1
00:00:00,000 --> 00:00:07,000
Remember, do not try anything you are about to see at home.

2
00:00:07,000 --> 00:00:18,000
On this high impact episode of Most Busters, Adam and Jamie go where no boffin has ever

3
00:00:18,000 --> 00:00:19,000
been.

4
00:00:19,000 --> 00:00:21,000
I love this myth.

5
00:00:21,000 --> 00:00:27,000
As they test whether a bullet fired and a bullet dropped simultaneously hit the ground

6
00:00:27,000 --> 00:00:29,000
at the same time.

7
00:00:29,000 --> 00:00:31,000
That is science.

8
00:00:31,000 --> 00:00:33,000
Meanwhile, Carrie, Tori and Grant

9
00:00:33,000 --> 00:00:35,000
I can't wait.

10
00:00:35,000 --> 00:00:41,000
Punch, bubbly, and blast their way to another fantastic fable.

11
00:00:41,000 --> 00:00:44,000
That might knock Busters socks off.

12
00:00:44,000 --> 00:00:49,000
Is it ever possible to literally knock someone's socks off?

13
00:00:49,000 --> 00:00:51,000
That was awesome!

14
00:00:51,000 --> 00:00:56,000
Who are the Myth Busters?

15
00:00:56,000 --> 00:00:57,000
Adam Soutage.

16
00:00:57,000 --> 00:00:59,000
Am I missing an eyebrow?

17
00:00:59,000 --> 00:01:01,000
And Jamie Heidemann.

18
00:01:01,000 --> 00:01:03,000
Hey, no guts, no glory.

19
00:01:03,000 --> 00:01:07,000
Between them more than 30 years of special effects experience.

20
00:01:07,000 --> 00:01:10,000
Joining them, Grant Imahara.

21
00:01:10,000 --> 00:01:12,000
For science.

22
00:01:12,000 --> 00:01:14,000
Tori Belleggi.

23
00:01:14,000 --> 00:01:15,000
We do that again.

24
00:01:15,000 --> 00:01:16,000
And Carrie Byron.

25
00:01:16,000 --> 00:01:18,000
One word for this.

26
00:01:18,000 --> 00:01:19,000
Splash!

27
00:01:19,000 --> 00:01:21,000
They don't just tell the myths.

28
00:01:21,000 --> 00:01:25,000
They put them to the test.

29
00:01:25,000 --> 00:01:29,000
What you got there?

30
00:01:29,000 --> 00:01:31,000
This is a good one.

31
00:01:31,000 --> 00:01:33,000
Picture two bullets.

32
00:01:33,000 --> 00:01:35,000
They're not just bullets.

33
00:01:35,000 --> 00:01:37,000
They're bullets.

34
00:01:37,000 --> 00:01:39,000
They're bullets.

35
00:01:39,000 --> 00:01:41,000
They're bullets.

36
00:01:41,000 --> 00:01:43,000
They're bullets.

37
00:01:43,000 --> 00:01:45,000
They're bullets.

38
00:01:45,000 --> 00:01:47,000
They're bullets.

39
00:01:47,000 --> 00:01:48,000
This is a good one.

40
00:01:48,000 --> 00:01:49,000
Picture two bullets.

41
00:01:49,000 --> 00:01:52,000
Each exactly the same distance from the ground.

42
00:01:52,000 --> 00:01:54,000
Each released at the exact same second.

43
00:01:54,000 --> 00:01:56,000
Except one bullet is dropped to the ground.

44
00:01:56,000 --> 00:01:58,000
The other is fired from a gun.

45
00:01:58,000 --> 00:02:00,000
The classic physics thought experiment states

46
00:02:00,000 --> 00:02:04,000
that both bullets will hit the ground at the same time.

47
00:02:04,000 --> 00:02:05,000
Based on what theory?

48
00:02:05,000 --> 00:02:07,000
Based on the theory that the bullet that's fired from the gun

49
00:02:07,000 --> 00:02:09,000
has no wings on it, no lift.

50
00:02:09,000 --> 00:02:12,000
Thus gravity has the same effect on it as it does on the drop bullet.

51
00:02:12,000 --> 00:02:15,000
And thus they hit the ground simultaneously.

52
00:02:15,000 --> 00:02:18,000
It's an age-old physics fable that says a bullet dropped

53
00:02:18,000 --> 00:02:22,000
and a bullet fired simultaneously from the same height

54
00:02:22,000 --> 00:02:25,000
will hit the ground at the same time.

55
00:02:25,000 --> 00:02:29,000
But it's so darn difficult to test that no one's tried.

56
00:02:29,000 --> 00:02:31,000
Until now.

57
00:02:31,000 --> 00:02:32,000
So what's the plan?

58
00:02:32,000 --> 00:02:35,000
Well, I've been thinking about this one for so long.

59
00:02:35,000 --> 00:02:39,000
While I have seen this experiment elucidated in textbooks to world over,

60
00:02:39,000 --> 00:02:43,000
I don't think that anyone anywhere has ever tried it

61
00:02:43,000 --> 00:02:47,000
full-sized, full-scale with real bullets coming out of real guns.

62
00:02:47,000 --> 00:02:49,000
That's what we should do.

63
00:02:49,000 --> 00:02:51,000
It sounds like it could be kind of tricky actually.

64
00:02:51,000 --> 00:02:53,000
I think we should do some shop experiments

65
00:02:53,000 --> 00:02:55,000
before we start using any live rounds.

66
00:02:55,000 --> 00:02:57,000
Fair enough. Let's start.

67
00:02:57,000 --> 00:03:01,000
So before going ballistic with the ballistics,

68
00:03:01,000 --> 00:03:07,000
Adam comes up with a more simple way to put that textbook theory to the test.

69
00:03:07,000 --> 00:03:10,000
Well, this test is going to be comprised of two separate parts.

70
00:03:10,000 --> 00:03:12,000
And I am using a bullet of sorts.

71
00:03:12,000 --> 00:03:17,000
You may recognize the steel ball bearing as some of our ammunition from Steam Machine Gun.

72
00:03:19,000 --> 00:03:21,000
Part the first.

73
00:03:21,000 --> 00:03:24,000
I'll be dropping this ball bearing from exactly table height,

74
00:03:24,000 --> 00:03:26,000
handily marked by this green line right here.

75
00:03:26,000 --> 00:03:29,000
I'll be filming its drop on a high-speed camera

76
00:03:29,000 --> 00:03:32,000
and counting how long it takes to get to the ground.

77
00:03:32,000 --> 00:03:34,000
Part the second.

78
00:03:34,000 --> 00:03:38,000
I'll be shooting this ball bearing from my little pinball shooter here,

79
00:03:38,000 --> 00:03:40,000
which I've marked out to be really accurate every time I shoot it.

80
00:03:40,000 --> 00:03:43,000
And I'm going to fire it across the same grid

81
00:03:43,000 --> 00:03:48,000
and measure how long it takes to reach the floor on the same high-speed camera.

82
00:03:48,000 --> 00:03:52,000
If this myth is true, those two times should be identical.

83
00:03:52,000 --> 00:03:54,000
Okay, here we go.

84
00:03:54,000 --> 00:03:57,000
This is the drop from table height.

85
00:03:57,000 --> 00:04:00,000
And three, two, one.

86
00:04:02,000 --> 00:04:04,000
Pretty simple.

87
00:04:04,000 --> 00:04:06,000
Couldn't be simpler.

88
00:04:06,000 --> 00:04:09,000
But there's a lot more to this test than meets the eye.

89
00:04:09,000 --> 00:04:12,000
Counting the frames of the high-speed shot,

90
00:04:12,000 --> 00:04:15,000
the marble took exactly 201 frames to get from my hand to the ground.

91
00:04:15,000 --> 00:04:17,000
And because we were filming at 500 frames per second,

92
00:04:17,000 --> 00:04:19,000
each frame is 2 milliseconds,

93
00:04:19,000 --> 00:04:22,000
which means that the total travel was 402 milliseconds.

94
00:04:22,000 --> 00:04:24,000
Or for those of you who love fractions,

95
00:04:24,000 --> 00:04:26,000
and come on, who doesn't?

96
00:04:26,000 --> 00:04:29,000
4.02 tenths of a second.

97
00:04:29,000 --> 00:04:31,000
So, 4.02 is the benchmark.

98
00:04:31,000 --> 00:04:34,000
Now, how will the fired ball stack up?

99
00:04:34,000 --> 00:04:36,000
High-speed ready?

100
00:04:36,000 --> 00:04:38,000
Time for some pinball wizardry.

101
00:04:38,000 --> 00:04:40,000
Here we go. Pinball shooter.

102
00:04:40,000 --> 00:04:43,000
And three, two, one.

103
00:04:44,000 --> 00:04:47,000
And the results are flipping fabulous.

104
00:04:47,000 --> 00:04:49,000
What do you got?

105
00:04:49,000 --> 00:04:51,000
It's actually pretty cool.

106
00:04:51,000 --> 00:04:54,000
When I drop the ball from table height,

107
00:04:54,000 --> 00:04:57,000
it takes 402 milliseconds to reach the ground.

108
00:04:57,000 --> 00:05:00,000
When I shoot it from this pinball shooter,

109
00:05:00,000 --> 00:05:03,000
410 milliseconds to reach the ground.

110
00:05:03,000 --> 00:05:05,000
It's 8 tenths of 1% difference.

111
00:05:05,000 --> 00:05:07,000
That's pretty much identical.

112
00:05:07,000 --> 00:05:09,000
With less than 1% difference,

113
00:05:09,000 --> 00:05:11,000
that's a pretty powerful result.

114
00:05:11,000 --> 00:05:13,000
Add a provisional thumbs up for the myth.

115
00:05:13,000 --> 00:05:16,000
But Jamie's not impressed.

116
00:05:17,000 --> 00:05:21,000
Okay, but I thought the story was about guns.

117
00:05:21,000 --> 00:05:23,000
You really want to get to shooting guns?

118
00:05:23,000 --> 00:05:26,000
Well, yeah.

119
00:05:27,000 --> 00:05:32,000
The next myth in the bag.

120
00:05:32,000 --> 00:05:35,000
Check this out.

121
00:05:35,000 --> 00:05:37,000
What's with your dirty laundry?

122
00:05:37,000 --> 00:05:39,000
It's not mine. It's theirs.

123
00:05:39,000 --> 00:05:41,000
Remember we asked the fans to send us their socks?

124
00:05:41,000 --> 00:05:43,000
Yeah, exactly. The fans wanted to know

125
00:05:43,000 --> 00:05:45,000
what happens to their missing socks in the laundry.

126
00:05:45,000 --> 00:05:47,000
Well, yes, that was the original idea,

127
00:05:47,000 --> 00:05:50,000
but I think we're going to have to make a little bit of a difference.

128
00:05:50,000 --> 00:05:53,000
I think we're going to have to make a little bit of a difference.

129
00:05:53,000 --> 00:05:55,000
What's the difference between the socks and the laundry?

130
00:05:55,000 --> 00:05:57,000
Well, yes, that was the original idea,

131
00:05:57,000 --> 00:05:59,000
but I think we're going to have to make a little

132
00:05:59,000 --> 00:06:00,000
last-minute change here.

133
00:06:00,000 --> 00:06:01,000
Alright, so what's the change?

134
00:06:01,000 --> 00:06:02,000
We'll check this out.

135
00:06:02,000 --> 00:06:05,000
Dear Mythbusters, here's some socks of mine,

136
00:06:05,000 --> 00:06:07,000
but rather than the washing tests,

137
00:06:07,000 --> 00:06:09,000
can you use them to test the phrase,

138
00:06:09,000 --> 00:06:11,000
it knocked my socks off.

139
00:06:11,000 --> 00:06:13,000
I like it.

140
00:06:13,000 --> 00:06:14,000
Yeah, take a look.

141
00:06:14,000 --> 00:06:16,000
A lot of these letters say the same thing.

142
00:06:16,000 --> 00:06:18,000
They want us to test that phrase.

143
00:06:18,000 --> 00:06:21,000
Well, if the fans want us to test the knock your socks off idiom,

144
00:06:21,000 --> 00:06:22,000
that sounds good to me.

145
00:06:23,000 --> 00:06:26,000
This Socket to a M saga comes from the world of boxing.

146
00:06:26,000 --> 00:06:30,000
When a particularly powerful pugilist was said to be so strong,

147
00:06:30,000 --> 00:06:33,000
he could knock someone clean out of their socks.

148
00:06:33,000 --> 00:06:35,000
But is it really possible?

149
00:06:37,000 --> 00:06:38,000
Alright, knocking your socks off.

150
00:06:38,000 --> 00:06:40,000
I mean, this is a weird one, but I like it.

151
00:06:40,000 --> 00:06:41,000
What's the plan?

152
00:06:41,000 --> 00:06:43,000
Well, since this idiom has its roots in boxing,

153
00:06:43,000 --> 00:06:46,000
I think we definitely need to start with some sort of heavy impact punch.

154
00:06:46,000 --> 00:06:48,000
And that pretty much rules any of us out.

155
00:06:48,000 --> 00:06:50,000
Okay, I got an idea.

156
00:06:50,000 --> 00:06:52,000
Let's get the nitrogen cannon from the superhero special.

157
00:06:52,000 --> 00:06:54,000
But instead of firing a grappling hook,

158
00:06:54,000 --> 00:06:56,000
we reconfigure it to fire a fist,

159
00:06:56,000 --> 00:06:59,000
giving Buster the biggest uppercut of his life.

160
00:06:59,000 --> 00:07:01,000
Well, you know what it sounds like to me?

161
00:07:01,000 --> 00:07:03,000
It's time for the main event.

162
00:07:03,000 --> 00:07:05,000
What are your corners?

163
00:07:08,000 --> 00:07:10,000
In a long line of lethal inventions,

164
00:07:10,000 --> 00:07:14,000
Grant says this is one of the most dangerous he's ever built.

165
00:07:14,000 --> 00:07:17,000
But will it do the job on Buster?

166
00:07:17,000 --> 00:07:20,000
So, to deliver the kind of punch that might knock Buster's socks off,

167
00:07:20,000 --> 00:07:22,000
I've taken this out of retirement.

168
00:07:22,000 --> 00:07:25,000
It's our nitrogen cannon from the superhero special.

169
00:07:25,000 --> 00:07:28,000
We've fired a grappling hook to try and turn the Batmobile

170
00:07:28,000 --> 00:07:30,000
around a 90-degree corner.

171
00:07:30,000 --> 00:07:31,000
We hit it!

172
00:07:31,000 --> 00:07:34,000
And today, Grant is modifying the cannon

173
00:07:34,000 --> 00:07:37,000
to blast a killer punch to Buster's jaw,

174
00:07:37,000 --> 00:07:41,000
while Tori's turning out the all-important fist.

175
00:07:42,000 --> 00:07:44,000
So, what I have here is a solid steel rod

176
00:07:44,000 --> 00:07:46,000
that's going to go into the cannon.

177
00:07:46,000 --> 00:07:48,000
On the end of it, I'm going to attach a rubber fist.

178
00:07:48,000 --> 00:07:50,000
So, I'm going to be using a high-density,

179
00:07:50,000 --> 00:07:52,000
high-impact resistant rubber.

180
00:07:52,000 --> 00:07:55,000
I'll be able to weld it to the punching rod,

181
00:07:55,000 --> 00:07:57,000
stick it into Grant's cannon,

182
00:07:57,000 --> 00:07:59,000
fire it up at Buster's jaw,

183
00:07:59,000 --> 00:08:01,000
and see if we can knock his socks off.

184
00:08:01,000 --> 00:08:04,000
But even before the fists start flying,

185
00:08:04,000 --> 00:08:07,000
Carrie's worried about collateral damage.

186
00:08:07,000 --> 00:08:10,000
Last time we tested Grant's nitrogen cannon,

187
00:08:10,000 --> 00:08:13,000
we shot a hole through our wall and into our neighbor's space.

188
00:08:13,000 --> 00:08:15,000
I might have to go have a chat with them.

189
00:08:15,000 --> 00:08:19,000
So, we thought, hey, maybe this time, a few safety measures.

190
00:08:19,000 --> 00:08:22,000
And after a couple of mattresses are roosted in the roof,

191
00:08:22,000 --> 00:08:25,000
the scene is set for round one of this myth.

192
00:08:26,000 --> 00:08:29,000
Right, pal. This is your big chance.

193
00:08:29,000 --> 00:08:31,000
Don't blow it.

194
00:08:31,000 --> 00:08:34,000
Previous research says that a heavyweight boxer

195
00:08:34,000 --> 00:08:37,000
can pack a punch of 4,000 Newtons.

196
00:08:38,000 --> 00:08:40,000
Pressurizing.

197
00:08:40,000 --> 00:08:42,000
So, to match that kind of power,

198
00:08:42,000 --> 00:08:47,000
Grant primes up his pride and joy for the knock your socks off rumble.

199
00:08:47,000 --> 00:08:48,000
Okay.

200
00:08:48,000 --> 00:08:51,000
Knock him out of his socks?

201
00:08:51,000 --> 00:08:54,000
I think that this is actually just powerful enough

202
00:08:54,000 --> 00:08:57,000
to make that old boxing adage true.

203
00:08:57,000 --> 00:09:00,000
But Grant ain't convinced.

204
00:09:00,000 --> 00:09:03,000
I think that no matter how high we go at this cannon,

205
00:09:03,000 --> 00:09:07,000
no matter if we go through his head and punch a hole in the ceiling,

206
00:09:07,000 --> 00:09:10,000
none of that is going to be capable of knocking his socks off.

207
00:09:10,000 --> 00:09:13,000
I just think that there's too much body.

208
00:09:13,000 --> 00:09:16,000
You know, we're talking about a punch to the chin.

209
00:09:16,000 --> 00:09:19,000
To get that to translate all the way down to his shoes

210
00:09:19,000 --> 00:09:21,000
and kick out and blow his socks off?

211
00:09:21,000 --> 00:09:22,000
No way.

212
00:09:22,000 --> 00:09:26,000
Let's not pull any more punches and get this show on the road.

213
00:09:27,000 --> 00:09:28,000
Here we go.

214
00:09:28,000 --> 00:09:31,000
Three, two, one.

215
00:09:40,000 --> 00:09:42,000
Oh-ho!

216
00:09:43,000 --> 00:09:46,000
500 psi was really intense.

217
00:09:46,000 --> 00:09:48,000
Yeah, we took out the lights.

218
00:09:48,000 --> 00:09:50,000
Woo!

219
00:09:51,000 --> 00:09:53,000
That was some punch.

220
00:09:53,000 --> 00:09:55,000
But it's clear that amidst the carnage,

221
00:09:55,000 --> 00:09:57,000
Buster's socks stayed put.

222
00:09:57,000 --> 00:10:00,000
But only just.

223
00:10:00,000 --> 00:10:01,000
Whoa!

224
00:10:01,000 --> 00:10:02,000
Take a look at this.

225
00:10:02,000 --> 00:10:06,000
Look, look, it, they'd suck slightly got dragged off.

226
00:10:06,000 --> 00:10:09,000
Now that's what I call taking it on the chin.

227
00:10:09,000 --> 00:10:12,000
The punch not only sent Buster barreling backwards,

228
00:10:12,000 --> 00:10:14,000
it ripped off one of his shoes,

229
00:10:14,000 --> 00:10:16,000
partially dragging a sock with it.

230
00:10:16,000 --> 00:10:19,000
But it's not enough to call the myth a winner.

231
00:10:20,000 --> 00:10:22,000
So according to the high-speed footage,

232
00:10:22,000 --> 00:10:28,000
the Nitro Punch accelerated the fist to a final speed of 22.2 meters per second,

233
00:10:28,000 --> 00:10:32,000
giving us an overall force of over 6,000 Newtons,

234
00:10:32,000 --> 00:10:37,000
which is 50% more than your heavyweight prize fighters' best punch.

235
00:10:37,000 --> 00:10:40,000
And even at superhuman punching strength,

236
00:10:40,000 --> 00:10:44,000
it still wasn't enough to knock Buster's socks off.

237
00:10:44,000 --> 00:10:45,000
But you know what?

238
00:10:45,000 --> 00:10:49,000
The cannon's reputation is still intact.

239
00:10:50,000 --> 00:10:52,000
Now, I'm not saying that this is busted.

240
00:10:52,000 --> 00:10:55,000
All I'm saying is right now it's not looking good for the myth.

241
00:10:55,000 --> 00:10:58,000
But let's say it wasn't a boxer that knocked the person's socks off.

242
00:10:58,000 --> 00:11:00,000
Maybe it was something bigger with more power.

243
00:11:00,000 --> 00:11:02,000
Sorry, Buster, we're gonna have to wake you up.

244
00:11:02,000 --> 00:11:04,000
We got more experimenting to do.

245
00:11:04,000 --> 00:11:05,000
Get up, buddy.

246
00:11:05,000 --> 00:11:10,000
Coming up, have Adam and Jamie drawn a blank on this one?

247
00:11:10,000 --> 00:11:12,000
This is a conundrum.

248
00:11:12,000 --> 00:11:14,000
Our experiments contradict each other.

249
00:11:14,000 --> 00:11:19,000
And later, Carrie, Tori and Grant ram up the power.

250
00:11:20,000 --> 00:11:22,000
That might knock Buster's socks off.

251
00:11:32,000 --> 00:11:34,000
Bullet Belloni or Physics Fact.

252
00:11:34,000 --> 00:11:38,000
This test is so hard, no one's ever dared try it.

253
00:11:38,000 --> 00:11:43,000
Does a bullet fired and a bullet dropped simultaneously from the same height

254
00:11:43,000 --> 00:11:46,000
hit the ground at the same time?

255
00:11:48,000 --> 00:11:50,000
Before breaking out the real bullets,

256
00:11:50,000 --> 00:11:53,000
Adam's letting loose with something a little more manageable.

257
00:11:56,000 --> 00:11:57,000
A paintball gun.

258
00:11:58,000 --> 00:11:59,000
Perfect.

259
00:11:59,000 --> 00:12:02,000
We've mounted this paintball gun so that not only is it perfectly level,

260
00:12:02,000 --> 00:12:04,000
but soon backs of the paintballs will actually hit the ground

261
00:12:04,000 --> 00:12:06,000
before they hit the end of the shop.

262
00:12:06,000 --> 00:12:09,000
This should allow us to do some perfect comparisons

263
00:12:09,000 --> 00:12:12,000
between a fired projectile and a dropped projectile.

264
00:12:16,000 --> 00:12:18,000
If I fire a paintball gun from this gun

265
00:12:18,000 --> 00:12:20,000
and catch a shot of it on the high speed camera at the other end of the shop,

266
00:12:20,000 --> 00:12:23,000
hitting the ground, how do I know exactly when it left the gun?

267
00:12:23,000 --> 00:12:24,000
I'll tell you how.

268
00:12:24,000 --> 00:12:27,000
I've got a switch hooked up right here to the trigger of this gun.

269
00:12:27,000 --> 00:12:31,000
When I pull it, this battery powers an LED down there,

270
00:12:31,000 --> 00:12:33,000
and it's hooked up to our high speed camera.

271
00:12:33,000 --> 00:12:34,000
Alright, here we go.

272
00:12:34,000 --> 00:12:38,000
So without further ado, Adam does the fire test.

273
00:12:41,000 --> 00:12:44,000
The high speed records the moment the light comes on,

274
00:12:44,000 --> 00:12:46,000
and the paintball hitting the ground.

275
00:12:46,000 --> 00:12:49,000
Look at how beautiful that is.

276
00:12:49,000 --> 00:12:54,000
Making it possible to precisely time how long the journey from gun to ground takes,

277
00:12:54,000 --> 00:12:59,000
which, for this test, is exactly 555 milliseconds.

278
00:13:02,000 --> 00:13:03,000
That is science.

279
00:13:07,000 --> 00:13:11,000
So I'm just about to hold this paintball up at exactly the level of the barrel.

280
00:13:11,000 --> 00:13:13,000
I'm going to use a laser level to help me know it.

281
00:13:13,000 --> 00:13:18,000
Film it on high speed and time exactly how long it takes to get from my fingers to the ground.

282
00:13:18,000 --> 00:13:21,000
I will then compare that time to the fired paintball.

283
00:13:22,000 --> 00:13:25,000
Paintball drop test in three, two, one.

284
00:13:26,000 --> 00:13:33,000
This time the difference between the fired and dropped paintball is 59 milliseconds.

285
00:13:35,000 --> 00:13:40,000
A lot more than the 8 millisecond gap between the fired and dropped ball bearing,

286
00:13:41,000 --> 00:13:44,000
which has the mythbusters scratching their heads.

287
00:13:45,000 --> 00:13:46,000
Well, this is a conundrum.

288
00:13:46,000 --> 00:13:50,000
Our first two experiments seem to contradict each other.

289
00:13:50,000 --> 00:13:54,000
However, I think the culprit lies in the paintballs themselves.

290
00:13:54,000 --> 00:13:55,000
Watch this.

291
00:13:58,000 --> 00:13:59,000
See those trajectories?

292
00:13:59,000 --> 00:14:00,000
Each one's different.

293
00:14:00,000 --> 00:14:01,000
They're curving.

294
00:14:01,000 --> 00:14:06,000
That tells me that the irregular surfaces of the paintballs, manufacturing vagaries,

295
00:14:06,000 --> 00:14:11,000
is causing these things to have aerodynamic artifacts that makes them inaccurate.

296
00:14:11,000 --> 00:14:15,000
And thus, I think, renders the paintball test invalid.

297
00:14:15,000 --> 00:14:20,000
I don't see anywhere to go with this except to start using real bullets and soon.

298
00:14:25,000 --> 00:14:29,000
Carrie, Tori and Grant are trying to literally knock someone's socks off.

299
00:14:32,000 --> 00:14:35,000
A KO to the kisser put Buster down for the count.

300
00:14:36,000 --> 00:14:38,000
And just about totaled the workshop.

301
00:14:39,000 --> 00:14:41,000
We knocked Buster out.

302
00:14:42,000 --> 00:14:46,000
So now the team is ramping up outdoors with more power.

303
00:14:47,000 --> 00:14:49,000
Look at the size of this thing.

304
00:14:50,000 --> 00:14:52,000
Buster is going to be hating it.

305
00:14:52,000 --> 00:14:59,000
More power means more force and possibly a greater chance of knocking off Buster's socks.

306
00:15:00,000 --> 00:15:03,000
This is a gravitational potential energy pendulum.

307
00:15:03,000 --> 00:15:06,000
Normally, it's used for testing highway safety barriers.

308
00:15:06,000 --> 00:15:09,000
But today, it's going to be our battering ram.

309
00:15:09,000 --> 00:15:12,000
We're going to use it to try and knock Buster's socks off.

310
00:15:13,000 --> 00:15:15,000
But before Buster gets put in the firing line...

311
00:15:16,000 --> 00:15:17,000
You can get off the brake now.

312
00:15:18,000 --> 00:15:19,000
No brakes.

313
00:15:20,000 --> 00:15:24,000
The team wants to see how powerful the pendulum of destruction is.

314
00:15:26,000 --> 00:15:27,000
Can't wait.

315
00:15:27,000 --> 00:15:28,000
Here we go.

316
00:15:28,000 --> 00:15:32,000
In three, two, one.

317
00:15:32,000 --> 00:15:33,000
One.

318
00:15:47,000 --> 00:15:49,000
That might knock Buster's socks off.

319
00:15:49,000 --> 00:15:50,000
Come on, let's see.

320
00:15:52,000 --> 00:15:56,000
Although the pendulum's impact is actually slower than the flying fist,

321
00:15:56,000 --> 00:15:58,000
because its mass is so much greater,

322
00:15:58,000 --> 00:16:03,000
it's able to deliver over 20 times the force of the nitro cannon.

323
00:16:03,000 --> 00:16:05,000
That's one hell of a punch.

324
00:16:06,000 --> 00:16:07,000
Look at that.

325
00:16:07,000 --> 00:16:12,000
I mean, this was enough to lift this van and shift it back about four or five feet.

326
00:16:15,000 --> 00:16:18,000
Which in a crack nutshell is not good news for Buster.

327
00:16:20,000 --> 00:16:21,000
I think we're ready.

328
00:16:21,000 --> 00:16:22,000
Coming up.

329
00:16:22,000 --> 00:16:25,000
Adam and Jamie blaze a trail towards physics glory.

330
00:16:27,000 --> 00:16:29,000
That looks like we might have hit it.

331
00:16:29,000 --> 00:16:35,000
And Carrie, Tori and Grant make another bruising bid to knock Buster's socks off.

332
00:16:35,000 --> 00:16:37,000
Shoes are still there.

333
00:16:37,000 --> 00:16:39,000
Yeah, but let's see about the socks.

334
00:16:47,000 --> 00:16:54,000
So far, testing whether a slug fired and a slug dropped simultaneously hit the ground at the same time...

335
00:16:54,000 --> 00:16:56,000
Oh, a little too powerful.

336
00:16:56,000 --> 00:16:58,000
...has been a mixed bag for Adam and Jamie.

337
00:16:59,000 --> 00:17:00,000
Perfect.

338
00:17:00,000 --> 00:17:08,000
In two small-scale tests, the myth was falling towards confirmed in one that's pretty much identical,

339
00:17:08,000 --> 00:17:10,000
but busted in the other.

340
00:17:10,000 --> 00:17:12,000
So what now?

341
00:17:13,000 --> 00:17:17,000
We got to go full-scale with bullets, but dude, how difficult is that going to be?

342
00:17:17,000 --> 00:17:22,000
I mean, for starters, I don't know how far a bullet fired level from a gun even goes.

343
00:17:22,000 --> 00:17:25,000
Well, why don't we try a .45 caliber pistol?

344
00:17:25,000 --> 00:17:27,000
I mean, that has a large, slow-moving round.

345
00:17:27,000 --> 00:17:29,000
And head out to the range and see where it hits the ground.

346
00:17:29,000 --> 00:17:30,000
Exactly.

347
00:17:30,000 --> 00:17:31,000
Perfect. Let's do it.

348
00:17:32,000 --> 00:17:38,000
And the shooting range is the perfect place to get the low-down on launching bullets.

349
00:17:38,000 --> 00:17:40,000
We're looking for a couple of different things here.

350
00:17:40,000 --> 00:17:45,000
The first is that we need to have all the bullets coming out of the gun consistently,

351
00:17:45,000 --> 00:17:48,000
so we know we're collecting accurate data.

352
00:17:48,000 --> 00:17:49,000
That's perfect.

353
00:17:49,000 --> 00:17:53,000
The second one is we're wanting to find out how they're dropping,

354
00:17:53,000 --> 00:17:58,000
how far away from that gun they travel before they hit the ground.

355
00:17:58,000 --> 00:18:06,000
And before the boys blaze away, they're rigging the gun rigid and level, exactly 36 inches off the ground.

356
00:18:06,000 --> 00:18:08,000
Nice. I think we're ready.

357
00:18:08,000 --> 00:18:14,000
The reason we've gone level is that I'm only interested in gravity's effect on the bullet once it leaves the gun.

358
00:18:14,000 --> 00:18:19,000
If I am the gun higher, that bullet will go farther, but it's going farther because of its trajectory.

359
00:18:19,000 --> 00:18:22,000
If I shoot it level, then it starts dropping.

360
00:18:22,000 --> 00:18:24,000
Gravity starts having effect the moment it leaves the barrel.

361
00:18:24,000 --> 00:18:26,000
And that's what I'm interested in.

362
00:18:26,000 --> 00:18:28,000
How fast does it drop and how far does it go?

363
00:18:30,000 --> 00:18:31,000
Gun the side.

364
00:18:31,000 --> 00:18:35,000
Right now, the guys have no idea where the bullet will land.

365
00:18:35,000 --> 00:18:46,000
So Adam and Jamie test to see how far the bullet falls over 100, 200, and 300 feet.

366
00:18:50,000 --> 00:18:53,000
That one was half an inch above the other one. Let's go take a look.

367
00:18:53,000 --> 00:18:54,000
Okay.

368
00:18:54,000 --> 00:18:59,000
What we've got so far in terms of data is actually pretty freaking cool.

369
00:18:59,000 --> 00:19:02,000
This orange line represents the bullet at 100 feet.

370
00:19:02,000 --> 00:19:07,000
The laser sight was aimed just about an inch higher than that, which is just what we'd expect to see.

371
00:19:07,000 --> 00:19:11,000
A very little amount of drop off. 200 feet. A little more drop off.

372
00:19:11,000 --> 00:19:14,000
300 feet. That blue line, a lot more drop off.

373
00:19:14,000 --> 00:19:25,000
Armed with that info, Adam and Jamie can now zero in on the drop zone, which they've calculated to be between 350 and 370 feet away.

374
00:19:26,000 --> 00:19:32,000
This right here is a runway. It's a runway for our little bullet to land on.

375
00:19:32,000 --> 00:19:37,000
I expect to be able to see where they land by the marks they make on this white paper.

376
00:19:37,000 --> 00:19:41,000
And hopefully, where they land is a reasonably discreet space.

377
00:19:42,000 --> 00:19:47,000
Firing in 3, 2, 1.

378
00:19:50,000 --> 00:19:53,000
Oh, that looks like we might have hit it.

379
00:19:53,000 --> 00:20:03,000
And after letting loose one more time, Adam and Jamie discover the bullets are biting the dust roughly 360 feet from the gun.

380
00:20:05,000 --> 00:20:07,000
I think we got what we came for.

381
00:20:08,000 --> 00:20:12,000
We've been able to predict fairly consistently where the bullets are hitting the ground.

382
00:20:12,000 --> 00:20:17,000
But the problem is we're outside. We could get a breeze that might kind of skew the results.

383
00:20:17,000 --> 00:20:22,000
And also, and this is the most important thing, the ground here is really uneven.

384
00:20:22,000 --> 00:20:27,000
So to go forward from here, we need a perfectly flat surface to work off of.

385
00:20:27,000 --> 00:20:31,000
Well, all we need now is 400 feet of flat floor.

386
00:20:31,000 --> 00:20:34,000
I think I might be able to handle that.

387
00:20:40,000 --> 00:20:45,000
Carri Tori and Grant are busting Buster's chops, trying to knock him out of his socks.

388
00:20:46,000 --> 00:20:48,000
Yeah, we took out the lights!

389
00:20:49,000 --> 00:20:55,000
Now they're winding the carnage up a notch at a car-clobbering crash test station.

390
00:20:55,000 --> 00:20:59,000
And these guys know how to wreck stuff. They smashed our moose.

391
00:21:00,000 --> 00:21:02,000
They smashed our trailer.

392
00:21:03,000 --> 00:21:05,000
And they smashed our fruit stand.

393
00:21:07,000 --> 00:21:09,000
Now they're going to smash Buster.

394
00:21:10,000 --> 00:21:14,000
So while the team dresses Buster in a pair of everyday shoes and socks.

395
00:21:14,000 --> 00:21:19,000
By the way, thanks to Andrew Parris of Houston, Texas, for letting us use his socks.

396
00:21:20,000 --> 00:21:26,000
And knocked out of Andrew's socks or not, it's clear that Buster's in for a torrent time.

397
00:21:28,000 --> 00:21:34,000
This is Knock Your Socks Off Experiment. Buster in shoes and socks versus battering ram.

398
00:21:34,000 --> 00:21:36,000
In three, two, one.

399
00:21:36,000 --> 00:21:37,000
One.

400
00:21:43,000 --> 00:21:45,000
His shoes didn't come off at all.

401
00:21:45,000 --> 00:21:46,000
Let's see if they loosened it all.

402
00:21:46,000 --> 00:21:48,000
That's a pretty massive hit.

403
00:21:48,000 --> 00:21:50,000
Dang, that looked like it hurt.

404
00:21:50,000 --> 00:21:52,000
Yep, that's a definite ouch.

405
00:21:52,000 --> 00:21:58,000
Buster just got walloped with 17,000 pounds of body-breaking force.

406
00:21:58,000 --> 00:22:00,000
But did his footwear fly?

407
00:22:01,000 --> 00:22:03,000
Not this time.

408
00:22:03,000 --> 00:22:05,000
Look at that. They're not even loose.

409
00:22:05,000 --> 00:22:07,000
I bet his joints are looser than his shoes.

410
00:22:08,000 --> 00:22:10,000
We just dropped a pendulum that weighs almost a ton.

411
00:22:10,000 --> 00:22:13,000
Straight into Buster's chest and knocked it back 40 feet.

412
00:22:13,000 --> 00:22:16,000
But we were still unable to knock off his shoes or his socks.

413
00:22:16,000 --> 00:22:18,000
But we're not done yet.

414
00:22:18,000 --> 00:22:21,000
Seeing on the last test, these shoes stayed on.

415
00:22:21,000 --> 00:22:24,000
But what if he just got his socks?

416
00:22:24,000 --> 00:22:26,000
Maybe the shoes are holding the socks on.

417
00:22:26,000 --> 00:22:32,000
So with Buster's feet supporting his own weight, the pendulum is once again lifted to full height.

418
00:22:32,000 --> 00:22:35,000
For full knock your socks off power.

419
00:22:36,000 --> 00:22:38,000
Okay, here we go.

420
00:22:38,000 --> 00:22:42,000
This is Buster with socks only versus a pendulum.

421
00:22:42,000 --> 00:22:45,000
In three, two, one.

422
00:22:54,000 --> 00:22:55,000
Yeah!

423
00:22:55,000 --> 00:22:57,000
His head came off.

424
00:22:57,000 --> 00:23:00,000
But look, one of his socks is knocked almost completely off.

425
00:23:00,000 --> 00:23:02,000
Yeah, but still technically on.

426
00:23:02,000 --> 00:23:05,000
Yeah, he didn't get knocked out of them necessarily.

427
00:23:05,000 --> 00:23:07,000
Oh, you guys are so hard to satisfy.

428
00:23:08,000 --> 00:23:13,000
Maybe Carrie should take a look at the high speed before she gets carried away.

429
00:23:15,000 --> 00:23:17,000
Here comes the pendulum.

430
00:23:19,000 --> 00:23:25,000
That's good. That's feet go straight back, but his socks haven't come off yet.

431
00:23:26,000 --> 00:23:27,000
Still on.

432
00:23:27,000 --> 00:23:29,000
Oh, there it is.

433
00:23:29,000 --> 00:23:31,000
It's dragging along the ground.

434
00:23:31,000 --> 00:23:33,000
It's not knocking him out of his socks.

435
00:23:33,000 --> 00:23:35,000
Okay, so that doesn't count.

436
00:23:35,000 --> 00:23:36,000
No.

437
00:23:36,000 --> 00:23:41,000
Confirming this myth is turning out to be as tough as Buster's stay put socks.

438
00:23:43,000 --> 00:23:45,000
Yeah, but we can't bust this now.

439
00:23:45,000 --> 00:23:47,000
I mean, I don't think we've tried hard enough to knock him out of his socks.

440
00:23:47,000 --> 00:23:51,000
No, I think we need a new technique, something a little bit more.

441
00:23:51,000 --> 00:23:54,000
Or in other words, this ain't over till it's over.

442
00:23:54,000 --> 00:23:55,000
Good work, buddy.

443
00:23:55,000 --> 00:23:59,000
And the myth busters are going in search of more power.

444
00:24:00,000 --> 00:24:04,000
Next, the team go all out on the explosives.

445
00:24:04,000 --> 00:24:07,000
That oughta knock some socks off.

446
00:24:07,000 --> 00:24:12,000
And later, Adam and Jamie get on target for a world first.

447
00:24:13,000 --> 00:24:15,000
Dude, I'd say that is absolutely perfect.

448
00:24:15,000 --> 00:24:16,000
Works for me.

449
00:24:19,000 --> 00:24:22,000
Please do not try what we do on this show at home.

450
00:24:22,000 --> 00:24:24,000
We're what you call experts.

451
00:24:24,000 --> 00:24:26,000
It's safer that way.

452
00:24:31,000 --> 00:24:32,000
Socks.

453
00:24:32,000 --> 00:24:35,000
Sometimes they just seem to have a mind of their own.

454
00:24:35,000 --> 00:24:38,000
But can they ever be knocked off your feet?

455
00:24:38,000 --> 00:24:42,000
Okay, so far Buster's lost a shoe, but no socks.

456
00:24:42,000 --> 00:24:44,000
Yeah, the impact doesn't seem to be working out.

457
00:24:44,000 --> 00:24:48,000
It seems like you're going to need a massive amount of force to get those socks off.

458
00:24:48,000 --> 00:24:51,000
I think you're right, and I think I have just the thing.

459
00:24:51,000 --> 00:24:52,000
What?

460
00:24:52,000 --> 00:24:53,000
Explosives.

461
00:24:53,000 --> 00:24:54,000
Surprise.

462
00:24:54,000 --> 00:24:55,000
You can see that one coming.

463
00:24:55,000 --> 00:24:56,000
Seriously?

464
00:24:56,000 --> 00:25:01,000
Yeah, there have been cases of people getting their clothes blown off from an explosion,

465
00:25:01,000 --> 00:25:02,000
yet they survived the blast.

466
00:25:02,000 --> 00:25:04,000
So socks are closed.

467
00:25:04,000 --> 00:25:05,000
I say we test this one.

468
00:25:05,000 --> 00:25:10,000
Okay, well, let's go to the quarry and take, say, like, I don't know, 500 pounds of explosives.

469
00:25:10,000 --> 00:25:11,000
I like 500.

470
00:25:11,000 --> 00:25:16,000
Get some mannequin legs, put some socks on them, and then we'll put them at different distances from the center of the blast.

471
00:25:16,000 --> 00:25:17,000
Round three.

472
00:25:17,000 --> 00:25:20,000
Knock your socks off with an explosive shockwave.

473
00:25:20,000 --> 00:25:23,000
And you couldn't have picked a nicer day for it.

474
00:25:23,000 --> 00:25:24,000
Wow.

475
00:25:24,000 --> 00:25:30,000
Oh my gosh, this is awesome.

476
00:25:30,000 --> 00:25:34,000
The mannequin legs are going to be screwed onto these stands.

477
00:25:34,000 --> 00:25:41,000
Then position on a circular grid at various distances from the explosion.

478
00:25:41,000 --> 00:25:43,000
This is the blast center.

479
00:25:43,000 --> 00:25:47,000
This is where we're going to be setting off a 500 pound explosion.

480
00:25:47,000 --> 00:25:51,000
Hopefully that blast will give us enough power to knock off the socks.

481
00:25:51,000 --> 00:26:01,000
Now we're going to put our first set of legs 15 feet away from the blast, then 25 feet, 35 feet, 45 feet, and finally, 55 feet away.

482
00:26:01,000 --> 00:26:06,000
This way we have a variety of distances from the blast, because the closer you are to the blast,

483
00:26:06,000 --> 00:26:09,000
probably the more likely that your socks are going to get knocked off.

484
00:26:09,000 --> 00:26:14,000
But let's face it, if you're standing too close to the blast, I'm sure you're going to lose more than just your socks.

485
00:26:15,000 --> 00:26:21,000
Which is why the team are now adding and living to tell the tale to the knock your socks off myth.

486
00:26:21,000 --> 00:26:26,000
So in addition to knocking your socks off, a big part of this myth is survivability.

487
00:26:26,000 --> 00:26:30,000
And we measure the force of an explosion in pounds per square inch, or PSI.

488
00:26:30,000 --> 00:26:37,000
Just to give you an idea of what we're talking about, at 2.5 PSI, you're likely to rupture your eardrums.

489
00:26:37,000 --> 00:26:44,000
And we've calculated with 500 pounds of explosives at a range of 20 feet, you're going to experience over 100 PSI,

490
00:26:44,000 --> 00:26:48,000
which means a very high likelihood of death.

491
00:26:48,000 --> 00:26:55,000
To measure exactly where that lethal pressure kicks in, Grant is assembling some super sensitive equipment.

492
00:26:55,000 --> 00:26:59,000
This is a burst disk made by our friends at Oseco.

493
00:26:59,000 --> 00:27:03,000
It's a very thin metal membrane that's calibrated to rupture at 100 PSI.

494
00:27:03,000 --> 00:27:10,000
Now if this is still intact at the end of the experiment, and we've blown the socks off, then there's a real chance of confirming this myth.

495
00:27:11,000 --> 00:27:14,000
Meanwhile, Carrie and Tori dull out the dummies.

496
00:27:15,000 --> 00:27:22,000
We've specifically designed these legs to give us every opportunity for a successful sock blast removal.

497
00:27:22,000 --> 00:27:26,000
Now we've got one foot on the ground, one foot in the air as if you were running or walking.

498
00:27:26,000 --> 00:27:31,000
That way if a sock is going to come off in either of these positions, myth is confirmed.

499
00:27:32,000 --> 00:27:39,000
And just to mark this explosive occasion, the official Mythbusters sneaker.

500
00:27:39,000 --> 00:27:40,000
They're blast zone shoes.

501
00:27:40,000 --> 00:27:41,000
I like them.

502
00:27:41,000 --> 00:27:46,000
And one of our fans hand knit an entire box of socks for us.

503
00:27:47,000 --> 00:27:51,000
Fag's big time patience void of Somerville, Massachusetts.

504
00:27:52,000 --> 00:27:57,000
At each foot station, some feet will have your socks and shoes.

505
00:27:57,000 --> 00:27:58,000
How's that fit, man?

506
00:27:58,000 --> 00:28:00,000
And others, just socks.

507
00:28:02,000 --> 00:28:03,000
S-15.

508
00:28:04,000 --> 00:28:07,000
That means sock only at 15 feet.

509
00:28:07,000 --> 00:28:11,000
That way when these get blown to smithereens, we might be able to track where they came from.

510
00:28:13,000 --> 00:28:17,000
But before they push the plunger, the team needs two more vital ingredients.

511
00:28:18,000 --> 00:28:19,000
Cool.

512
00:28:19,000 --> 00:28:20,000
First, the fire department.

513
00:28:20,000 --> 00:28:23,000
You know what they say, safe exploding is good exploding.

514
00:28:23,000 --> 00:28:25,000
And the explosives.

515
00:28:25,000 --> 00:28:27,000
Here comes our info.

516
00:28:27,000 --> 00:28:31,000
Courtesy of retired FBI agent Frank Doyle.

517
00:28:31,000 --> 00:28:33,000
So look so you guys have a package for us.

518
00:28:33,000 --> 00:28:35,000
Oh, I brought you a really nice package.

519
00:28:35,000 --> 00:28:36,000
Info, right?

520
00:28:36,000 --> 00:28:37,000
Yep.

521
00:28:37,000 --> 00:28:38,000
Oh, that ought to do it.

522
00:28:38,000 --> 00:28:41,000
That ought to knock some socks off.

523
00:28:42,000 --> 00:28:43,000
You better believe it.

524
00:28:43,000 --> 00:28:48,000
And if any socks are going to get knocked off soon, this is the stuff to do it.

525
00:28:48,000 --> 00:28:50,000
This is 500 pounds of anfo.

526
00:28:50,000 --> 00:28:56,000
Just to give you an idea, it took 800 pounds of anfo to completely vaporize a cement truck.

527
00:29:00,000 --> 00:29:01,000
The explosives are in place.

528
00:29:01,000 --> 00:29:02,000
The legs are in place.

529
00:29:02,000 --> 00:29:04,000
The burst discs are connected.

530
00:29:04,000 --> 00:29:10,000
It's time for us to run away and let Frank and the bomb squad do their final preparations.

531
00:29:10,000 --> 00:29:12,000
And then it's boom time.

532
00:29:12,000 --> 00:29:16,000
Next, the Shockwave Showdown.

533
00:29:16,000 --> 00:29:18,000
It comes to a grizzly end.

534
00:29:18,000 --> 00:29:21,000
Oh my god, there's a foot inside.

535
00:29:28,000 --> 00:29:33,000
Once upon a time in the Wild West, the shockwave was a big hit.

536
00:29:33,000 --> 00:29:35,000
And it was a big hit.

537
00:29:35,000 --> 00:29:37,000
And it was a big hit.

538
00:29:38,000 --> 00:29:46,000
Once upon a time in the Wild West, a fired bullet could just about settle any bust up.

539
00:29:49,000 --> 00:29:56,000
But is it true that a bullet dropped and a bullet fired simultaneously will hit the ground at the same time?

540
00:29:59,000 --> 00:30:00,000
That is science.

541
00:30:00,000 --> 00:30:01,000
Out of the range.

542
00:30:01,000 --> 00:30:02,000
All right.

543
00:30:02,000 --> 00:30:03,000
Good to go.

544
00:30:03,000 --> 00:30:11,000
Adam and Jamie found that a bullet from their 45 automatic flew 360 feet before it bit the dust.

545
00:30:11,000 --> 00:30:12,000
I love this myth.

546
00:30:12,000 --> 00:30:20,000
Now, all they need is a location to suit one of the most sophisticated experiments the mythbusters have ever attempted.

547
00:30:24,000 --> 00:30:28,000
And down by the shores of old San Francisco Bay, they've got one.

548
00:30:29,000 --> 00:30:30,000
Ah, look at that.

549
00:30:30,000 --> 00:30:31,000
It's magnificent.

550
00:30:31,000 --> 00:30:33,000
I love these old military buildings.

551
00:30:34,000 --> 00:30:40,000
The historic 480 foot long Big Event Behemoth Fort Mason Center.

552
00:30:41,000 --> 00:30:44,000
Fort Mason Center is perfect for us for several reasons.

553
00:30:44,000 --> 00:30:50,000
At over 480 feet long, there's plenty of room for a fired bullet to come to rest.

554
00:30:50,000 --> 00:30:54,000
Because it's enclosed, there's no wind to worry about affecting our bullet.

555
00:30:54,000 --> 00:30:56,000
And then lastly, it's perfectly level.

556
00:30:56,000 --> 00:31:04,000
So with the gun rest in place at one end of the room, Adam's first job is to make sure it's exactly 36 inches off the floor.

557
00:31:06,000 --> 00:31:08,000
And firing level.

558
00:31:08,000 --> 00:31:11,000
I'm going to fire a bullet to that target 20 feet away.

559
00:31:11,000 --> 00:31:14,000
Now, within that 20 feet, the bullet's not going to drop at all.

560
00:31:14,000 --> 00:31:22,000
So as long as the bullet hole in that target is the exact same height off the ground as the barrel, I know I've got a perfectly level bullet.

561
00:31:23,000 --> 00:31:24,000
Seating in the ground.

562
00:31:25,000 --> 00:31:26,000
Seating the gun rest.

563
00:31:26,000 --> 00:31:30,000
Firing in 3, 2, 1.

564
00:31:35,000 --> 00:31:38,000
Dude, I'd say that is absolutely perfect right on our laser line.

565
00:31:39,000 --> 00:31:40,000
That gun's firing level.

566
00:31:41,000 --> 00:31:42,000
Works for me.

567
00:31:43,000 --> 00:31:48,000
With the fired bullet rig sorted for now, Jamie rolls out the other half of the experiment.

568
00:31:49,000 --> 00:32:00,000
This is my bullet drop rate and the key component is this electromagnet right here because it'll hold on to my bullet and then on cue, it'll drop the bullet.

569
00:32:01,000 --> 00:32:10,000
Okay, we've got all the sensors we need and all the equipment we need to time the exact amount of time it takes a bullet both to be dropped from 36 inches and to be fired from 36 inches off the ground.

570
00:32:11,000 --> 00:32:15,000
And we could simply compare those two times like we did with the paintball.

571
00:32:15,000 --> 00:32:17,000
But that's not good enough for us.

572
00:32:18,000 --> 00:32:19,000
For we have a bigger vision.

573
00:32:20,000 --> 00:32:26,000
We want to see that drop bullet hit the ground in the spot the fired bullet will be skipping off.

574
00:32:27,000 --> 00:32:28,000
That's what we're about to set up.

575
00:32:29,000 --> 00:32:30,000
That's right folks.

576
00:32:30,000 --> 00:32:34,000
This time both halves of the experiment are going to happen at the same time.

577
00:32:35,000 --> 00:32:44,000
So before rolling the drop rig 360 feet down the room, the boys just want to make sure their little synchronizing system is going to work.

578
00:32:45,000 --> 00:32:52,000
Simultaneous firing and bullet drop test in three, two, one.

579
00:32:56,000 --> 00:32:58,000
Let's see how it looked on high speed.

580
00:32:59,000 --> 00:33:02,000
Where the mythbusters quickly discover they have a problem.

581
00:33:03,000 --> 00:33:05,000
Let's look back at the timing about when the light goes up.

582
00:33:06,000 --> 00:33:12,000
While the gun and the timing LED go off together, the dropped bullet decides to delay its journey south.

583
00:33:13,000 --> 00:33:15,000
It sits on that electromagnet for a while.

584
00:33:16,000 --> 00:33:17,000
Yeah.

585
00:33:18,000 --> 00:33:20,000
Do you think there's any residual magnetism or something like that?

586
00:33:22,000 --> 00:33:28,000
If you look at this high speed shot of the bullet on the electromagnet, you'll notice it hangs out for 65 milliseconds.

587
00:33:29,000 --> 00:33:33,000
That tells me there's a lot of residual magnetism in the electromagnet itself even though it's turned off.

588
00:33:34,000 --> 00:33:36,000
And it's no good as a mechanism for our drop.

589
00:33:37,000 --> 00:33:39,000
We've got to rebuild a mechanism and we've got to rebuild it fast.

590
00:33:43,000 --> 00:33:51,000
Out of the quarry, the Knock Your Socks Off Squad have wisely taken themselves to higher ground and way out of the blast zone.

591
00:33:52,000 --> 00:33:54,000
Our blast zone is set up way, way, way over there.

592
00:33:55,000 --> 00:34:00,000
But we've decided to come really, really far back to make sure all mythbusters big and tiny are perfectly safe.

593
00:34:01,000 --> 00:34:07,000
Alright, this is Knock Your Socks Off using a 500 pound explosion.

594
00:34:08,000 --> 00:34:11,000
Everybody look alive. Here we go in three, two, one.

595
00:34:12,000 --> 00:34:13,000
What?

596
00:34:20,000 --> 00:34:21,000
Whoa!

597
00:34:30,000 --> 00:34:31,000
That was awesome!

598
00:34:32,000 --> 00:34:33,000
Wow!

599
00:34:34,000 --> 00:34:41,000
Remember, to confirm this myth, the team needs to find a sockless foot in a critical zone of human survivability.

600
00:34:43,000 --> 00:34:44,000
Whoa!

601
00:34:45,000 --> 00:34:47,000
Look at the size of that crater!

602
00:34:48,000 --> 00:34:49,000
Oh wait, here's a sock?

603
00:34:50,000 --> 00:34:52,000
Oh my god, there's a foot inside!

604
00:34:53,000 --> 00:34:56,000
It's still in there. That's disgusting.

605
00:34:57,000 --> 00:35:00,000
No, that's definitely not blowing your socks up.

606
00:35:01,000 --> 00:35:05,000
But a closer look at the blast zone reveals some explosive results.

607
00:35:06,000 --> 00:35:07,000
Check it out! No socks!

608
00:35:08,000 --> 00:35:09,000
What distance is? What are they?

609
00:35:09,000 --> 00:35:11,000
25 foot and this is 15 feet.

610
00:35:12,000 --> 00:35:17,000
Well, they finally managed to knock some socks off. But would a human be walking away?

611
00:35:18,000 --> 00:35:21,000
Yeah, you're probably not going to survive this if your socks came off.

612
00:35:22,000 --> 00:35:23,000
Wait, here's the pressure disc. Let's see what it says.

613
00:35:24,000 --> 00:35:25,000
Okay, 25 feet.

614
00:35:26,000 --> 00:35:27,000
That's blown.

615
00:35:28,000 --> 00:35:35,000
And a double check of the discs confirms that under 35 feet away, this bang would have sent a mere mortal to Kingdom come.

616
00:35:35,000 --> 00:35:39,000
So that's not survivable, that doesn't count.

617
00:35:40,000 --> 00:35:45,000
But at the minimum survivable radius of 45 feet, yep, they're still on.

618
00:35:46,000 --> 00:35:49,000
We've got 45, we've got 55 and the socks are still on.

619
00:35:50,000 --> 00:35:53,000
So we have no survivability at the front, but we lost a few socks.

620
00:35:54,000 --> 00:35:56,000
And then as you get to the zone of survivability, we still have our socks on.

621
00:35:57,000 --> 00:35:59,000
I think that gives us both of our criteria for calling this one busted.

622
00:36:00,000 --> 00:36:03,000
Yeah, this is totally busted. I mean, if your socks do get blown off, you're pretty much dead.

623
00:36:03,000 --> 00:36:06,000
Yeah, you wouldn't be walking away from that.

624
00:36:07,000 --> 00:36:08,000
This was cool though.

625
00:36:09,000 --> 00:36:10,000
You might say it was a blast.

626
00:36:11,000 --> 00:36:20,000
Next, the roller coaster ride to physics fame has Adam and Jamie both dazzled.

627
00:36:21,000 --> 00:36:23,000
I think this might be the shop we've been looking for.

628
00:36:24,000 --> 00:36:25,000
And baffle.

629
00:36:26,000 --> 00:36:28,000
We're not even seeing the pins start to move.

630
00:36:34,000 --> 00:36:35,000
Here we go.

631
00:36:36,000 --> 00:36:40,000
Mythbusters and World Firsts go together like ham and eggs.

632
00:36:43,000 --> 00:36:44,000
Wow.

633
00:36:45,000 --> 00:36:46,000
There's the Pycrete boat.

634
00:36:47,000 --> 00:36:48,000
King of the world.

635
00:36:49,000 --> 00:36:50,000
Breaking glass.

636
00:36:52,000 --> 00:36:53,000
And the lead balloon.

637
00:36:54,000 --> 00:36:56,000
You know, if someone says it's impossible, we just take it as a challenge.

638
00:36:58,000 --> 00:37:01,000
Now, the Mythbusters are testing our real doozy.

639
00:37:01,000 --> 00:37:03,000
Everything's hot, ready to go.

640
00:37:04,000 --> 00:37:06,000
Bullet shot versus bullet dropped.

641
00:37:07,000 --> 00:37:10,000
But a malingering magnet is holding up the show.

642
00:37:11,000 --> 00:37:14,000
As soon as it's released, it's just staying there.

643
00:37:15,000 --> 00:37:18,000
But do you think Adam's going to let something like that stand in his way?

644
00:37:20,000 --> 00:37:21,000
Awesome. That works.

645
00:37:22,000 --> 00:37:23,000
Oh no.

646
00:37:24,000 --> 00:37:26,000
So, the electromagnetic is gone. It's on the scrap heap.

647
00:37:27,000 --> 00:37:30,000
We've got a new little solenoid in there which will whoop, get out of the way and let the bullet drop.

648
00:37:31,000 --> 00:37:35,000
What we've got to do is try it once, get our timings right, confirm them and we should be ready to do this test.

649
00:37:37,000 --> 00:37:40,000
So the new simultaneous release system is ready for a test fire.

650
00:37:42,000 --> 00:37:46,000
Alright, simultaneous release in three, two, one.

651
00:37:52,000 --> 00:37:54,000
Alright, let's see how it did on high speed.

652
00:37:55,000 --> 00:37:58,000
But once again, there's a timing problem.

653
00:37:58,000 --> 00:38:00,000
Solenoid's way too slow.

654
00:38:01,000 --> 00:38:02,000
Yep.

655
00:38:03,000 --> 00:38:04,000
It's not letting go.

656
00:38:05,000 --> 00:38:12,000
The most difficult thing about this whole experiment is getting the fired bullet and the dropped bullet to become airborne at exactly the same time.

657
00:38:13,000 --> 00:38:20,000
And we can't tolerate even a few milliseconds of variation in this mix to make the result that we want to see happen.

658
00:38:21,000 --> 00:38:22,000
It's hard.

659
00:38:23,000 --> 00:38:24,000
Now there's an understatement.

660
00:38:25,000 --> 00:38:26,000
So cue the brainstorm.

661
00:38:26,000 --> 00:38:29,000
We're not even seeing the pins start to move.

662
00:38:31,000 --> 00:38:34,000
It gave us the problem that we currently have which is that it's late.

663
00:38:35,000 --> 00:38:38,000
Having spent the past four hours trying to sort out the solenoid.

664
00:38:39,000 --> 00:38:40,000
Look, let's do this twice.

665
00:38:42,000 --> 00:38:45,000
The boys are now staring failures square in the face.

666
00:38:46,000 --> 00:38:49,000
And all it is is about figuring out some way to mechanically push between these two.

667
00:38:50,000 --> 00:38:53,000
Until Jamie snatches victory from the jaws of defeat.

668
00:38:54,000 --> 00:38:57,000
You have a hinge that you pull in the metal.

669
00:38:58,000 --> 00:38:59,000
Yeah, that's what I meant.

670
00:39:00,000 --> 00:39:03,000
It needs to be some sort of a little bitty catch that is on its edge.

671
00:39:04,000 --> 00:39:05,000
It could make a clip like that.

672
00:39:06,000 --> 00:39:13,000
He adds a small metal clip to the trigger to delay the gun the miniscule milliseconds needed to match the solenoid.

673
00:39:15,000 --> 00:39:16,000
Everything's hot. Let's do it.

674
00:39:23,000 --> 00:39:28,000
And after a few test fires at a bit of fine tuning, it works.

675
00:39:29,000 --> 00:39:30,000
Pull up these guns.

676
00:39:32,000 --> 00:39:33,000
Oh, it's good. It's good.

677
00:39:34,000 --> 00:39:37,000
It's one third of a millisecond difference.

678
00:39:38,000 --> 00:39:39,000
Wow.

679
00:39:40,000 --> 00:39:41,000
That's freaking perfect.

680
00:39:42,000 --> 00:39:43,000
Let's go do this full scale.

681
00:39:44,000 --> 00:39:45,000
Okay.

682
00:39:46,000 --> 00:39:50,000
Which means rolling up the room 360 feet to stake out a drop zone.

683
00:39:50,000 --> 00:39:54,000
Right about there. That's where they were landing out in the shooting range.

684
00:39:54,000 --> 00:39:56,000
So this is where I expect them to land here.

685
00:39:57,000 --> 00:39:58,000
Okay.

686
00:39:59,000 --> 00:40:10,000
Adam lays down a runway of white paper so the high speed camera will clearly see and measure both bullets at the same time, in the same place and in the same shot.

687
00:40:12,000 --> 00:40:15,000
All we need now in the drop zone is Jamie's drop rig.

688
00:40:16,000 --> 00:40:20,000
So the boys can take a shot at physics history.

689
00:40:22,000 --> 00:40:24,000
All right, dude. You ready to do this for real?

690
00:40:25,000 --> 00:40:27,000
I think we'll hit it on the first shot.

691
00:40:27,000 --> 00:40:28,000
Really?

692
00:40:28,000 --> 00:40:29,000
Oh, yeah.

693
00:40:29,000 --> 00:40:31,000
You never make predictions. That's awesome.

694
00:40:32,000 --> 00:40:34,000
Bullet drop versus fire.

695
00:40:35,000 --> 00:40:37,000
In three, two, one.

696
00:40:46,000 --> 00:40:52,000
But from 360 feet away, the boys can't see exactly where the fired bullet landed.

697
00:40:52,000 --> 00:40:53,000
Let's go see where it hit.

698
00:40:54,000 --> 00:40:58,000
So Adam takes a one wheeled wide down the room to check out the drop zone.

699
00:41:01,000 --> 00:41:02,000
Wow.

700
00:41:03,000 --> 00:41:05,000
And the results are simply ripping.

701
00:41:06,000 --> 00:41:07,000
Can't get much closer than that.

702
00:41:08,000 --> 00:41:09,000
I can't wait to see the high speed.

703
00:41:09,000 --> 00:41:14,000
So, dude, this bullet carved a streak right under the drop zone.

704
00:41:17,000 --> 00:41:21,000
I think this might be the shot we've been looking for.

705
00:41:22,000 --> 00:41:25,000
In real time, it's impossible to tell what happened.

706
00:41:27,000 --> 00:41:31,000
Until Adam analyzes the high speed and crunches the numbers.

707
00:41:32,000 --> 00:41:38,000
3677 minus 30915 equals 238 divided by six.

708
00:41:40,000 --> 00:41:45,000
Dude, the difference is 39.6 milliseconds.

709
00:41:46,000 --> 00:41:49,000
Which means it's less than the human eye can make out.

710
00:41:50,000 --> 00:41:57,000
So after days of brain teasing tests, the mythbusters can claim a world first for themselves.

711
00:41:58,000 --> 00:42:01,000
And a victory for physics.

712
00:42:03,000 --> 00:42:06,000
Let me put 39.6 milliseconds into some perspective for you.

713
00:42:07,000 --> 00:42:11,000
When you go to the movies and watch a projected celluloid film on the screen,

714
00:42:11,000 --> 00:42:13,000
you know that that film is made up of individual images, right?

715
00:42:14,000 --> 00:42:18,000
What you might not have known is that it takes 24 of those per second to make up the film that you're watching.

716
00:42:18,000 --> 00:42:21,000
So each one is on screen for exactly 1.24th of a second.

717
00:42:21,000 --> 00:42:24,000
But you don't notice that because it's faster than your eye can register.

718
00:42:24,000 --> 00:42:29,000
Well, that 1.24th of a second is actually longer than 39.6 milliseconds.

719
00:42:29,000 --> 00:42:32,000
That's how close those two bullets were.

720
00:42:33,000 --> 00:42:35,000
Two bullets, one drop, one fire.

721
00:42:36,000 --> 00:42:39,000
Amazingly, they ended up in the same place at the same time.

722
00:42:42,000 --> 00:42:46,000
Dude, this myth was every bit as much fun to test as I was hoping it would be.

723
00:42:47,000 --> 00:42:49,000
And I gotta say, even though the physics textbooks had it right,

724
00:42:49,000 --> 00:42:53,000
I love the fact that we did it full size with real unmodified bullets.

725
00:42:53,000 --> 00:42:56,000
I bet no one has ever tried that before.

726
00:42:56,000 --> 00:42:57,000
I think they're right.

727
00:42:57,000 --> 00:43:00,000
And whether it was ball bearings or bullets dropped or fired,

728
00:43:00,000 --> 00:43:02,000
they all hit the ground at the same time.

729
00:43:02,000 --> 00:43:07,000
Yup. Gravity, man. It's not just a good idea. It's the law.

730
00:43:07,000 --> 00:43:08,000
Confirmed.

731
00:43:08,000 --> 00:43:09,000
Confirmed.