1
00:00:00,000 --> 00:00:02,000
What's going on here?

2
00:00:02,000 --> 00:00:04,000
It's the mainframe. It's the mainframe!

3
00:00:31,000 --> 00:00:33,000
What is error?

4
00:00:39,000 --> 00:00:42,000
What is solution?

5
00:00:47,000 --> 00:00:48,000
Revisit.

6
00:00:48,000 --> 00:00:49,000
Revisit.

7
00:00:50,000 --> 00:00:52,000
Revisit.

8
00:01:00,000 --> 00:01:01,000
Revisit.

9
00:01:17,000 --> 00:01:22,000
Well, Jamie, since 2002, you know, we've had our fair share of mottos that have helped define this show.

10
00:01:22,000 --> 00:01:23,000
I mean, there was...

11
00:01:23,000 --> 00:01:24,000
One in doubt.

12
00:01:25,000 --> 00:01:26,000
C4.

13
00:01:26,000 --> 00:01:27,000
Ha ha.

14
00:01:29,000 --> 00:01:31,000
And who could forget?

15
00:01:31,000 --> 00:01:33,000
Holy crap! Run!

16
00:01:33,000 --> 00:01:34,000
Run! Run!

17
00:01:36,000 --> 00:01:42,000
And then, of course, there's the classic, iconic failure is always an option.

18
00:01:44,000 --> 00:01:46,000
Well, we do screw up a lot.

19
00:01:46,000 --> 00:01:50,000
Yes, but one of the things I love that we do on this show is if we make a major mistake,

20
00:01:50,000 --> 00:01:53,000
we are willing to try a new methodology and to test it again.

21
00:01:53,000 --> 00:01:55,000
And that's what this whole episode is about.

22
00:01:55,000 --> 00:01:58,000
We are tackling fan complaints pretty much for the last time.

23
00:01:58,000 --> 00:01:59,000
What do we got?

24
00:01:59,000 --> 00:02:03,000
Well, later we're going to test two Mythbuster icons that fans said we got wrong.

25
00:02:03,000 --> 00:02:04,000
One is, what is bulletproof?

26
00:02:04,000 --> 00:02:07,000
And three, two, one!

27
00:02:10,000 --> 00:02:12,000
And what is bombproof?

28
00:02:14,000 --> 00:02:16,000
Holy ****!

29
00:02:16,000 --> 00:02:18,000
But first, remember San Francisco Drift?

30
00:02:18,000 --> 00:02:19,000
Sure.

31
00:02:23,000 --> 00:02:24,000
Yeah, baby.

32
00:02:24,000 --> 00:02:28,000
Right, so in that episode we proved beyond the shadow of a doubt that on a regular road surface,

33
00:02:28,000 --> 00:02:31,000
drifting is not faster than regular driving really fast.

34
00:02:31,000 --> 00:02:37,000
But fans said that if we'd done that test on dirt, we would have come to a completely opposite result.

35
00:02:37,000 --> 00:02:39,000
So, it's time to break out our drifting moves.

36
00:02:39,000 --> 00:02:40,000
Yes, it is.

37
00:02:41,000 --> 00:02:42,000
Oh, here we go.

38
00:02:43,000 --> 00:02:45,000
When Adam and Jamie first slid for science...

39
00:02:47,000 --> 00:02:48,000
Oh my God!

40
00:02:48,000 --> 00:02:50,000
Wow!

41
00:02:50,000 --> 00:02:54,000
They proved that drifting is never faster than regular driving.

42
00:02:56,000 --> 00:03:00,000
But by conducting all of their tests on tarmac, fans cried foul.

43
00:03:03,000 --> 00:03:11,000
So in a suitably dusty destination, it's all systems go on a final season drifting duo.

44
00:03:12,000 --> 00:03:14,000
See, this looks perfect.

45
00:03:14,000 --> 00:03:15,000
Perfect.

46
00:03:15,000 --> 00:03:18,000
Yeah, lots of slipping and sliding, huh?

47
00:03:18,000 --> 00:03:19,000
Let's do it.

48
00:03:20,000 --> 00:03:25,000
I'm standing in a quarry in Ione, California, and behind me is a lake you might recognize

49
00:03:25,000 --> 00:03:28,000
because we've blown a lot of stuff up there.

50
00:03:28,000 --> 00:03:29,000
We've blown up boats.

51
00:03:32,000 --> 00:03:34,000
We've even blown up sharks.

52
00:03:37,000 --> 00:03:41,000
However, we have never tested a driving myth up here, and that ends today,

53
00:03:41,000 --> 00:03:47,000
because surrounding this lake are a bunch of beautiful flat clay surfaces perfect for drifting on dirt.

54
00:03:47,000 --> 00:03:49,000
We're going to race, we've got to need a course.

55
00:03:49,000 --> 00:03:51,000
We're going to put one together.

56
00:03:53,000 --> 00:03:57,000
Yep, before driving into the dust, that is our start line.

57
00:03:57,000 --> 00:04:04,000
The guys must first plot out a path that will let them put this myth to the ultimate test.

58
00:04:04,000 --> 00:04:08,000
If we're going to test drifting versus not drifting, we're going to have to have a course

59
00:04:08,000 --> 00:04:13,000
that has both curves and straight aways that can really put the car to the test.

60
00:04:13,000 --> 00:04:21,000
In total, their course is nearly two miles of twists and turns that will challenge their driving skills to the max.

61
00:04:21,000 --> 00:04:24,000
So, what's the plan?

62
00:04:24,000 --> 00:04:29,000
Now remember that the last time we tested drifting, we concluded that straight driving was faster.

63
00:04:29,000 --> 00:04:31,000
Dude, that's a result. That's beautiful.

64
00:04:31,000 --> 00:04:36,000
People kept writing us and saying on a dirt track drifting will be faster, and that's what we're testing.

65
00:04:36,000 --> 00:04:44,000
Jamie is the control. He's doing the straight driving, attempting to make it around this track as fast as possible without drifting.

66
00:04:44,000 --> 00:04:49,000
I will be doing the opposite. I'm going to be doing this entire friggin' thing sideways if I can.

67
00:04:51,000 --> 00:04:53,000
Right there. Stop right there.

68
00:04:53,000 --> 00:04:59,000
So first up is the non-drifting control, a.k.a. James Franklin Heineman.

69
00:04:59,000 --> 00:05:02,000
First official timing run. Control.

70
00:05:02,000 --> 00:05:06,000
Five, four, three, two, one, go!

71
00:05:11,000 --> 00:05:14,000
Jamie will do two pedal to the metal laps.

72
00:05:17,000 --> 00:05:21,000
And his best time will be the benchmark that Adam has to beat.

73
00:05:23,000 --> 00:05:24,000
Yeah, baby!

74
00:05:24,000 --> 00:05:29,000
But for an accurate comparison, it's crucial that Jamie doesn't drift at all.

75
00:05:29,000 --> 00:05:31,000
And there he goes.

76
00:05:31,000 --> 00:05:34,000
Which on dirt like this is downright difficult.

77
00:05:34,000 --> 00:05:38,000
To not drift at all, I'm simply taking the racing line.

78
00:05:38,000 --> 00:05:42,000
That means braking as late as possible as I approach a bend.

79
00:05:44,000 --> 00:05:50,000
Taking that bend as fast as I can without losing traction, and then accelerating out of it like there's no tomorrow.

80
00:05:50,000 --> 00:05:57,000
Reaching a top speed of 52 miles an hour without ever losing traction at a turn.

81
00:05:58,000 --> 00:06:00,000
Jamie comes home in...

82
00:06:00,000 --> 00:06:02,000
Two minutes, 24 seconds.

83
00:06:02,000 --> 00:06:05,000
A quick reset later, and it's lap two of two.

84
00:06:05,000 --> 00:06:08,000
Three, two, one, go!

85
00:06:13,000 --> 00:06:16,000
Every time he takes off, it's like a film about the dust bowl.

86
00:06:16,000 --> 00:06:22,000
Once again, Jamie pushes the car to the limit through turns big and small.

87
00:06:22,000 --> 00:06:25,000
Let's cut to the inside of the car, see if Jamie's having fun.

88
00:06:28,000 --> 00:06:31,000
And is time?

89
00:06:31,000 --> 00:06:33,000
Okay, here he comes.

90
00:06:33,000 --> 00:06:34,000
Seems a bit faster.

91
00:06:34,000 --> 00:06:37,000
Okay, he's going for it, and...

92
00:06:37,000 --> 00:06:39,000
Two minutes, 22.

93
00:06:39,000 --> 00:06:41,000
Man, that is fast.

94
00:06:43,000 --> 00:06:48,000
It's not only fast, but by never drifting, Jamie's lap is the perfect control.

95
00:06:48,000 --> 00:06:54,000
With my skill and with that car, I'm as fast as I'm gonna get.

96
00:06:54,000 --> 00:07:01,000
But before Adam tries to better it, there's another revisit to redo.

97
00:07:01,000 --> 00:07:05,000
Well, Jamie, it's time to go back into some very familiar territory for you and I.

98
00:07:05,000 --> 00:07:07,000
What is bulletproof?

99
00:07:07,000 --> 00:07:08,000
Why is that?

100
00:07:08,000 --> 00:07:14,000
Well, first we have an amazing fan submission story about supposedly bulletproof fish tanks.

101
00:07:16,000 --> 00:07:18,000
That I've got to try.

102
00:07:18,000 --> 00:07:19,000
Yeah, I totally agree.

103
00:07:19,000 --> 00:07:24,000
But first, it's a return to the very first item we ever shot at, and that is this.

104
00:07:24,000 --> 00:07:26,000
A simple brass lighter.

105
00:07:26,000 --> 00:07:28,000
Which turned out to be not bulletproof at all.

106
00:07:28,000 --> 00:07:35,000
Not even a little bit, but fans insist that we got this wrong, that there is a circumstance under which a lighter can stop a slug.

107
00:07:35,000 --> 00:07:37,000
Well, I guess it's now or never.

108
00:07:50,000 --> 00:07:55,000
Shooting at Stuff has been our bread and butter on Mythbusters over the years.

109
00:08:00,000 --> 00:08:04,000
More specifically, we have shot hundreds of objects to find out and answer the question,

110
00:08:04,000 --> 00:08:08,000
what is and isn't bulletproof from belt buckles?

111
00:08:08,000 --> 00:08:10,000
Oh, it went all the way through.

112
00:08:10,000 --> 00:08:13,000
But look at what it did to the buckle. It caught it like a catcher's mitt.

113
00:08:13,000 --> 00:08:14,000
Two cars.

114
00:08:17,000 --> 00:08:18,000
That didn't suck.

115
00:08:18,000 --> 00:08:19,000
To pizzas.

116
00:08:20,000 --> 00:08:22,000
Oh, check out my new bulletproof vest, man!

117
00:08:22,000 --> 00:08:28,000
But it all began with this. The humble, fun-based lighter.

118
00:08:28,000 --> 00:08:34,000
And 12 years ago, we found that these are not at all bulletproof by putting a 22-round cleanly through it.

119
00:08:34,000 --> 00:08:35,000
We're going hot?

120
00:08:35,000 --> 00:08:41,000
It was way back in 2004 that the guys lacerated a lighter.

121
00:08:41,000 --> 00:08:42,000
Looks like you hit it pretty good.

122
00:08:43,000 --> 00:08:50,000
But fans were furious because an article like this alleged that a lighter did stop a slug in a botched burglary.

123
00:08:50,000 --> 00:08:57,000
So it's time for a final season two over to retest at decade-long dispute.

124
00:08:57,000 --> 00:09:05,000
We're using a 22-caliber rifle firing a full metal-jacketed round with a muzzle velocity of 1,440 feet per second.

125
00:09:05,000 --> 00:09:08,000
But will the guys really get a different result?

126
00:09:08,000 --> 00:09:09,000
What's that for?

127
00:09:09,000 --> 00:09:10,000
You'll love this.

128
00:09:10,000 --> 00:09:12,000
That's provoking our lighter.

129
00:09:14,000 --> 00:09:15,000
All right.

130
00:09:15,000 --> 00:09:18,000
To find out, they're cranking the coverage to the max.

131
00:09:18,000 --> 00:09:24,000
In the early days of Mythbusters, if we wanted to get a better viewpoint on a bullet going through a lighter, for instance,

132
00:09:24,000 --> 00:09:28,000
all we really had as our option was to just freeze frame our video.

133
00:09:28,000 --> 00:09:31,000
But the last 13 years have seen an incredible amount of advancement.

134
00:09:31,000 --> 00:09:34,000
This is today's ultra-high-speed camera.

135
00:09:34,000 --> 00:09:40,000
It will record this bullet shot at 28,000 frames per second in HD.

136
00:09:40,000 --> 00:09:46,000
This is our slow-poke high-speed camera, which will record it at 6,900 frames per second,

137
00:09:46,000 --> 00:09:49,000
all to give us a better vantage point on what's actually happening.

138
00:09:49,000 --> 00:09:52,000
With all cameras rolling, it's showtime.

139
00:09:53,000 --> 00:09:54,000
All right.

140
00:09:54,000 --> 00:10:00,000
Our first shot, guy with a lighter in his pocket versus a direct shot from a 22-caliber rifle firing a full metal-jacketed round.

141
00:10:00,000 --> 00:10:01,000
You ready?

142
00:10:01,000 --> 00:10:06,000
Firing in three, two, one.

143
00:10:09,000 --> 00:10:11,000
It's a bull-jack on the brass.

144
00:10:11,000 --> 00:10:13,000
I think that was a perfect shot.

145
00:10:13,000 --> 00:10:16,000
But it's bad news for Ballistics gel buster.

146
00:10:16,000 --> 00:10:19,000
So that bullet made it all the way through.

147
00:10:19,000 --> 00:10:25,000
There's cotton from the lighter in the wounds.

148
00:10:25,000 --> 00:10:28,000
I'm going to go out on a limb and say, this guy is dead.

149
00:10:28,000 --> 00:10:30,000
He's dead, Jim.

150
00:10:30,000 --> 00:10:33,000
So that experiment worked beautifully.

151
00:10:33,000 --> 00:10:34,000
Jamie pulled the trigger.

152
00:10:34,000 --> 00:10:41,000
The bullet exited the rifle at about 1,400 feet per second, and dang, it hit the lighter dead center.

153
00:10:41,000 --> 00:10:47,000
But then, just like in 2004, the bullet kept going through Buster and almost came out the other side of him.

154
00:10:47,000 --> 00:10:48,000
There we go.

155
00:10:48,000 --> 00:10:51,000
I mean, the lighter did virtually nothing.

156
00:10:51,000 --> 00:10:53,000
So how come so many people told us we got this wrong?

157
00:10:53,000 --> 00:10:57,000
How come there's a story saying that some guys later did stop a slug?

158
00:10:57,000 --> 00:10:59,000
But we can think of only one thing.

159
00:10:59,000 --> 00:11:03,000
I mean, the mythical slug that we're talking about just can't have been a direct hit.

160
00:11:03,000 --> 00:11:07,000
It had to have bounced off something else on its way to the lighter.

161
00:11:07,000 --> 00:11:09,000
And that is where we're going next.

162
00:11:09,000 --> 00:11:15,000
We are about to enlist the help of famous Irish Ballistics expert, Rick O'Shea.

163
00:11:15,000 --> 00:11:19,000
Later on the guy's last ever revisit.

164
00:11:19,000 --> 00:11:20,000
Fire in the hole!

165
00:11:20,000 --> 00:11:23,000
Adam and Jamie won Big Boom.

166
00:11:23,000 --> 00:11:25,000
Wow, holy s***.

167
00:11:25,000 --> 00:11:30,000
But next, will the lighter bounce back from the brink?

168
00:11:30,000 --> 00:11:32,000
Hey!

169
00:11:37,000 --> 00:11:47,000
Since 2004, the Mythbusters have tested the bullet-stopping capabilities of 35 everyday items.

170
00:11:49,000 --> 00:11:51,000
Holy Cremoli.

171
00:11:51,000 --> 00:11:57,000
But does internet gossip like this prove their very first foray was false?

172
00:11:57,000 --> 00:11:59,000
Well, no.

173
00:11:59,000 --> 00:12:04,000
Because this episode's retest replicated that first result.

174
00:12:04,000 --> 00:12:06,000
Right in the middle of his heart.

175
00:12:06,000 --> 00:12:08,000
But all is not lost for the lighter.

176
00:12:08,000 --> 00:12:11,000
Now it's time to set up a ricocheting bullet.

177
00:12:11,000 --> 00:12:15,000
Now, we have some experience with ricocheting bullets, I mean, on purpose.

178
00:12:15,000 --> 00:12:20,000
We did an episode a while back in which we found out several vital things about ricocheting.

179
00:12:20,000 --> 00:12:22,000
And I see a hole, and me.

180
00:12:22,000 --> 00:12:26,000
The best material to ricochet a bullet off of is this, a concrete paver.

181
00:12:26,000 --> 00:12:31,000
So we're going to set this up at an angle that helps our bullet hit our dude.

182
00:12:31,000 --> 00:12:39,000
The theory is that by bouncing off the paver, the bullet's speed will be so reduced that a lighter may then stop it.

183
00:12:39,000 --> 00:12:41,000
I think that puts us in the ballpark.

184
00:12:41,000 --> 00:12:48,000
But because ricochets are notoriously unpredictable, they're starting without the lighter in place.

185
00:12:48,000 --> 00:12:51,000
This could be a little tricky to get this all dialed in.

186
00:12:51,000 --> 00:12:55,000
So we've come up with a setup that hopefully it'll make it easier.

187
00:12:55,000 --> 00:13:02,000
Starting with a gun which is mounted here, and it's aimed at our ricochet brick here.

188
00:13:02,000 --> 00:13:09,000
Hopefully it'll bounce off of this and then into this piece of cardboard here, leave them a mark,

189
00:13:09,000 --> 00:13:14,000
which will tell us where to put our dummy with the lighter on it without a whole lot of messing around.

190
00:13:14,000 --> 00:13:17,000
Alright, sir, we're all set up for the ricochet. You ready to shoot?

191
00:13:17,000 --> 00:13:18,000
Yeah.

192
00:13:18,000 --> 00:13:23,000
For test one, the paver is at an angle of 45 degrees relative to the rifle.

193
00:13:23,000 --> 00:13:28,000
Firing in three, two, one.

194
00:13:28,000 --> 00:13:31,000
But the bullets know where to be seen.

195
00:13:31,000 --> 00:13:35,000
It didn't go through our card. Let's take a look at high speed and find out where that bullet went.

196
00:13:35,000 --> 00:13:36,000
Okay.

197
00:13:36,000 --> 00:13:41,000
Oh, wow. Okay. There it is. It reflected at two-part an angle.

198
00:13:41,000 --> 00:13:45,000
Yeah, so we need to shallow that out.

199
00:13:45,000 --> 00:13:52,000
Our first shot into the 45-degree paver ended up bouncing the bullet so much that it flew straight past our cardboard target.

200
00:13:52,000 --> 00:13:57,000
So we're just going to shallow the angle of the brick, try it again, see what happens.

201
00:13:57,000 --> 00:14:02,000
Yep, for test two, Adam reduces the angle to 25 degrees.

202
00:14:02,000 --> 00:14:06,000
Three, two, one.

203
00:14:06,000 --> 00:14:08,000
Wow!

204
00:14:08,000 --> 00:14:14,000
This time the bullet did hit the target, but only after breaking to bits.

205
00:14:15,000 --> 00:14:17,000
I count four holes.

206
00:14:17,000 --> 00:14:22,000
So next, they shallow the angle again to just 15 degrees.

207
00:14:22,000 --> 00:14:25,000
And three, two, one.

208
00:14:25,000 --> 00:14:35,000
And just like that, they get the ricochet there out, a bounce that not only hits the target, but also stays in one piece.

209
00:14:35,000 --> 00:14:36,000
That's perfect.

210
00:14:36,000 --> 00:14:39,000
And there's one giant hole and one dent.

211
00:14:39,000 --> 00:14:42,000
That means the guys can bring Buster back.

212
00:14:42,000 --> 00:14:44,000
Don't overstress yourself, old man.

213
00:14:44,000 --> 00:14:50,000
And line him up so that his lighter is directly behind the previous ricochet's path.

214
00:14:50,000 --> 00:14:53,000
That's actually perfect.

215
00:14:53,000 --> 00:14:56,000
Then the guys sub in a clean paver.

216
00:14:56,000 --> 00:14:57,000
Beauty.

217
00:14:57,000 --> 00:15:01,000
And they're all set, but a little apprehensive.

218
00:15:01,000 --> 00:15:09,000
And here it is for the money. However unlikely, we are going to bounce a .22 caliber full-metal jacket bullet off of a paving stone

219
00:15:09,000 --> 00:15:14,000
into a lighter and see if it goes through or bounces off.

220
00:15:14,000 --> 00:15:16,000
Okay, into the lighter, hopefully.

221
00:15:16,000 --> 00:15:20,000
In three, two, one.

222
00:15:21,000 --> 00:15:24,000
Hey! Hey!

223
00:15:24,000 --> 00:15:30,000
The lighter bounced off the dude, which means something hit the lighter, which really should have been our bullet.

224
00:15:30,000 --> 00:15:35,000
Incredibly, their bullet ricocheted into the lighter on their very first try.

225
00:15:35,000 --> 00:15:37,000
Hey!

226
00:15:37,000 --> 00:15:39,000
It's almost like we knew what we were doing.

227
00:15:39,000 --> 00:15:42,000
But did the lighter save Buster's life?

228
00:15:42,000 --> 00:15:45,000
Hey!

229
00:15:45,000 --> 00:15:46,000
Dude!

230
00:15:46,000 --> 00:15:52,000
It is precisely where we expected it to hit, and it did hit.

231
00:15:52,000 --> 00:15:57,000
And clearly, the bullet bounced off the lighter.

232
00:15:57,000 --> 00:16:00,000
Well, that is not only beautiful, but quite definitive.

233
00:16:00,000 --> 00:16:04,000
Take a straight shot at a lighter with a .22, and it goes right through that sucker.

234
00:16:04,000 --> 00:16:10,000
Let that bullet bounce off some concrete at even a shallow angle, and no, it bounces right off.

235
00:16:10,000 --> 00:16:18,000
I would never challenge the man or woman that told me this lighter saved their lives, and now we know how such a thing might be possible.

236
00:16:19,000 --> 00:16:22,000
It's a result to vindicate the viewers.

237
00:16:22,000 --> 00:16:25,000
Ten years on, and a lighter can't stop a bullet.

238
00:16:25,000 --> 00:16:29,000
Provided that bullet has first bounced.

239
00:16:29,000 --> 00:16:33,000
And that gives this myth a brand new conclusion.

240
00:16:35,000 --> 00:16:42,000
With one myth back from the dead, it's back to drifting on dirt.

241
00:16:42,000 --> 00:16:46,000
Where Jamie clocked a super fast lap.

242
00:16:46,000 --> 00:16:48,000
Look at him go.

243
00:16:48,000 --> 00:16:51,000
Without ever losing traction.

244
00:16:51,000 --> 00:16:55,000
Two minutes, 22 seconds.

245
00:16:55,000 --> 00:17:03,000
Look, it's worth restating that we stand 100% behind the results of the first time we conducted this test.

246
00:17:03,000 --> 00:17:09,000
Hollywood's always leading you to believe that sliding around a corner is faster than driving around a corner,

247
00:17:09,000 --> 00:17:14,000
and we found definitively that driving is faster on asphalt.

248
00:17:15,000 --> 00:17:19,000
But fans wrote and said we would come to a totally different result if we tested it on dirt.

249
00:17:19,000 --> 00:17:21,000
And so that is what we are doing here.

250
00:17:21,000 --> 00:17:30,000
We are driving this dirt course while driving, and also testing that against drifting to find out which one is faster, and whether or not the fans are right.

251
00:17:31,000 --> 00:17:36,000
Remember, Jamie's fastest non-drifting lap was two minutes, 22.

252
00:17:39,000 --> 00:17:42,000
But with Adam ready to drift like a pro.

253
00:17:42,000 --> 00:17:48,000
Okay, three, two, one, go.

254
00:17:48,000 --> 00:17:51,000
Can he beat that benchmark?

255
00:17:56,000 --> 00:17:57,000
Adam's off.

256
00:17:57,000 --> 00:17:58,000
Now throttle.

257
00:17:59,000 --> 00:18:01,000
Yeah, that's it.

258
00:18:01,000 --> 00:18:11,000
And immediately he's using a complex combination of steering, throttle and brake to lose traction with the dirt and drift.

259
00:18:11,000 --> 00:18:14,000
And use the power to steer the car, yeah baby.

260
00:18:14,000 --> 00:18:16,000
Through every turn.

261
00:18:16,000 --> 00:18:19,000
Yeah, that's what I'm talking about.

262
00:18:21,000 --> 00:18:27,000
Because the myth is that drifting through every turn is the fastest way to drive.

263
00:18:27,000 --> 00:18:30,000
Oh yeah, that's it.

264
00:18:30,000 --> 00:18:31,000
But is it?

265
00:18:31,000 --> 00:18:33,000
I took some finish line.

266
00:18:36,000 --> 00:18:37,000
How did I do there?

267
00:18:37,000 --> 00:18:38,000
224.

268
00:18:38,000 --> 00:18:40,000
224?

269
00:18:40,000 --> 00:18:43,000
That's almost identical to your time.

270
00:18:43,000 --> 00:18:44,000
Ha ha ha ha.

271
00:18:44,000 --> 00:18:46,000
Alright, I'm going to try again.

272
00:18:46,000 --> 00:18:47,000
Okay.

273
00:18:53,000 --> 00:18:54,000
Yes.

274
00:18:55,000 --> 00:18:59,000
For his second and final lap, Adam again puts pedal to the metal.

275
00:18:59,000 --> 00:19:02,000
Oh ho, yeah.

276
00:19:02,000 --> 00:19:06,000
This is freaking live.

277
00:19:06,000 --> 00:19:07,000
Oh dude.

278
00:19:07,000 --> 00:19:10,000
But this time, will he hammer the Heinemann?

279
00:19:12,000 --> 00:19:14,000
Yeah, that's it.

280
00:19:14,000 --> 00:19:16,000
Yeah, come on.

281
00:19:16,000 --> 00:19:20,000
Or will this myth be done and dusted?

282
00:19:25,000 --> 00:19:28,000
That felt so good.

283
00:19:28,000 --> 00:19:30,000
That felt so awesome.

284
00:19:30,000 --> 00:19:31,000
How did I do?

285
00:19:31,000 --> 00:19:32,000
223.

286
00:19:32,000 --> 00:19:34,000
No way.

287
00:19:34,000 --> 00:19:36,000
That is awesome.

288
00:19:36,000 --> 00:19:38,000
Ha ha ha ha.

289
00:19:38,000 --> 00:19:41,000
Alright, so after kicking up all that dust, where do we stand?

290
00:19:41,000 --> 00:19:46,000
Jamie's best time driving this course without drifting, 2 minutes 22 seconds.

291
00:19:46,000 --> 00:19:50,000
My best time driving this course drifting to heck and back.

292
00:19:50,000 --> 00:19:52,000
2 minutes 23 seconds.

293
00:19:52,000 --> 00:19:55,000
They are functionally identical times.

294
00:19:55,000 --> 00:20:01,000
Yep, overall the two times from two equally skilled drivers were statistically the same.

295
00:20:01,000 --> 00:20:05,000
But closer inspection of the footage reveals a wrinkle.

296
00:20:08,000 --> 00:20:13,000
So over the entire course, Jamie's and my lap times were identical, but check this out.

297
00:20:13,000 --> 00:20:18,000
On this gentle turn, we've superimposed Jamie's driving car and my drifting car.

298
00:20:18,000 --> 00:20:23,000
And as you can see, Jamie makes the turn faster because I lose traction in the drift.

299
00:20:23,000 --> 00:20:25,000
But now, look at the sharp turn.

300
00:20:25,000 --> 00:20:29,000
Here, I'm faster because I don't lose as much momentum.

301
00:20:29,000 --> 00:20:32,000
So yes, there are occasions when drifting on dirt is quicker,

302
00:20:32,000 --> 00:20:37,000
but the idea that it's always quicker no matter what, which is what we're testing,

303
00:20:37,000 --> 00:20:40,000
well, I guess that's for the rapid.

304
00:20:41,000 --> 00:20:45,000
So once upon a time, there was a myth that drifting was faster than driving,

305
00:20:45,000 --> 00:20:49,000
and we tested this on asphalt and found it to be busted.

306
00:20:49,000 --> 00:20:53,000
But fans gave us a new myth they said drifting is faster than driving.

307
00:20:53,000 --> 00:20:57,000
If the surface that you're driving on is actually dirt like this, we have tested it.

308
00:20:57,000 --> 00:20:58,000
What have we found?

309
00:20:58,000 --> 00:20:59,000
Busted.

310
00:20:59,000 --> 00:21:02,000
Let's get out of here, preferably without too much drift.

311
00:21:02,000 --> 00:21:04,000
Still to come.

312
00:21:04,000 --> 00:21:06,000
I love these robotic fish.

313
00:21:06,000 --> 00:21:08,000
There's fish in the firing line.

314
00:21:10,000 --> 00:21:12,000
And a boom with a view.

315
00:21:20,000 --> 00:21:24,000
In this final season special, what's next?

316
00:21:24,000 --> 00:21:26,000
We're going to be testing the car.

317
00:21:26,000 --> 00:21:28,000
We're going to be testing the car.

318
00:21:28,000 --> 00:21:32,000
In this final season special, what's next?

319
00:21:34,000 --> 00:21:36,000
So I understand we're ending with a bang.

320
00:21:36,000 --> 00:21:40,000
Yes, it's time to cue the explosions with a return to what is bomb proof.

321
00:21:40,000 --> 00:21:44,000
We've tested this in the past, and fans didn't say we got any specific test wrong.

322
00:21:44,000 --> 00:21:47,000
Instead, they have a brand new twist on this, which I love.

323
00:21:47,000 --> 00:21:52,000
They claim that the best protection against a bomb is another bomb,

324
00:21:52,000 --> 00:21:57,000
specifically that if two explosions that are identical in size go off simultaneously,

325
00:21:57,000 --> 00:22:00,000
their shock waves will cancel out where they meet.

326
00:22:00,000 --> 00:22:03,000
And if you're standing in that location, you'll be totally fine.

327
00:22:03,000 --> 00:22:04,000
Good story.

328
00:22:04,000 --> 00:22:06,000
I thought so. It's time to blow some stuff up.

329
00:22:06,000 --> 00:22:07,000
One.

330
00:22:09,000 --> 00:22:11,000
What is bomb proof?

331
00:22:13,000 --> 00:22:14,000
They're not first, we're good.

332
00:22:14,000 --> 00:22:17,000
Has been a fan favorite for years.

333
00:22:20,000 --> 00:22:26,000
So no final season revisit would be complete without a bomb proof kaboom.

334
00:22:28,000 --> 00:22:30,000
My favorite place to blow stuff up.

335
00:22:30,000 --> 00:22:32,000
Mine too. Let's get set up.

336
00:22:33,000 --> 00:22:36,000
Now to test this myth about explosive cancellation,

337
00:22:36,000 --> 00:22:40,000
we could have just gone to the bomb range and set off two blasts without much fuss.

338
00:22:40,000 --> 00:22:45,000
But instead we've come back to I own and that's because we want to do the test above water.

339
00:22:45,000 --> 00:22:46,000
Why?

340
00:22:46,000 --> 00:22:48,000
Well, this myth is about a bomb.

341
00:22:48,000 --> 00:22:50,000
It's about a bomb.

342
00:22:50,000 --> 00:22:52,000
It's about a bomb.

343
00:22:52,000 --> 00:22:55,000
And that's because we want to do the test above water.

344
00:22:55,000 --> 00:22:56,000
Why?

345
00:22:56,000 --> 00:22:58,000
Well, this myth is all about shock waves.

346
00:22:58,000 --> 00:23:00,000
And we found in an earlier experiment.

347
00:23:00,000 --> 00:23:01,000
One.

348
00:23:02,000 --> 00:23:06,000
That explosions above water give you a great visual image of the shock wave.

349
00:23:06,000 --> 00:23:10,000
Not only is the shock wave itself more visible in the air,

350
00:23:10,000 --> 00:23:13,000
but it also leaves a really clear pattern in the water.

351
00:23:14,000 --> 00:23:17,000
Not only should the lake showcase the shock wave,

352
00:23:17,000 --> 00:23:21,000
it's also good for picturing the two boom plan.

353
00:23:22,000 --> 00:23:27,000
Now soon enough in this episode, you are going to get to see some absolutely gorgeous high speed shots

354
00:23:27,000 --> 00:23:32,000
of the blast pressure waves from an explosion moving outwards across this beautiful lake.

355
00:23:32,000 --> 00:23:36,000
But until then, let me use these stones to tell you what we're going to see.

356
00:23:36,000 --> 00:23:39,000
The first explosion will be a single five pound blast

357
00:23:39,000 --> 00:23:43,000
and we'll get to see the blast pressure wave move out from that like this.

358
00:23:43,000 --> 00:23:46,000
See those ripples moving outwards from where I dropped the pebble?

359
00:23:46,000 --> 00:23:48,000
That equates to our blast pressure wave.

360
00:23:48,000 --> 00:23:52,000
And our pressure transducers will be reading the intensity of that pressure front

361
00:23:52,000 --> 00:23:55,000
as it moves away from the epicenter of the explosion.

362
00:23:55,000 --> 00:23:59,000
Once we have that data in hand, it will be time to do two simultaneous explosions

363
00:23:59,000 --> 00:24:01,000
symbolized by these two rocks.

364
00:24:03,000 --> 00:24:07,000
Now watch as their ripples move towards each other and then collide.

365
00:24:07,000 --> 00:24:12,000
It's that collision of the two blast pressure waves that we are going to be looking at the data.

366
00:24:12,000 --> 00:24:16,000
If this myth is true, we should see a significant drop in the intensity

367
00:24:16,000 --> 00:24:19,000
of those pressure fronts when they meet.

368
00:24:19,000 --> 00:24:25,000
Well to find out, Jamie's replacing the rocks with something altogether more dangerous.

369
00:24:25,000 --> 00:24:32,000
So these are explosives, that's five pounds of TNT and these are our floating platforms

370
00:24:32,000 --> 00:24:34,000
with a hole right in the middle.

371
00:24:34,000 --> 00:24:36,000
There'll be a rod comes up three feet.

372
00:24:36,000 --> 00:24:37,000
That sits on top of it.

373
00:24:37,000 --> 00:24:39,000
Bob's your uncle.

374
00:24:40,000 --> 00:24:49,000
Meanwhile, Adam's building the data collection device upon which the whole experiment depends.

375
00:24:49,000 --> 00:24:54,000
So first up, I'm making an a-foot by one-foot platform that will float on the surface of the lake.

376
00:24:56,000 --> 00:25:01,000
Then I'm going to drill seven holes at one foot intervals across the length of the platform.

377
00:25:01,000 --> 00:25:03,000
Another good use for a cowboy hat.

378
00:25:03,000 --> 00:25:08,000
Into each of those holes, I am putting a six foot length of schedule 40 pipe.

379
00:25:08,000 --> 00:25:09,000
Awesome.

380
00:25:09,000 --> 00:25:16,000
At the very top of each piece of pipe will sit pressure transducers which will measure the exact last pressure of our explosions.

381
00:25:16,000 --> 00:25:17,000
One down.

382
00:25:17,000 --> 00:25:25,000
Attached to each of the transducers is a wire that will emerge from the pipes carrying some lovely pieces of data for us to analyze.

383
00:25:25,000 --> 00:25:28,000
So the rig is certainly complex.

384
00:25:30,000 --> 00:25:31,000
I think we're fine.

385
00:25:31,000 --> 00:25:34,000
But its job is surprisingly simple.

386
00:25:34,000 --> 00:25:39,000
Once in position on the water, the guys will set off a single blast.

387
00:25:39,000 --> 00:25:47,000
The rig 7 PCB transducers will then record baseline pressure readings as the blast wave passes by.

388
00:25:47,000 --> 00:26:00,000
Next comes blast 2, an identical double explosion where the rig will help reveal if the pressure readings where the two waves meet goes up, down, or sees no change at all.

389
00:26:02,000 --> 00:26:05,000
Add with the assembly at last ready to roll.

390
00:26:05,000 --> 00:26:06,000
Cool.

391
00:26:06,000 --> 00:26:10,000
The guys must next position it in the lake for the single blast control.

392
00:26:10,000 --> 00:26:14,000
A procedure that's a very delicate operation.

393
00:26:14,000 --> 00:26:16,000
Well that was interesting.

394
00:26:16,000 --> 00:26:21,000
Jamie and I are out setting up for the first experiment when all of a sudden the wind picks up.

395
00:26:21,000 --> 00:26:23,000
Oh for f*** sake.

396
00:26:26,000 --> 00:26:30,000
We actually turned out to have gotten caught in a little tiny tornado.

397
00:26:32,000 --> 00:26:33,000
You alright?

398
00:26:33,000 --> 00:26:34,000
Yeah.

399
00:26:34,000 --> 00:26:35,000
That was...

400
00:26:35,000 --> 00:26:38,000
Oh! Felt like being smacked with a ton of bricks.

401
00:26:38,000 --> 00:26:41,000
All of a sudden I knew my hat was almost going off. Jamie's hat was going off.

402
00:26:41,000 --> 00:26:45,000
I've never seen that happen here since all the time we've been coming here.

403
00:26:45,000 --> 00:26:48,000
Yeah. That was weird.

404
00:26:48,000 --> 00:26:51,000
It's not what such a delicate operation needed.

405
00:26:51,000 --> 00:26:54,000
But it's not long before the rig is in place.

406
00:26:54,000 --> 00:26:55,000
It'll float.

407
00:26:58,000 --> 00:26:59,000
Cool.

408
00:26:59,000 --> 00:27:01,000
Next it's joined by the controls explosive.

409
00:27:01,000 --> 00:27:07,000
Five pounds of TNT positioned three feet above the water and five feet from the end of the rig.

410
00:27:07,000 --> 00:27:09,000
Awesome. Awesome.

411
00:27:09,000 --> 00:27:12,000
And with that it's time for the single boom benchmark.

412
00:27:14,000 --> 00:27:20,000
Fire in the hole! Fire in the hole! Fire in the hole!

413
00:27:20,000 --> 00:27:23,000
Alright, here we go. This is for real.

414
00:27:23,000 --> 00:27:30,000
Control explosion five pounds in three, two, one.

415
00:27:32,000 --> 00:27:33,000
Whoa!

416
00:27:34,000 --> 00:27:36,000
That was a crack!

417
00:27:36,000 --> 00:27:37,000
Yes.

418
00:27:42,000 --> 00:27:43,000
Dude!

419
00:27:44,000 --> 00:27:46,000
Well the sensor platform is still there.

420
00:27:46,000 --> 00:27:48,000
And our drone is still flying.

421
00:27:50,000 --> 00:27:52,000
That was intense.

422
00:27:54,000 --> 00:28:02,000
As far as control blasts go, that was as neat as you please.

423
00:28:02,000 --> 00:28:12,000
I don't mean neat in terms of tidy because no, Jamie is actually out there picking up the big chunks of EPP we left out there.

424
00:28:12,000 --> 00:28:15,000
But the explosion went off perfectly.

425
00:28:17,000 --> 00:28:21,000
And we got beautiful data from all seven of our sensors.

426
00:28:21,000 --> 00:28:23,000
That was awesome.

427
00:28:30,000 --> 00:28:33,000
In this final season, retro revisit.

428
00:28:34,000 --> 00:28:38,000
Adam and Jamie have confirmed that a lighter can stop a slug.

429
00:28:39,000 --> 00:28:40,000
Hey! Dude!

430
00:28:40,000 --> 00:28:43,000
But the shooting ain't done yet.

431
00:28:44,000 --> 00:28:50,000
Next up on What is Bulletproof, an often requested fan favorite that we somehow haven't gotten to yet, but that ends today.

432
00:28:50,000 --> 00:28:52,000
Here is the story.

433
00:28:52,000 --> 00:29:02,000
A man supposedly survived a point blank shotgun blast thanks to a 30 gallon fish tank positioned directly in between him and the shooter, which completely stopped the round.

434
00:29:02,000 --> 00:29:08,000
Now we don't know what kind of round was fired at the fish tank, so we're going to have to fire more than one.

435
00:29:08,000 --> 00:29:11,000
Get ready. Things are about to get fishy.

436
00:29:12,000 --> 00:29:17,000
Stand by for the guys last ever. What is Bulletproof Revisit?

437
00:29:17,000 --> 00:29:18,000
Awesome.

438
00:29:18,000 --> 00:29:20,000
Reason enough for Adam to go to town.

439
00:29:20,000 --> 00:29:24,000
Now just because we're going to shoot our fish tank doesn't mean we can't make it look nice.

440
00:29:24,000 --> 00:29:27,000
I'm going to do a little bit of interior decorating.

441
00:29:27,000 --> 00:29:29,000
First up, some graph.

442
00:29:29,000 --> 00:29:31,000
It's beautiful!

443
00:29:32,000 --> 00:29:36,000
Adam's following that Mythbusters mantra. I love it.

444
00:29:36,000 --> 00:29:39,000
That if it's worth doing, look, it totally working.

445
00:29:39,000 --> 00:29:41,000
It's worth overdoing.

446
00:29:41,000 --> 00:29:45,000
Meanwhile, Jamie's got the big gun.

447
00:29:45,000 --> 00:29:50,000
This gun right here is what this story is about. It's standard 12 gauge pump action shotgun.

448
00:29:50,000 --> 00:29:54,000
Now we're going to be running three separate experiments with three separate types of rounds.

449
00:29:54,000 --> 00:29:58,000
Bird shot, buck shot, and a deer slope.

450
00:29:58,000 --> 00:30:03,000
Because the guys like to end with a bang, they're starting with the least energetic round.

451
00:30:03,000 --> 00:30:07,000
The bird shot, which will be fired by Adam.

452
00:30:07,000 --> 00:30:10,000
Okay, here we go. The classic battle.

453
00:30:10,000 --> 00:30:13,000
Bird shot versus fish tank.

454
00:30:13,000 --> 00:30:17,000
And three, two, one.

455
00:30:20,000 --> 00:30:25,000
Well, I'll tell you on the next shot, I am going to wear sleeves because a bunch of stuff hit me.

456
00:30:25,000 --> 00:30:27,000
Yeah, I got a little mark there.

457
00:30:27,000 --> 00:30:30,000
Ironically, Adam's been hit.

458
00:30:30,000 --> 00:30:33,000
But Buster's not.

459
00:30:34,000 --> 00:30:36,000
Looks like he was safer than you were.

460
00:30:37,000 --> 00:30:42,000
The dummy is completely injury-free and the high speed shows why.

461
00:30:44,000 --> 00:30:50,000
So check this out. The bird shot blasts into the tank at 1,300 feet per second.

462
00:30:50,000 --> 00:30:57,000
But because each pilot weighs less than one gram, they're stopped by the water before they hit the back glass.

463
00:30:57,000 --> 00:31:03,000
That glass only breaks because of the shock wave caused by the blast itself.

464
00:31:04,000 --> 00:31:11,000
Meaning that Adam and the fish really did get more hurt than Buster.

465
00:31:13,000 --> 00:31:18,000
But with a brand new 30 gallon tank set up just like before.

466
00:31:18,000 --> 00:31:22,000
Here you go, my friees. I love these robotic fish.

467
00:31:22,000 --> 00:31:28,000
Will Buster be saved again when facing off against bird shots bigger brother?

468
00:31:28,000 --> 00:31:30,000
So what's going to happen with buckshot?

469
00:31:30,000 --> 00:31:35,000
Well, the lead pellets that are inside buckshot are the size of a 9mm round.

470
00:31:35,000 --> 00:31:40,000
So for my money, it's going to make it all the way through the tank and it may well actually penetrate our dummy.

471
00:31:40,000 --> 00:31:44,000
Well, with Jamie dressed to kill, it's time to find out.

472
00:31:45,000 --> 00:31:49,000
Flaring in 3, 2, 1.

473
00:31:52,000 --> 00:31:54,000
The back glass didn't even shatter.

474
00:31:57,000 --> 00:32:00,000
I don't even need to walk over there to tell that our guy's okay.

475
00:32:02,000 --> 00:32:09,000
Despite each pellet having more than 12 times the energy of bird shot, Buster's even more safe.

476
00:32:09,000 --> 00:32:11,000
And Adam has a theory as to why.

477
00:32:12,000 --> 00:32:17,000
How is it possible that our buckshot didn't even get through the back of our fish tank?

478
00:32:17,000 --> 00:32:19,000
I have a little bit of an explanation for this.

479
00:32:20,000 --> 00:32:23,000
What is ammunition designed to do? It's designed to harm flesh.

480
00:32:23,000 --> 00:32:25,000
And what is flesh made of?

481
00:32:25,000 --> 00:32:28,000
Well, it's a bit of gristle but mostly water.

482
00:32:28,000 --> 00:32:33,000
And water resists an impact in direct proportion to the speed of that impact.

483
00:32:33,000 --> 00:32:36,000
Faster the impact, faster water repels that energy.

484
00:32:36,000 --> 00:32:43,000
And that's why our buckshot loses almost all of its energy in the 12 inches of our fish tank.

485
00:32:43,000 --> 00:32:46,000
But we're not done yet. We have one more type of ammo to try.

486
00:32:48,000 --> 00:32:53,000
Yep, for the third and final test, it's the Big Daddy, the Deerslug.

487
00:32:53,000 --> 00:32:56,000
But will this be stopped even quicker again?

488
00:32:57,000 --> 00:33:04,000
Alright, here we go. This is Deerslug versus fish tank, the final chapter.

489
00:33:04,000 --> 00:33:07,000
Safety's off, range is hot.

490
00:33:09,000 --> 00:33:13,000
And three, two, one.

491
00:33:15,000 --> 00:33:19,000
Ha ha ha ha ha ha. All the way through.

492
00:33:20,000 --> 00:33:25,000
It's clear that this test caused way more carnage than the buckshot.

493
00:33:25,000 --> 00:33:30,000
But with no sign of the slug in the tank or in Buster...

494
00:33:31,000 --> 00:33:34,000
I don't see a slug in him.

495
00:33:34,000 --> 00:33:38,000
It's down to the spectacular high speeds to sort out the science.

496
00:33:40,000 --> 00:33:42,000
So I fired the Deerslug at the fish tank.

497
00:33:42,000 --> 00:33:44,000
And just like the other two types of ammo from the shotgun,

498
00:33:44,000 --> 00:33:49,000
the initial impact created this magnificent shockwave inside the fish tank.

499
00:33:51,000 --> 00:33:59,000
But uniquely along the three, the Deerslug not only broke but also pierced the back glass of our fish tank.

500
00:33:59,000 --> 00:34:06,000
But it's pretty clear on the high speed that as it does, it loses whatever remaining energy it had

501
00:34:06,000 --> 00:34:11,000
and then starts to move downwards instead of towards our ballistics gel dude.

502
00:34:11,000 --> 00:34:19,000
So I think based on this we've got to conclude that the slug also does not make it true a fish tank in any lethal fashion.

503
00:34:20,000 --> 00:34:25,000
And that's a conclusion that's even more concrete when Jamie does find the slug.

504
00:34:25,000 --> 00:34:29,000
Found it. This is that bullet after it hit.

505
00:34:29,000 --> 00:34:36,000
It spread it in this case flat as pancake and that sort of meant that it was like a drag shoot on that bullet as it moved through the water.

506
00:34:36,000 --> 00:34:41,000
It did break through the other side of the tank but really only just.

507
00:34:41,000 --> 00:34:48,000
Alright, time to tally up the results. What is bullet proof fish tanks?

508
00:34:48,000 --> 00:34:51,000
Did we prove that they're in fact bullet proof?

509
00:34:51,000 --> 00:34:54,000
If we're talking about shotguns, pretty much.

510
00:34:54,000 --> 00:34:56,000
Totally astonishing too I might add.

511
00:34:56,000 --> 00:34:57,000
Let's get out of here.

512
00:34:57,000 --> 00:34:58,000
Alright.

513
00:35:00,000 --> 00:35:02,000
Today we're going to be talking about the bullet proof.

514
00:35:02,000 --> 00:35:04,000
We're talking about shotguns pretty much.

515
00:35:04,000 --> 00:35:06,000
Totally astonishing too I might add.

516
00:35:06,000 --> 00:35:07,000
Let's get out of here.

517
00:35:07,000 --> 00:35:08,000
Alright.

518
00:35:11,000 --> 00:35:15,000
Next in What is Bomb Proof? Will there be fire in the hole?

519
00:35:15,000 --> 00:35:19,000
In three, two, one, go!

520
00:35:24,000 --> 00:35:30,000
After 14 years of guns and ammo, here's the final season shooting stats.

521
00:35:32,000 --> 00:35:37,000
Since 2002, the mythbusters have shot over 40 types of gun

522
00:35:41,000 --> 00:35:45,000
and fired more than half a million bullets.

523
00:35:49,000 --> 00:35:52,000
They've revisited what is bullet proof six times.

524
00:35:52,000 --> 00:35:55,000
Another reason to love pepperoni pizza.

525
00:35:58,000 --> 00:36:01,000
And proved once that Walter White was right.

526
00:36:01,000 --> 00:36:04,000
That was an adrenaline rush.

527
00:36:12,000 --> 00:36:15,000
One, two.

528
00:36:15,000 --> 00:36:18,000
Adam and Jamie are ending their final ever revisit.

529
00:36:18,000 --> 00:36:20,000
That was a crack.

530
00:36:20,000 --> 00:36:21,000
With a bang.

531
00:36:23,000 --> 00:36:27,000
They're testing whether two simultaneous explosions of the same size

532
00:36:27,000 --> 00:36:30,000
can really cancel each other out.

533
00:36:30,000 --> 00:36:33,000
And after test one, the control data is in.

534
00:36:33,000 --> 00:36:35,000
So the data was clean.

535
00:36:35,000 --> 00:36:42,000
The nearest sensor showed 135 psi and it evenly lowered to the last sensor at 25 psi.

536
00:36:42,000 --> 00:36:48,000
Now for the next test, instead of one blast, we're going to have two blasts on opposite sides

537
00:36:48,000 --> 00:36:51,000
going off at exactly the same time, the same distance.

538
00:36:51,000 --> 00:36:55,000
And those numbers, those pressure readings will change.

539
00:36:55,000 --> 00:36:57,000
How exactly we don't know?

540
00:36:57,000 --> 00:37:00,000
They could go down, they could go up, they could cancel each other out.

541
00:37:00,000 --> 00:37:02,000
But that's what we're looking for.

542
00:37:03,000 --> 00:37:06,000
To find out, the guys salvage what they can from test one.

543
00:37:06,000 --> 00:37:08,000
Three, four.

544
00:37:08,000 --> 00:37:09,000
That's good.

545
00:37:09,000 --> 00:37:10,000
Awesome.

546
00:37:10,000 --> 00:37:13,000
I love that we don't have to replace this.

547
00:37:13,000 --> 00:37:15,000
And begin to set up for test two.

548
00:37:15,000 --> 00:37:16,000
Good.

549
00:37:16,000 --> 00:37:19,000
But Adam's already got concerns.

550
00:37:19,000 --> 00:37:23,000
Look, we often make a joke on this show that failure is always an option.

551
00:37:23,000 --> 00:37:27,000
In this case, for this experiment, it's not.

552
00:37:27,000 --> 00:37:29,000
And allow me to explain.

553
00:37:29,000 --> 00:37:34,000
When we say failure is always an option, we're actually explaining that we have no bias as to how something turns out.

554
00:37:34,000 --> 00:37:39,000
So what we're really talking about is a failure of our expectations is always an option.

555
00:37:39,000 --> 00:37:42,000
Any result to result, that's for sure.

556
00:37:42,000 --> 00:37:46,000
But we can't survive a failure of our methodology.

557
00:37:46,000 --> 00:37:49,000
And in this case, the methodology for this experiment is everything.

558
00:37:49,000 --> 00:37:56,000
We have to have those two explosives go off simultaneously and perfectly equidistant from the center sensor

559
00:37:56,000 --> 00:37:58,000
in order to get the reading that we're looking for.

560
00:37:58,000 --> 00:38:03,000
If we don't get that, it's going to be a heavy-duty reset to try and get it again.

561
00:38:03,000 --> 00:38:10,000
To try to get two identical booms, the guys are using exactly the same quantity of explosive

562
00:38:10,000 --> 00:38:14,000
that's positioned perfectly equidistant from their data rig.

563
00:38:14,000 --> 00:38:20,000
And by using exactly the same length of detonation tube, they're leaving nothing to chance.

564
00:38:20,000 --> 00:38:23,000
Fire in the hole!

565
00:38:23,000 --> 00:38:25,000
But will that be enough?

566
00:38:25,000 --> 00:38:34,000
Okay, double explosion in three, two, one, go!

567
00:38:34,000 --> 00:38:46,000
Well, that was a bit of a cold shower. I pushed the button and nothing happened.

568
00:38:46,000 --> 00:38:50,000
Well, almost nothing. Actually, I did watch the spark travel down the tube,

569
00:38:50,000 --> 00:38:54,000
but when it got to the water's edge, it stopped, which means that we may have gotten some water.

570
00:38:54,000 --> 00:39:00,000
But what it really means, what it really means, is that somebody owes us a case of beer,

571
00:39:00,000 --> 00:39:02,000
because that's what that means in the bomb world.

572
00:39:03,000 --> 00:39:09,000
Rules aside, the guys quickly replace the dead tube, and then it's good for take two.

573
00:39:09,000 --> 00:39:12,000
Okay, here we go. Count it in, Mr. Heidemann.

574
00:39:12,000 --> 00:39:22,000
Okay, two blasts cancelling each other out. Maybe in three, two, one.

575
00:39:22,000 --> 00:39:25,000
Wow.

576
00:39:28,000 --> 00:39:30,000
I felt that one.

577
00:39:30,000 --> 00:39:33,000
It was a bone rounder.

578
00:39:34,000 --> 00:39:37,000
Holy ****!

579
00:39:37,000 --> 00:39:42,000
In real time, it's impossible to see if the experiment was a success,

580
00:39:42,000 --> 00:39:46,000
but the high speed shows it was exactly that.

581
00:39:53,000 --> 00:39:55,000
This is really, really beautiful.

582
00:39:55,000 --> 00:39:59,000
First of all, this camera angle is shooting at 4,000 frames per second.

583
00:40:01,000 --> 00:40:05,000
And you can actually see here from one frame to the next, boom.

584
00:40:05,000 --> 00:40:09,000
It's a perfectly simultaneous explosion. That's exactly what we were looking at.

585
00:40:09,000 --> 00:40:12,000
Now, there's some cool stuff as you advance through the frames.

586
00:40:12,000 --> 00:40:16,000
You can start to see the actual shock waves there, these two bubbles.

587
00:40:16,000 --> 00:40:19,000
And as they increase, the gray line here above the water,

588
00:40:19,000 --> 00:40:24,000
you can actually see the cross of the two bubbles intersecting.

589
00:40:24,000 --> 00:40:28,000
We have sensors in place that will tell us what's actually happening there.

590
00:40:28,000 --> 00:40:31,000
Is it increasing the power? Is it decreasing the power?

591
00:40:31,000 --> 00:40:33,000
I honestly have no idea.

592
00:40:33,000 --> 00:40:37,000
And I might be over-excited because I was just rattled by an explosion.

593
00:40:39,000 --> 00:40:42,000
But I think this is pretty awesome.

594
00:40:43,000 --> 00:40:46,000
Well, the good news is that the sensors survived.

595
00:40:46,000 --> 00:40:48,000
Got the data. You did? Got it.

596
00:40:48,000 --> 00:40:50,000
Dude, that's awesome.

597
00:40:50,000 --> 00:40:54,000
And once dissected, Adam's ready to divulge.

598
00:40:55,000 --> 00:40:59,000
Alright, Mr. Heidemann, we have actual data from that last blast,

599
00:40:59,000 --> 00:41:01,000
and it's beautiful. Do you want to hear it?

600
00:41:01,000 --> 00:41:02,000
Yes.

601
00:41:02,000 --> 00:41:07,000
Okay, so if you remember, right, we had seven sensors to catch the intersection between the two pressure waves.

602
00:41:08,000 --> 00:41:12,000
Remember for the first test, number four read 50 psi.

603
00:41:12,000 --> 00:41:13,000
Okay.

604
00:41:13,000 --> 00:41:16,000
Second test, you will not believe it's reading.

605
00:41:16,000 --> 00:41:17,000
Is it double?

606
00:41:17,000 --> 00:41:18,000
100 psi.

607
00:41:18,000 --> 00:41:20,000
Yes, it was right.

608
00:41:20,000 --> 00:41:21,000
Was that your prediction?

609
00:41:21,000 --> 00:41:24,000
Well, it's two energies and they intersected.

610
00:41:24,000 --> 00:41:25,000
Did you set it on camera?

611
00:41:25,000 --> 00:41:26,000
No.

612
00:41:26,000 --> 00:41:27,000
Oh, well then it doesn't count.

613
00:41:27,000 --> 00:41:29,000
I said it just now. I was going to bed.

614
00:41:29,000 --> 00:41:30,000
No, no, no.

615
00:41:30,000 --> 00:41:33,000
He never wants to give a prediction before the actual fact.

616
00:41:33,000 --> 00:41:35,000
Isn't that awesome?

617
00:41:35,000 --> 00:41:37,000
It's totally the opposite of cancelling each other out.

618
00:41:37,000 --> 00:41:39,000
It doubled the power.

619
00:41:40,000 --> 00:41:46,000
So we set out to test the myth that two identical explosions set off equidistant from each other

620
00:41:46,000 --> 00:41:50,000
would cancel each other out where their pressure waves intersected in the middle.

621
00:41:50,000 --> 00:41:52,000
Now what we found was the exact opposite.

622
00:41:52,000 --> 00:41:54,000
It actually doubled there.

623
00:41:54,000 --> 00:41:59,000
A lot of physics is not exactly intuitive, but in this case, I think it is

624
00:41:59,000 --> 00:42:04,000
because you've got twice the explosive power in the same vicinity right next to each other

625
00:42:04,000 --> 00:42:08,000
and it's not unlike a couple of hammers hitting.

626
00:42:08,000 --> 00:42:13,000
All that energy impacts right in the middle and that's a bad place to be.

627
00:42:17,000 --> 00:42:19,000
That one's pretty cleanly busted.

628
00:42:19,000 --> 00:42:22,000
Yep, busted with TNT.

629
00:42:22,000 --> 00:42:24,000
My ears are still ringing.

630
00:42:24,000 --> 00:42:26,000
I have hearing protection.