1 00:00:04,400 --> 00:00:02,750 so you want to visit a black hole you 2 00:00:06,170 --> 00:00:04,410 pack your bags you've updated your 3 00:00:07,400 --> 00:00:06,180 passport and you're basically ready to 4 00:00:09,860 --> 00:00:07,410 jump on a spaceship and blast off 5 00:00:19,099 --> 00:00:09,870 however before you do that I have just 6 00:00:20,210 --> 00:00:19,109 one piece of advice don't okay if you 7 00:00:21,800 --> 00:00:20,220 really must go 8 00:00:23,179 --> 00:00:21,810 I suppose you should at least know a few 9 00:00:25,550 --> 00:00:23,189 things about black holes before you 10 00:00:27,740 --> 00:00:25,560 leave first you should know exactly what 11 00:00:29,480 --> 00:00:27,750 a black hole is a black hole is a 12 00:00:31,460 --> 00:00:29,490 physical object in space just like 13 00:00:32,900 --> 00:00:31,470 everything else it's made up of a tiny 14 00:00:35,000 --> 00:00:32,910 but massive point for gravity and 15 00:00:36,950 --> 00:00:35,010 density are infinite a line beyond which 16 00:00:39,080 --> 00:00:36,960 everything including light can only fall 17 00:00:40,400 --> 00:00:39,090 into that tiny point and sometimes some 18 00:00:43,400 --> 00:00:40,410 glowing stuff will burning around it and 19 00:00:45,979 --> 00:00:43,410 maybe some radiation so basically here 20 00:00:49,549 --> 00:00:45,989 is kind of bad here is really bad and 21 00:00:51,619 --> 00:00:49,559 here is also black holes mostly come in 22 00:00:54,560 --> 00:00:51,629 two sizes don't ask me why we still 23 00:00:57,590 --> 00:00:54,570 aren't sure however a black hole is also 24 00:00:59,720 --> 00:00:57,600 not a lot of things it is not a hole a 25 00:01:01,549 --> 00:00:59,730 cosmic vacuum cleaner a portal to 26 00:01:04,100 --> 00:01:01,559 another dimension populated by unicorns 27 00:01:09,020 --> 00:01:04,110 in space potatoes and absolutely not a 28 00:01:10,550 --> 00:01:09,030 good place to vacation okay fine I guess 29 00:01:12,620 --> 00:01:10,560 next you'll need to know how to find a 30 00:01:14,030 --> 00:01:12,630 black hole though technically black 31 00:01:16,039 --> 00:01:14,040 holes could just sneak up behind you 32 00:01:18,590 --> 00:01:16,049 they likely won't the nearest known one 33 00:01:20,300 --> 00:01:18,600 is 3,000 light-years away anyway however 34 00:01:21,980 --> 00:01:20,310 if you were to go looking for a man 35 00:01:23,420 --> 00:01:21,990 there are a couple of good ways to find 36 00:01:24,800 --> 00:01:23,430 them first 37 00:01:26,539 --> 00:01:24,810 black holes tend to mess with their 38 00:01:28,429 --> 00:01:26,549 environment so you can sometimes use 39 00:01:30,260 --> 00:01:28,439 interesting clues such as a bunch of 40 00:01:32,300 --> 00:01:30,270 stuff opening what appears to be nothing 41 00:01:34,310 --> 00:01:32,310 and second as we mentioned before 42 00:01:36,319 --> 00:01:34,320 there's open glowing stuff orbiting 43 00:01:37,719 --> 00:01:36,329 around them caused by well when things 44 00:01:39,880 --> 00:01:37,729 get to coops 45 00:01:41,410 --> 00:01:39,890 so now that you found a black hole and 46 00:01:43,779 --> 00:01:41,420 clearly aren't listening to me saying 47 00:01:46,929 --> 00:01:43,789 not to go it's time for a few important 48 00:01:48,429 --> 00:01:46,939 safety considerations first of all the 49 00:01:50,700 --> 00:01:48,439 good news is that as long as you stay 50 00:01:53,469 --> 00:01:50,710 far away black doors are not that bad 51 00:01:55,569 --> 00:01:53,479 however as you get closer you need to 52 00:01:56,740 --> 00:01:55,579 keep a few things in mind the radiation 53 00:01:58,480 --> 00:01:56,750 near the black hole can be extremely 54 00:02:00,669 --> 00:01:58,490 deadly the chances of escape could 55 00:02:02,319 --> 00:02:00,679 slimmer the closer you get and if you 56 00:02:03,669 --> 00:02:02,329 get close enough you now have to worry 57 00:02:06,100 --> 00:02:03,679 about being stretched into a giant 58 00:02:07,990 --> 00:02:06,110 noodle and time getting really weird so 59 00:02:09,910 --> 00:02:08,000 unless you have great radiation shields 60 00:02:11,500 --> 00:02:09,920 a faster than light spaceship or your 61 00:02:14,949 --> 00:02:11,510 completely indestructible you should 62 00:02:16,930 --> 00:02:14,959 probably just stay away well that pretty 63 00:02:18,100 --> 00:02:16,940 much sums up black holes at least before 64 00:02:20,650 --> 00:02:18,110 things start getting pretty complicated 65 00:02:22,240 --> 00:02:20,660 but before you go for real please refer 66 00:02:23,650 --> 00:02:22,250 to the Handy brochure on your spacesuit 67 00:02:26,530 --> 00:02:23,660 pocket since there's quite a bit to