[00:00.00]Say, do you like mystery stories? [00:03.30]Well we have one for you. [00:05.64]The concept: relativity. That strange fantastic relationship between time, distance, and mass. [00:14.84]Before we're finished, I think you'll agree that truth is stranger than the strangest fiction. [00:20.11]Why do the stars shine? [00:22.37]Why does the galaxy light up? [00:24.82]E equals MC squared [00:28.12]That is the engine that lights up the stars [00:33.26]Energy turns into mass [00:37.24]E equals MC squared - [00:39.99]That is the secret of the stars [00:46.76]Now listen carefully: [00:49.62]The faster you move [00:51.53]THe heavier you get [00:53.48]The energy of motion turns into M, your mass [00:56.83]Energy of motion [00:57.92]Energy equals Mass times the speed of light squared [01:01.83]An awful lot of energy [01:03.78]For a tiny amount of mass [01:06.10]Light travels at the same speed [01:08.10]No matter how you look at it [01:10.30]No matter how I move, relative to you, [01:12.20]Light travels at the same speed [01:14.27]No matter who is doing the measurement [01:16.30]And no matter what direction you are moving [01:18.12]The speed of light is the same [01:20.30]No matter what direction, or how fast [01:22.45]As you travel faster [01:24.53]Time slows down [01:26.71]Everything slows down [01:28.81]Time slows down when you move [01:30.48]Time passes at a different rate [01:32.73]Clocks run slow [01:34.60]It's a monumental shift in how we see the world [01:38.81]The beauty, the majesty, [01:40.79]The power of the universe [01:42.98]Into a single equation [01:47.17]E equals MC squared - [01:51.50]That is the engine that lights up the stars [01:55.53]Energy turns into mass [01:59.44]E equals MC squared - [02:02.24]That is the secret of the stars [02:04.21]It's a beautiful piece of science [02:06.51]It's a beautifuly elegant theory [02:08.53]It's a beautiful piece of science [02:11.43]A planet like the Earth is kept in orbit [02:13.29]Because it follows curves [02:15.46]In the spatial fabric caused [02:17.56]By the sun's presence [02:19.70]Space and time are bent by stars and planets [02:23.74]As things move through this curved space, they bend [02:29.52]Now all of this is illustration of the fact [02:31.74]that time and space are linked together. [02:36.26]As you're moving through bent and curved space and time, [02:40.46]You feel like you feel a force [02:42.25]You feel like you feel a force [02:43.99]As you're moving through bent and curved space and time, [02:48.60]You feel like you feel a force [02:50.59]That force is gravity [02:52.41]The beauty, the majesty, [02:54.62]The power of the universe [02:56.64]Into a single equation [03:00.91]E equals MC squared - [03:04.80]That is the engine that lights up the stars [03:09.13]Energy turns into mass [03:13.28]E equals MC squared - [03:15.68]That is the secret of the stars [03:19.69]That is the secret of the stars [03:23.75]That is the secret of the stars [03:27.75]That is the secret of the stars [03:32.30]That is the secret of the stars...