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Um professor do MIT, Max Tegmark, ensina a teoria da relatividade de Einstein ao som do "Yellow Submarine" dos Beatles...A letra pode aqui ser seguida:SPECIAL RELATIVITYRömer measured the speed of light,and something basic just wasn’t right.because Michaelson and Morleyshowed that aether fit data poorly.We jump to 1905.In Einstein’s brain, ideas thrive:“The laws of nature must be the samein every inertial frame”We all believe in relativity, relativity, relativity.Yes we all believe in relativity, 8.033, relativity.Einstein’s postulates implythat planes are shorter when they fly.Their clocks are slowed by time dilation,and look warped from aberration.Cos theta-prime is cos theta minus beta ... over one minus beta cos theta.Yes we all believe in relativity, 8.033, relativity.With the Lorentz transformation,we calculate the relationbetween Chris’s and Zoe’s frame,but all invariants, they are the same.Like B dot E and B-squared minus E-squared,... and the rest mass squared which is E-squared minus p-squared.’cos we all believe in relativity, 8.033, relativity.Soon physicists had a proclivityfor using relativity.But nukes made us all scaredbecause E = mc2.Everything is relative, even simultaneity,and soon Einstein’s become a de facto physics deity.’cos we all believe in relativity, 8.033, relativity.GENERAL RELATIVITYBut Einstein had another dream,and in nineteen sixteenhe made a deep unificationbetween gravity and acceleration.He said physics ain’t hard at allas long as you are in free fall,’cos our laws all stay the samein a locally inertial frame.And he called it general relativity, relativity, relativity.And we all believe in relativity, 8.033, relativity.If towards a black hole you falltides will make you slim tall,but your friends won’t see you entera singularity at the center,because it will look to themlike you got stuck at radius 2M.But you get squished, despite this balking,and then evaporate, says Stephen Hawking.We all believe in relativity, relativity, relativity.Yes we all believe in relativity, 8.033, relativity.We’re in an expanding spacewith galaxies all over the place,and we’ve learned from Edwin Hubblethat twice the distance makes redshift doubleWe can with confidence converseabout the age of our universe.Rival theories are now mootthanks to Penzias, Wilson, Mather & Smoot.We all live in an expanding universe, expanding universe, expanding universe.Yes we all live in an expanding universe, expanding universe, expanding universe.But what’s the physics of creation?There’s a theory called inflationby Alan Guth and his friends,but the catch is that it never ends,making a fractal multiversewhich makes some of their colleagues curse.Yes there’s plenty left to figure outlike what reality is all about about.but at least we believe in relativity, relativity, relativity.Yes we all believe in relativity, 8.033, relativity.