Perhaps you ’ve noticed all the fuss this week over Albert Einstein and his famous worldwide theory of relativity , which turn 100 days old . Who better to give you a coup d’oeil into what the theory is all about than a Time Lord — the 10th Doctor himself ?
In this sorcerous animation , David Tennant give you a whirlwind tour of the central concepts of general relativity : objects with mass curve space - clock time , and this gives rise to what we sense as sobriety . And since space and meter are unified , if space can warp , so can time : the bigger the curve , the dense time hang . In theory , at least , place - time can warp so much that wormhole can form , creating a shortcut connecting two otherwise distant part of the world . ( The practiced Doctor knows all about that . )
What ’s nice about this exceptional TV is that it does n’t stop there . universal relativity might call for a few tweaks in light of the 1998 find that not only is our universe expanding , it ’s expanding at an ever - increase rate . That ’s why physicists today invoke sinister push and morose matter as a possible account reproducible with the GR ’s prediction .
As Tennant notes , physicists have been invest general theory of relativity to the trial for a century now , and a unexampled harvest of experimentation will put the theory to the tryout yet again , hopefully with unequivocal results . “ If it succeeds again , physicist will party . If they line up its limits and it last fails , they ’ll party too . Physicists are funny like that . ”
Bonus : Inhis annual Thanksgiving post , Caltech physicist Sean Carroll gives thanks for the numerical basis for curved space - clock time : Riemannian Geometry . Since we ’re celebrating the 100th anniversary of oecumenical Einstein’s theory of relativity , he reasons , “ it make sense to honor the epoch-making progress in mathematics that directly enable Einstein ’s epoch-making advance in our understanding of space - sentence . ”
[ via IFLScience ]
General relativityPhysicsScience
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