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As Albert Einstein's theory of general relativity turns 100 this month, many of us are still secretly wondering what on earth the theory really does/means.
Luckily for those of us who didn't pay attention in school, there's a video that explain all the letters and symbols behind the timey wimey concept in just three minutes.
And who better to explain "space time" and "warped time" than a Time Lord?
The video, created by animator Eoin Duffy and a team of writers, is narrated by David Tennant, who you know as the Tenth Doctor in Doctor Who and as the rather terrifying purple villain Zebediah Kilgrave in Netflix's Jessica Jones.
Watch the adorable and informative video below.
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