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Spacetime is the idea that the universe is 4-dimensional, but what exactly is a dimension? Let's get figure it out by making a better ...

What exactly is spacetime? In this video, we explain spacetime in ridiculously simple words — from the X, Y, Z coordinates that ...

Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath (Unreleased videos, ...

In 1919, Arthur Eddington led an expedition to observe a total solar eclipse, confirming that light passing near the Sun is deflected ...

Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime How many times can I half ...

Thank you to Raycon for supporting PBS. Go to https://www.buyraycon.com/spacetime for up to 30% off your order, plus free ...

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A visual and musical journey to the edge of our universe, visualizing the fabric of space-time in order to study its dynamics and ...

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To study subjects like this more in depth, go to: https://brilliant.org/arvinash -- you can sign up for free! And the first 200 people will ...

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What are the consequences of playing with the SPACE-TIME CONTINUUM? On this explainer, Neil deGrasse Tyson and comic ...

View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie Space is ...

What is the deepest level of reality? In this Quanta explainer, Vijay Balasubramanian, a physicist at the University of Pennsylvania, ...

Are wormholes real or are they just magic disguised as physics and maths? And if they are real how do they work and where can ...

Thanks to Radiacode for sponsoring this video. Use the promo code "PBS" to get an exclusive 10% discount at: ...

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What is a Lorentz transformation? How do we turn within space-time? Why is the speed of light invariant? All these answers in 15 ...

Relativity comes in different flavors, as it happens. We spent some time looking at Einstein's special relativity, so now it's time for ...

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info ...