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Professor Dave Explains
The Future of Space Travel: Fusion Engines, Warp Drives, and Wormholes
Okay, we've all dreamed about exploring the universe and finding our own little cosmic vacation bungalow. But these places are really far, so how can we get there? Not the way we go through space now, that's just too slow. Are there...
Professor Dave Explains
Warped Spacetime, Gravitational Lensing, and Gravitational Waves (Corroborating General Relativity)
We learned a bit about general relativity and the curvature of spacetime, both earlier in this series, as well as in the modern physics course. But let's talk a bit more about the astronomical observations that corroborate this theory....
Physics Girl
Why are there giant concrete tunnels in the desert?
The Physics Girl team visited LIGO once again. This place is Dianna's obsession.
Dom Burgess
Is Time Travel Possible? Ring Laser - Every Think Part 3 of 3
Tipler Cylinders? Wormholes? Ring Lasers? Is it possible to travel BACK in time? In this action packed episode, Dom is hunted down by a government agent who wants to know how he made a time machine.
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Can we create...
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Can we create...
Curated Video
What Exactly is Spacetime? Explained in Ridiculously Simple Words
Spacetime, as a concept, is related to a space that consists of 4 dimensions instead of the regular 3-dimensional space. As early as 1905, Einstein proposed a now widely popular theory that the speed of light is independent of the motion...
Physics Girl
Is energy always conserved?
When light passes through the universe and is redshifted by the expansion of space itself, how is energy conserved? The stretched light has a longer wavelength and therefore a lower energy. Is energy conserved? If so, where does it go?
Zach Star
What if the universe had a higher dimensional twist in it?
What if the universe had a higher dimensional twist in it?
Dom Burgess
Is Time Travel Possible? Wormhole - Every Think Part 2 of 3
Tipler Cylinders? Wormholes? Ring Lasers? Is it possible to travel BACK in time? In this action packed episode, Dom is hunted down by a government agent who wants to know how he made a time machine.
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br/>Part 2
Dom...
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br/>Part 2
Dom...
Physics Girl
Craziest eclipses in the solar system
A total solar eclipse passed across North America on August 21, 2017. Are there other total solar eclipses in the solar system?
Professor Dave Explains
General Relativity: The Curvature of Spacetime
Relativity comes in different flavors, as it happens. We spent some time looking at special relativity, so now it's time for the general variety. This is all about the geometry of spacetime, which curves around massive objects. This was...
Zach Star
If higher dimensions exist, they aren't what you think - Exploring Worlds Beyond Our Own
If higher dimensions exist, they aren't what you think - Exploring Worlds Beyond Our Own
Dom Burgess
Is Time Travel Possible? Tipler Cylinder - Every Think Part 1 of 3
Tipler Cylinders? Wormholes? Ring Lasers? Is it possible to travel BACK in time? In this action packed episode, Dom is hunted down by a government agent who wants to know how he made a time machine.
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br/>Part 1
Dom is chased...
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br/>Part 1
Dom is chased...
Khan Academy
Khan Academy: Crash Course Big History: The Big Bang
Crash Course is a fast, funny, irreverent look at history beginning with the Big Bang Theory. In this episode, brothers John and Hank Green gives us their take on what makes Big History so darn important. [13:55]
Khan Academy
Khan Academy: Visualizing Multiple Newtonian Path Time Diagrams
Now that we know what path-time diagrams are, let's see what happens when we bring along a friend!
Khan Academy
Khan Academy: Intro to Special Relativity and Minkowski Spacetime Diagrams
Let's see how we can start to solve problems by introducing Minkowski spacetime diagrams. [13:43]