Today we’re talking about mass transfer. It doesn’t just apply to objects and fluids as a whole, but also to the individual molecules and components that make them up. We’ll see that transfers of mass need their own driving force,...

As theaters closed in the wake of the coronavirus pandemic, the creatives who populated their stages were plunged into a state of seemingly endless uncertainty. Aided by a delightful and metaphorically resonant piece of performance...

June 28 is Tau Day! Join SciShow as we celebrate circles by exploring the many uses of twice pi.

Perpetual motion machines - devices that can do work indefinitely without any external energy source - have captured many inventors' imaginations because they could totally transform our relationship with energy. There's just one...

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When a species evolves from living in water to living on land it’s called terrestrialization, and it’s not an easy task. Yet crabs keep making the jump from sea to shore. Why? And how do they do it?

Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things.... a thing? These questions continued to fascinate physicists in the modern era, leading Isaac Newton, Ernst...

Anthropologist Helen Fisher takes on a tricky topic – love – and explains its evolution, its biochemical foundations and its social importance. She closes with a warning about the potential disaster inherent in antidepressant abuse.

There is some super weird, noodley stuff inside neutron stars and scientists have found evidence that black holes can have strange geometries.

In this video Paul Andersen explains how the internal energy of a system can change as the internal structure of the system changes. An object model will not be able to account for the restoring forces and so a system model must be...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on inputs, processes and outputs in a system.

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System models - a representation o
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Interactions - reciprocal (two-way) acti
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In this fascinating conversation, cosmologist and TED Fellow Katie Mack delves into everything from the Big Bang theory to what we see at the edge of the observable universe to a few ways the cosmos might end. Stay tuned to hear Mack...

In his lab, Martin Hanczyc makes "protocells," experimental blobs of chemicals that behave like living cells. His work demonstrates how life might have first occurred on Earth ... and perhaps elsewhere too.

Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time,...

How counting in Ternary can solve a variant of the Tower's of Hanoi puzzle, and how this gives rise to a beautiful connection to Sierpinski's triangle.

You've probably known OF E=mc_ since you were born, and were also probably told that it meant that it proved Mass equaled Energy, or something along those lines. BUT WAIT. Was E=mc_ explained to you properly? Mass equalling energy is...

It's been a long road to the discovery that Earth is not the center of the Solar System, the Milky Way, or the universe; great thinkers from Aristotle to Bruno have grappled with it for millennia. But if we aren't at the center of the...

You might think that you’re pretty familiar with your body, but it turns out that our bodies still have some surprises for us!

You're enjoying a nice simulated drive using your VR headset, when you're suddenly jolted with nausea. What is causing this gross feeling? Check out this episode to learn how sensory input and VR simulation can throw your body off.

There are a few theories that would suggest Jupiter's moon IO has an underground magma ocean. Hank Green explains in this episode of SciShow Space!

How did ancient civilizations move massive stones to build Stonehenge, the Pyramids and the Easter Island statues? In this quick, delightful talk, TED Fellow Brandon Clifford reveals some architectural secrets of the past and shows how...

Immovable Object vs. Unstoppable Force - Which Wins

The energy in the universe never increases or decreases -- but it does move around a lot. Energy can be potential (like a stretched-out rubber band waiting to snap) or kinetic (like the molecules that vibrate within any substance). And...

The Beresheet lander is on its way to the moon and Jupiter's magnetic field might be affecting Europa's ocean.