There's No Such Thing As Cold It's Okay To Be Smart

Category: Physics
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You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's NOT there.

It's Okay To Be Smart • 0 • 6 episodes •

How Many Heartbeats Do We Get?

Ever wonder how the heart symbol came to stand for the actual heart? And why do we speak of the heart as the seat of love, when love really happens in our brains? Is it true that animals only get a billion heartbeats? This week, we give you enough cool cardiac science to make your heart skip a beat.

Science

Climate Science: What You Need To Know

Learn the basic science of climate change in 24 easy steps.

Environment

There's No Such Thing As Cold

You've felt cold before. Sometimes it's cold outside. But what if I told you that "cold" isn't real? There's no substance or quantity called "cold" in science. We can't measure the amount of "cold" in something. Instead it's about what's NOT there.

Physics

Why Do We Have To Sleep?

Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.

2015 • Health

100,000,000 Years From Now

100,000,000 years from now, a team of alien geologists arrive at a mysterious blue-green planet, and decide to investigate. Here's what they'll find…

2016 • Science

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In Search Of: Time Travel

Zach charts a journey to determine whether time travel is possible. He meets a man who claims to have traveled back in time due to a secret government program and a group of people living in Liverpool known as “time slippers.” Zach then makes an visit to the CERN headquarters in Geneva, where he attempts to understand the origins of the universe and the dimension of time. Equipped with this new knowledge, Zach tests his own perception of time with an elaborate skydiving experiment to see if he can slow down time itself.

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Uncovering a New Reality

Theoretical physicist and best-selling author Brian Greene takes us on a journey through the discoveries of quantum physics. How is it that Newtonian mechanics gave way to the more complex and modern world of quantum mechanics?

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The Story of Information

Professor Jim Al-Khalili discovers the intriguing story of how we discovered the rules that drive the universe. (Part 2: The Story of Information) Professor Jim Al-Khalili investigates one of the most important concepts in the world today - information. He discovers how we harnessed the power of symbols, everything from the first alphabet to the electric telegraph through to the modern digital age. But on this journey he learns that information isn't just about human communication, it's woven very profoundly into the fabric of reality.

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