Tag: human body

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It’s Okay to Be Smart – The Cycle: Carbon and Oxygen and You

From PBS Digital Studios and Joe Hanson of It's Okay to Be Smart, this is The Cycle: Carbon and Oxygen and You, a visualized explanation for what happens when we breathe. And here it is explained: via It's Oka...

Paralyzed Woman Controls Robotic Arm With Thoughts

When Cathy Hutchinson controlled a robotic arm using a small sensor planted in her brain, it was a remarkable breakthrough in neurobiology and computer science. The sensor would recognize patterns or signals from her ...

TED Ed: How does the heart pump blood?

"For most of history, humans had no idea what purpose the heart served... although everyone could feel their own heart beating, it wasn't always clear what each thump was achieving... Even in the 21st century, only a ...

Sugar: Hiding in plain sight

We know that sugar is a big part of candy, ice cream, and sweet drinks, but did you know that added sugars are included in 3/4 of the 600,000+ products found in the average grocery store? And...

TED Ed: The Mystery of Motion Sickness

One out of three people get motion sick, yet it’s not something we can really cure, only relieve. So what exactly is going on inside of our bodies when this happens? If you liked Head Sq...

Head Squeeze: Why do we get car sick?

Why do we get car sick? Sea sick? Air sick? Greg Foot of Head Squeeze explains. And here’s some related reading on ginger. Related videos: more brains! via Devour.

Ancient Ancestors Come to Life at the Smithsonian

"The human story is really nothing short of the story of a little corner of the universe becoming aware of itself." From National Geographic, paleo-artist John Gurche creates realistic huma...

Thailand’s Moken people have incredibly clear underwater vision. How?

In this extraordinary adaptation strategy, Thailand’s Moken sea gypsies can see twice as clearly underwater by controlling the size of their pupils. What was generally considered an automatic reflex for the res...

Boy gets prosthetic hand made by 3-D printer

"When I outgrow a hand, we can easily make a new one," explains 12-year-old Leon McCarthy of his "cyborg" hand. His path into this specialized technology began when his father Paul found a video of 5-year-old Liam Dip...

Close Up: The Human Eye

This human eye video close-up, via io9’s Incredible Photographs of Fractals Found in the Natural World, was filmed by AJ Korkidakis. The one below, which isn’t as crisp but goes i...

Human tower-building competition: 2012 Concurs de Castells

From the 2012 Concurs de Castells, a human tower-building competition in Tarragona, Spain, watch this video by photographer David Oliete. David also took photos. A long tradition in the ...

Earth Unplugged: Wet animals shake in slow motion

According to the research, “a wet animal could spend 20% or more of it’s daily food energy to evaporate water in its fur, if it cannot shake.” Therefore, it’s super import...