Topic: human body

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Are We Really 99% Chimp? – Minute Earth

When researchers decoded the chimpanzee genome in 2005, they explained that we share 99% of our DNA with chimpanzees... but what does that specifically mean? This episode of MinuteEarth illustrates how that one percen...

Why do we sleep and how do different animals sleep?

Why sleep is such an important part of our lives? ...and on a related note, why is bedtime so important? Based on what our bodies (and other animal bodies) accomplish while sleeping, there are a few leading theories a...

You Have Mites Living On Your Face – Gross Science

Yep, you have mites living on your face. And in this episode of Gross Science, Anna Rothschild explains how they're eating, laying eggs, dying, and leaking feces. On your face. But don't worry because we've known this...

How To Stop Yourself Being Ticklish – with Dr Emily Grossman

Why do we feel ticklish? Why does it make us laugh? It’s hard to pin down a scientific definition – or explanation – of tickling. It’s a complex phenomenon, involving a range of sensory and neurological elements, whic...

The science of static electricity – TED Ed

What is static electricity? Why do we get a tiny spark when we've walked across a carpet and touched a doorknob? Or have you ever pet a cat and then picked up something metal, like a spoon to stir up cat food? Zap! (A...

The praxinoscope-style BusyBody Quick-Pose Animator

Ten bendable, posable figures spin around the outside of a turntable. At the center, a series of mirrors reflect their poses. This simple combination makes for a delightful and accessible animation toy: Eye Think's Bu...

The One Year Mission in Space: Kelly & Kornienko arrive on ISS

On March 27, 2015, American astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko took off for the International Space Station in the Soyuz spacecraft for a historic One Year Mission, twice the length of an av...

Classic Sesame Street: Broken Wrist

Breaking an arm, a leg, or some part of the body can be super scary. Not only does it hurt, but you may not know what's going to happen next. We love this classic Sesame Street video because it helps explain what to e...

Deep Look: Banana Slugs and Secret of the Slime

Slime can trigger an immediate ewwwww! reaction, but ooey gooey slime is actually a rather brilliant, problem solving substance. One of the animals that depends on its slime can be found among the gigantic redwood for...

Fundamentals of Neuroscience Presents: Small Circuits

Small Circuits! This is one of the many wonderfully-presented lessons from Harvard's Fundamentals of Neuroscience free and open online course (or MOOC). While the video's terminology can be technical at times, the sim...

TED Ed: The benefits of a good night’s sleep

Sleep to remember! Remember to sleep! This TED-Ed focuses on those of us who are studying for tests or staying up late for deadlines, but The Benefits of a Good Night's Sleep can also help younger kiddos understand wh...

How do wounds heal & how do scars form?

What happens when we get cut and bleed? How does skin scab over and heal? And why does skin scar? These two new vocabulary-filled TED-Eds from Sarthak Sinha get deep under our skin to give us a better understanding of...

Straightening teeth with dental braces: An 18 month time lapse

The impact of getting braces has never been as evident as in this 18 month orthodontic time lapse of an 11 year old girl and the alignment of her teeth. Ready... set... straighten! Today's Orthodontics: See what brace...

Animated Life: Seeing the Invisible

"Everything that you can actually see with your eye is just the smallest sliver of life on this Earth. Most of life is invisible..." And so begins the exquisite paper-puppetry of Seeing the Invisible, a video by F...

Sesame Street: Lupita Nyong’o Loves Her Skin

Ticklish, smooth, rough, elastic, protective, full of nerve endings to feel different textures and energies, and it comes in so many beautiful shades and colors... Elmo and his good friend Lupita Nyong’o talk about sk...

How the Sun Sees You: Revealing human skin in ultraviolet light

Artist Thomas Leveritt set up a ultraviolet camera and viewing monitor in Brooklyn's Prospect Park to show people what their skin looks like in ultraviolet light. This is "how the sun sees you." The revealed freckles ...

Summertime Science: Sunburn, Sweat, and Wrinkly Fingers

Why do we sweat? Why do our fingers wrinkle in water? Why do we get sunburns? Joe Hanson explains it all in this summer science episode of It's Okay to Be Smart. Bonus: find out what those SPF numbers mean on your sun...

ScienceTake: How an Embryo Grows

From a single cell to a whole organism, how do animals grow into such diverse and complex creatures from their embryonic beginnings? What if we could follow and map a human's development from a single cell to the esti...

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