When it comes to climate solutions, "now is better than new, and time is more important than tech," says scientist Jonathan Foley. He presents a six-part framework to more efficiently address climate change, from better aligning capital...

Hundreds of millions of people lack access to electricity in Sub-Saharan Africa, relying on highly polluting diesel and firewood for power and light. Working to brighten the future in her home country of Malawi and beyond, energy access...

The Acheulean handaxe was the most common tool of early humans, but we still don’t know what the heck they used it for.

It's barbecue season around the SciShow office, which means applying our knowledge of science to this delicious outdoor past-time.

Geologists have a few ideas as to how rain affects mountains. But could rain also help mountains grow?

This video is about using particle accelerators as part of the solar panel silicon wafer manufacturing process. The accelerators embed protons into the wafer crystals, allowing them to break and separate from the main crystal in...

What are our forests really made of? From the air, ecologist Greg Asner uses a spectrometer and high-powered lasers to map nature in meticulous kaleidoscopic 3D detail -- what he calls "a very high-tech accounting system" of carbon. In...

Blu-rays can hold about ten times more than DVDs because Blu-ray players use special blue lasers to read them. But it took a while for scientists to figure out how to make those lasers work.

More than 40 million people worldwide suffer from Alzheimer's disease, and that number is expected to increase drastically in the coming years. But no real progress has been made in the fight against the disease since its classification...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on material properties.


TERMS
Structure - parts in a mater
ial object
Function - an activity or purp
ose for a thing
Properties - any traits...

Jessi and Squeaks want to learn about what (and how) owls eat! Time to experiment!

Squeaks is worried because Jessi is crying, but it's not because she is sad. She's cutting onions!

Hank talks about how your toilet is actually one of the cleanest places in your house, despite its function. Research has shown that cutting boards, dish towels and sponges have FAR more fecal bacteria on them than your toilet seat,...

A forest is much more than what you see, says ecologist Suzanne Simard. Her 30 years of research in Canadian forests have led to an astounding discovery -- trees talk, often and over vast distances. Learn more about the harmonious yet...

It's barbecue season around the SciShow office, which means applying our knowledge of science to this delicious outdoor past-time.

There are still lots of unsolved mystery about carbonados ("black diamonds"), and geologists even think those mystery rocks come from outside of Earth.

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences.

When Nancy Lublin started texting teenagers to help with her social advocacy organization, what she found was...

We all know the arguments that being vegetarian is better for the environment and for the animals -- but in a carnivorous culture, it can be hard to make the change. Graham Hill has a powerful, pragmatic suggestion: Be a weekday veg.

Dieting and exercise can be good for you, but just because something’s healthy, that doesn't mean more is even healthier.

All mammals have hair at some point in their lives, but none of them wear it quite like humans. Why does our hair grow where it does, and not grow where it doesn't? How does our hair get its color? And why does it go gray and often fall...

Conventional wisdom about diets, including government health recommendations, seems to change all the time. And yet ads routinely come out claiming to have THE answer about what we should eat. So how do we distinguish what's actually...

You’re on the trail of a werewolf that’s been terrorizing your town. After months of detective work, you’ve narrowed your suspects to one of five people. You’ve invited them to dinner with a simple plan: to slip a square of a rare...

The Rajah’s Ears Story

In this video, I put the brand-new OMTech Pronto 40 (80W) laser machine to the test by creating a one-of-a-kind Flat Earth-inspired wall piece. Using 6mm MDF board, I precisely cut and engraved the design before bringing it...