You might think of gas masks as clunky military-looking devices. But in the near future, we may need to rely on these filters as part of our everyday lives. In addition to emerging diseases, wildfire frequency has more than tripled, and...

Uncontrolled fire threatens nature — but the right kind of fire can maintain the health and balance of the land, says fire management expert Oral McGuire. As a leader in the Nyungar community of southwestern Australia and a former...

Occasionally, a volcano coughs up a ring of fog. How does it create that whimsical shape, and how similar is it to the smoke rings humans can make?<br/>

Nuclear war is a terrifying existential threat, but we shouldn't only fear the blasts because the ensuing smoke is the real killer.

You might want a really sturdy umbrella to dig into this video, because we’re discussing 5 animals that have a tendency to rain down from the sky and the reasons we think this might be happening!

There are 118 elements on the periodic table, but it seems like only a handful of them get any attention. But just because you haven't heard of an element doesn't mean that it isn't a vital part of everyday life! Learn about these lesser...

The climate crisis has been largely caused by irresponsible adults in developed countries, but it's the children of developing nations -- like Zimbabwean environmental activist Nkosilathi Nyathi -- that suffer from the most disastrous...

HEPA filters are the basis of modern filtration - but they also represent a straight line from the Manhattan Project to your living room!

In the midst of a volcanic eruption, lightning can streak across the ash and smoke above it, but what do we think causes volcanic lightning?

Radio host Julie Burstein talks with creative people for a living -- and shares four lessons about how to create in the face of challenge, self-doubt and loss. Hear insights from filmmaker Mira Nair, writer Richard Ford, sculptor Richard...

If you've ever put your feet up on a warm summer's day and played "spot the shape in the cloud," you might've seen a kangaroo, a guy preparing to facepalm, maybe a mushroom... On second thought, hopefully not that last one.

In 1985, architect Paul Pholeros was challenged to "stop people getting sick" in a small indigenous community in south Australia. And it meant thinking way beyond medicine. In this sparky, interactive talk, Pholeros shares his work with...

Salvia divinorum, despite sounding like a spell from the world of Harry Potter, can't turn you into an inanimate object, make you leave your body, or set your feet on fire. However, it can make you FEEL like all of those things are...

After losing her mother in a house fire when she was just six years old, Danielle Torley saw two paths before her: a life full of fear, or one that promised healing and recovery. In this inspiring talk, she describes how she turned her...

Cigarettes aren't good for us. That's hardly news -- we've known about the dangers of smoking for decades. But how exactly do cigarettes harm us, and can our bodies recover if we stop? Krishna Sudhir details what happens when we smoke --...

Chinese alchemists searching for an elixir of eternal life discovered the world's first chemical explosive. Hank has the full story on gunpowder in this SciShow about a big idea of science.

Wingsuit jumping is the leading edge of extreme sports -- an exhilarating feat of almost unbelievable daring, where skydivers soar through canyons at over 100MPH. Ueli Gegenschatz talks about how (and why) he does it, and shows...

A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.

Seeing as nasty wildfire seasons are becoming our new normal, let’s talk about smoke: what it is, what it does to us, and what you can do to protect yourself from it.

Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twist and flicker in...

Hank gives you five MORE reasons why you should probably avoid smoking, or quit if you already smoke - in addition to those big ones you already know about. These are the weird reasons.

While not used much any more as a primary source of light, candles are still everywhere, from an aroma in a bathroom to a mood during dinner. That is, until they’re gone.

Flying is a great way to get around, but humans have only been doing it for a little over a century. Let’s revisit six SciShow videos exploring the world of flying non-human animals, which includes some species that you might not expect!

You know how you somehow end up getting smoke in your eyes wherever you stand around a bonfire? Well, it turns out that’s not a curse! It’s much more easily explained with physics. "The more protractors, the better the party." ~Hank Green