Topic: gas

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Why every picture of a black hole is an illustration – Vox

No one has ever seen a black hole. There have been illustrations and computer simulations, but not even astronomers have seen a black hole... yet. In the spring of 2017, we might see... something. As a part of...

How do we know what stars are made of?

How do astronomers know what stars are made of when those stars are light years away from Earth? These demonstrations by Dr Francisco Diego reveal the colors of light that are produced from sodium chloride, rubidium c...

How did clouds get their names? – TED Ed

In daydreaming out the window as a kid, Luke Howard began to informally study the constantly changing clouds in the sky. In 1802, he was the first to name cloud forms, as well as a variety of transitional cloud types....

Meet the Balloonatics – SciFri goes to Macy’s Parade Studio

How are Macy's Thanksgiving Day Parade balloons designed, calculated, fabricated, tested, and retested before they show up on the streets of Manhattan on Thanksgiving morning? From Science Friday in 2011, visit the 'b...

How Far Do Sneezes and Vomit Travel? – Gross Science

Let's enter the world of sneeze experiments and vomiting machines with Anna Rothschild as she explains just how far the tiny liquid particles from sneezes and vomit can travel... and it's farther than you think. 'Vomi...

The Rosetta Mission Asks, “How Did Our Solar System Form?”

How does studying Comet 67P/Churyumov–Gerasimenko start to shed light on some of the questions we have about the origins of the universe? For example, how did gas and dust form our solar system? How did we get from st...

Much A-Doo About Poo – Gross Science

Poop! Poop for fertilizer, heat, and electricity! Around 300 cows at Jordan Dairy Farm help generate energy and a nutrient-rich digestate, thanks to a specially built barn floor that collects their manure. Nearby, an ...

Rescuing Leftover Cuisine & working together to reduce food waste

Rescuing Leftover Cuisine co-founder Robert Lee is working with a team of volunteers to deliver excess restaurant food to food pantries and homeless shelters in New York City. This video from Mic explains RLC's missio...

Kawah Ijen volcano & The Mystery of the Blue Flames

Nature photographer Olivier Grunewald and cameraman Régis Etienne first traveled to East Java's 8,660 foot tall (2,600 meter) Ijen volcano in 2008, returning several times to capture Le Mystère des Flammes Bleues, th...

How to Make a Cloud in Your Mouth – Physics Girl

To make a cloud in your mouth -- yes, this is a very cool trick that actually works with practice -- you'll need to make tiny water droplets in your mouth. Then up the pressure. Physics Girl Dianna Cowern demonstrates...

How Do Greenhouse Gases Actually Work?

The Earth and the Moon are essentially the same distance from the sun, yet the two rocks have very different surfaces thanks to our Earth's atmosphere. It shields us during the day, and at night, it traps enough heat ...

DIY Cloud Chamber – How to build your own particle detector

There's an easy way to build a particle detector for around $40. Yes, you can make your own particle detector to see invisible cosmic rays from space. In this video from US LHC at CERN -- LHC stands for Large Hadr...

Explore wastewater treatment with LeVar Burton & Reading Rainbow

How do we use technology to turn human waste into water that we can drink? This Reading Rainbow field trip is an excellent introduction to how we use bacteria, solar power, oxygen, gravity, chlorine, and more to reuse...

A solid, liquid, & gas at the same time – The Triple Point

How can a chemical be a solid, a liquid, and a gas at the same time? In the video above, a clear liquid called cyclohexane is experiencing the perfect pressure and temperature combination for its solid, liquid, and ga...

How to make fizzy bottle rockets – ExpeRimental

This ExpeRimental episode from The Royal Institution is full of super explosive fun. Danielle and Michael show a group of kids how to make fizzy bottle rockets with some small, sports-capped plastic bottles, some Alka...

The Ring of Truth: Two Hydrogen Atoms & One Oxygen Atom

Possibly the most well-known scientific formula on the planet, H2O is one of those terms that we see around all the time. We know that H2O means water, and that a water molecule is composed of two hydrogen (H) atoms &...

Volcanic Eruptions 101: How It Happens

How do volcanos work? From explosive eruptions to creeping lava flows, this NYT video explains the anatomy of a volcano, and how the unseen underground variables can make it difficult to know how a volcano might behav...

Why Do Clouds Stay Up? – It’s Okay to Be Smart

Clouds are filled with so many water droplets that they're actually heavy... like 100 elephants heavy or a 747 airplane heavy! So why don't clouds fall out of the sky? It's Okay to Be Smart's Joe Hanson explains every...

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