Topic: fire

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How is black fire made?

This is not a special effect. This is black fire. When you mix a sodium street light or low-pressure sodium lamp with a flame, you'll see a dark flame thanks to the sodium and some excited electrons. "It's strange ...

Thermal expansion sphere and ring demonstrations

If you ever had trouble twisting open a jar lid that's stuck, try running it under some hot water. When you try again, it will most likely pop open with a twist thanks to thermal expansion. Most (but not all) matter w...

The Beauty of Flames

The Beauty of Flames captures some extraordinary-looking flames, "the visible, gaseous part of a fire," in this video from Yan Liang's Envisioning Chemistry science and art series. The flames were created by Professor...

What is fire? Is it a solid, a liquid, or a gas?

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 twi...

How to make a rocket

"What's the best scientific formula for a powerful rocket with oxidizer and fuel?" In this video clip from Bang Goes The Theory Series 5, via BBC Earth Lab, we get a quick peek at the mix of chemistry and physics that...

El Relicario: Abdón Punzo Ángel’s artisanal coppersmithing from scraps

Metalsmith Abdón Punzo Ángel and his family craft award-winning decorative copper and silver objects from recycled materials. El Arte del Cobre, their celebrated multi-generational business, is one of over fifty works...

Use a 9-volt battery to break water into its elemental components

In the 1987 miniseries The Ring of Truth: An Inquiry into How We Know What We Know, Philip Morrison proves that a water molecule is composed of two hydrogen (H) atoms & one oxygen (O) atom with a simple demonstration....

Creating wood ash cement from scratch, an experiment

How do you make a cement-like building material that won't dissolve in water? From scratch? In this Primitive Technology video, an experimental cement is made from crushed terracotta and refired wood ash that was burn...

Pyrotechnics pro Jim Souza explains the art of a massive fireworks show

How do pyrotechnics experts stage professional fireworks shows for holidays and events like the Macy's July 4th Spectacular and both the 100th and 125th anniversaries of the Statue of Liberty? In this Wired video, fou...

The Science Of Firework Color

Sodium in yellow bursts, strontium in red, calcium gives us orange, barium for green, and copper for blue hues... and there are more where those came from. The science of firework color, as explained above by SkunkBea...

In Search of Forgotten Colours – Sachio Yoshioka and the Art of Natural Dyeing

Sachio Yoshioka is the fifth-generation head of the Somenotsukasa Yoshioka dye workshop in Fushimi, southern Kyoto. When he succeeded to the family business in 1988, he abandoned the use of synthetic colours in favour...

How USGS scientists monitor Kilauea Volcano’s ongoing eruptions

On the Big Island of Hawaii, Kilauea Volcano continues to erupt. For U.S. Geological Survey scientists like volcanologist Dr. Alexa Van Eaton, the event is potentially a once-in-a-lifetime opportunity to learn as much...

A Visual History of Light, animated

400,000 years ago, humans and Neanderthals created fire. This ignited a relationship between people and photons that changed the course of mankind—and continues to evolve to this day. Take a tour through the visual hi...

How to make a turquoise goblet

How did the Venetians make turquoise glass in the late 1400s? Find out as Bill Gudenrath, glass specialist at the Corning Museum of Glass, uses traditional glass blowing methods to create a replica of the extremely ra...

Making a kitchen knife from a roll of aluminum foil

With a roll of aluminum foil, some heat, a small hammer, a few whetstones, and lots of repetitive tapping and sanding, layers of foil can be turned into a sharpened kitchen knife. In the video above, YouTuber Kiwami J...

Making lime with Primitive Technology

Making use of the unoccupied shells of native rainforest snails around his original land, Primitive Technology makes lime mortar by firing them in his pottery kiln, slaking the calcined shells with water so that they ...

Going Fishing, a stop motion animation by Guldies

Small campfires that light with a snap. A tree that's chopped down with a tiny axe. Claymation well water that creates a small lake. A fish trinket that's cooked up for dinner. Going Fishing is a short stop-motion fil...

Pottery, a stove, and a palm frond dome hut – Primitive Technology

Since buying new land in Australia's dense tropical rainforest, the man behind Primitive Technology has had access to better clay, good stone, and other abundant materials for building. In the video above, he makes sm...

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