Topic: safety

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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...

The World in UV

See The World in Ultraviolet, a similar but strange view compared to what our human eyes perceive in the visible spectrum. In this Veritasium video, Derek Muller explores how the ultraviolet makes eyeglasses, flowers,...

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...

Neodymium magnet collisions filmed in slow motion

What happens when Speks-style magnet balls, magnetic cubes, and plastic-covered disc magnets collide with large and powerful neodymium magnets? Watch them fly through the air, crash, and stick together in this slow-mo...

Smashing stuff with neodymium magnets

What happens to a cluster of grapes when it's in between two large, very strong and potentially dangerous neodymium magnets as they collide? Science presenter Kevin Delaney and his team demonstrate the power of these ...

The Sound of Ice: Skating on thin black ice makes sci-fi movie laser sounds

This small lake outside Stockholm, Sweden, emits otherworldly sounds as Mårten Ajne skates over its precariously thin, black ice. “Wild ice skating,” or “Nordic skating,” is both an art and a science. A skater seeks o...

How a failed invention lead to a potentially life-saving new idea

Inventor Hahna Alexander spent years developing an idea that people said they really liked: Shoes that generate power as you walk, making it possible to charge a battery with them. But after starting a company and tes...

Sandwich Bag Fire Starter

The intensity of sunlight on Earth is about 1300 Watts per square meter. When you focus the sun's rays using a magnifying glass (or in this case sphere of water) you can increase the intensity roughly ten thousand fol...

Vampire Bats: Bloodthirsty … and Cuddly – Skunk Bear

In this Skunk Bear episode, Adam Cole travels to 'bat paradise' (also known as the country of Panama) to meet with May Dixon and Dr. Gerry Carter of the Smithsonian Tropical Research Institute. There he gets a close l...

Tents that turn into jackets: Humanitarian fashion by designer Angela Luna

In 2016, Parsons School of Design graduate Angela Luna designed a utilitarian collection of transformable outerwear to help address the shelter, flotation, and visibility challenges that confront refugees, "people who...

Climbing Wind Turbines for a Living

Converting kinetic energy into electrical power as they spin, wind turbines are a growing part of the world's renewable energy solutions. Rock climber and wind turbine technician Jessica Kilroy inspects, maintains, an...

Clearing snow from the cables on the Port Mann Bridge

The Port Mann Bridge is one of the largest cable stay suspension bridges in the world. To keep traffic flowing during winter storms, teams of Rope Access Technicians hang high over traffic to operate the bridge's snow...

Behold the Human Towers of Catalonia

From Great Big Story, a very tall story — 9 to 10 tiers and nearly 15.4 meters or 50 feet high — from Tarragona, Spain where thousands of people gather for an incredible contest of strength, focus, and teamwork. Behol...

Ashima Shiraishi, one of the best rock climbers in the world

A veteran rock climber at just 14 years old -- she started scaling boulders at the age of six -- New Yorker Ashima Shiraishi is considered to be one of the strongest and most talented climbers on the planet. The N...

Why do autumn leaves cause train delays? – Liz Bonnin

Why do 'leaves on the line' cause train delays, especially in autumn? The serious danger comes from a series of physics challenges: Leaves are sucked onto the tracks by the fast moving trains. The train wheels crush t...

What is Fire? – It’s Okay to Be Smart

That glowing light, those information-filled colors, that smoke and vapor that seems to magically light warm embers... What kind of physics and chemistry are at work inside of a flame? Joe Hanson from It's Okay to Be ...

The Distance I Can Be From My Son – Lenka Clayton

How far can a toddler get before you need to run after him? What factors help you decide what's almost too far for safety? For sight? For comfort? In her project Residency in Motherhood, Pittsburgh-based British c...

Flying drones over the lava lake at Ambrym’s Marum Crater

...for science! Made possible thanks to camera-outfitted drones, filmmaker Sam Cossman took a team the edge of Ambrym Volcano's Marum Crater to 3D map its 7.5-mile-wide (12-kilometer) caldera and the spectacular lava ...

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