Topic: safety

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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 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 ...

Candle Chemistry – ExpeRimental

In this episode of ExpeRimental, Lisa and Josh explain the unseen as they make a flame jump through the air. Josh also measures how long it takes for covered candles to extinguish on their own. There's more activity i...

How to replace railway ties without pulling up the rails

Railroad tracks are made of three main parts: the long steel rails that the trains run on, wooden or concrete railroad ties (US) or sleepers (UK), and the track ballast that helps bear a train's weight and keeps the t...

Watch 11-year-old rock climbing prodigy Brooke Raboutou climb

It's no wonder that 11-year-old Brooke Raboutou loves to rock climb: Her parents are two former world champion climbers who own a rock climbing gym in Boulder, Colorado, and from very young, climbing has been a huge p...

Grizzly Bears vs Campsite

When camping, it’s good to know how to enjoy nature while keeping nature protected and out of your stuff. With this in mind, grizzly bears Ozzy and Bruno team up with ZooMontana keeper Kry...

Firefighter Xochitl Hernandez – Amy Poehler’s Smart Girls

From Amy Poehler’s Smart Girls YouTube series: meet firefighter Xochitl Hernandez, one of 57 female firefighters in Austin Fire Department. Hernandez explains why she loves her job, and shares some of the amazin...

Human tower-building competition: 2012 Concurs de Castells

From the 2012 Concurs de Castells, a human tower-building competition in Tarragona, Spain, watch this video by photographer David Oliete. David also took photos: A long tradition...

Animated Knots – How to tie a Figure 8 knot

This video demonstrates how to tie a Figure 8 knot, one of the Basic 8 knots that lead to a huge catalog of useful tying skills for boating, climbing, scouting, search and rescue, and more. ...

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