The $1,000 balloon

Producer Felix Poon goes on a field trip to the headquarters of Consumer Reports, where they test snow blowers on wet sawdust, drop bicycle helmets on anvils, and cover space heaters in towels to see how long it takes them to catch fire. How do they come up with this stuff? And, ...  Show more

At the height of summer, when so many of us are grabbing picnic blankets, hitting the beach, and embracing an al fresco lifestyle, a tale of two outdoor events gone spectacularly wrong. Featuring Anika Krause, Samuel Edward-Cook, Eloise Barker, Simon Vargas, and Stephen Deng. Pro ...  Show more

Encore episode. Helium is the second-most common element in the cosmos, but it's far rarer on planet Earth. As part of our celebration of the periodic table's 150th birthday, correspondent Geoff Brumfiel shares a brief history of helium's ascent, to become a crucial part of rocke ...  Show more

Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of the chemical elements. Today he looks at helium. Helium is a finite resource here on Earth and many branches of science need it. Doctors need it to run MRI machines to d ...  Show more

Helium is the only truly non-renewable resource, and it's essential for things like MRI machines and nuclear reactors, but should we be worried? And, we turn air into food, so why can’t we get carbon to leave the atmosphere – or helium to stay? In this episode, Cosmos Science Jou ...  Show more

Balloons are often filled with helium, which has a lifting force of one gram per meter. It's possible to assemble enough balloons to lift yourself from the ground -- but how many balloons does it take? Tune into this HowStuffWorks podcast to learn more.