Could We Recycle Excess Subway Heat?

Canning foods preserves them, but the texture and nutritive value can suffer -- and what about the potential dangers of BPA and botulism? Learn what's true and what's myth when it comes to canned food in this classic episode of BrainStuff, based on this article: https://recipes.h ...  Show more

These marine invertebrates can solve puzzles, use tools, and camouflage themselves by changing their very skin -- yet they live only three to five years, and die after mating. Learn more about octopuses in today's episode of BrainStuff, based on these articles: https://animals.ho ...  Show more

Could altering the Earth’s atmosphere to reflect back some of the sun’s rays be a solution to climate change? It would likely decrease global temperatures, but it might lead to climate wars. Humanity might become “addicted” to it for survival. And ultimately, would this technolog ...  Show more

Green energy is good for all, and it doesn't get much greener than using the Earth's own heat to warm your home or office. Learn all about geothermal energy in today's new episode.

Industrial manufacturers spend a huge amount of energy generating heat to make everyday materials and objects, like cement, steel, and paper. And since most companies use fossil fuels to reach these high temperatures, industrial heat accounts for 20% of our annual global carbon p ...  Show more

Our planet has a carbon problem -- if we don't start removing carbon dioxide from the atmosphere, we'll grow hotter, faster. Chemical engineer Jennifer Wilcox previews some amazing technology to scrub carbon from the air, using chemical reactions that capture and reuse CO2 in muc ...  Show more