How much does planet Earth weigh?

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

Do you have a good feel for the size of the Earth? If you’re like most people, you know that it’s big but you don’t have a sense for exactly how big. Today we’re going to change that! Read the full transcript here: http://bit.ly/2eVwubz Hosted on Acast. See acast.com/privacy for ...  Show more

How dark matter was discovered, and what it might be

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Can gravity waves kill you? Why do we have particles? Can fission power a star?

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Daniel talks about how astronomers can measure or deduce the mass of a star, and why it controls its fate.

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