Kleptotherms

For much of history, tree canopies were pretty much completely ignored by science. It was as if researchers said collectively, "It's just going to be empty up there, and we've got our hands full studying the trees down here! So why bother?" But then around the mid-1980s, a few ec ...  Show more

There’s something rotten in the cows of Denmark. And Minnesota. And Wisconsin. And Idaho. What could cause a previously thriving herd of majestic dairy cattle to stop drinking water and start drinking … urine? A Danish farmer calls a special investigator, who takes one look at hi ...  Show more

#154

When you're young in science class, you probably learned the phrase "freezing point," but is that even a thing? Is there a specific temperature at which things go from liquid to solid? Spoiler alert: Melissa thinks that's actually a huge ...

Joe and Fergus chat about all things mercury and find that there's much more to it than just thermometers! It's been used since ancient times - some thought it was the key to eternal life, despite its poisonous nature. Find out more in this week's episode. 

#178

Thermometers tell us what temperature something is. But how do the thermometers know what the temperature is? Who tells the thermometers? Or rather, how do thermometers accurately gauge what the temperature is, consistently, in high heat and ...

Melvyn Bragg and guests discuss the history of scientific ideas about heat. As anyone who’s ever burnt their hand will testify – heat is a pretty commonplace concept. Cups of coffee cool down, microwaves reheat them, water boils at 100 degrees and freezes on cold winter nights.Be ...  Show more