Why is biting foil unpleasant?

Mankind doesn't just send rockets or space probes into space. In fact, many unexpected objects have been launched into space, all for the sake of science. See acast.com/privacy for privacy and opt-out information. Hosted on Acast. See acast.com/privacy for more information. 

On the walls of the Egyptian pyramids, human depictions, and especially depictions of nobility, are often represented in profile. The reason they are designed this way is primarily religious. If you look closely, you’ll notice that the ancient Egyptian characters are not entirely ...  Show more

If you've ever gotten a painful shock from biting down on a piece of aluminum foil, it's becauce dental metal in your mouth formed a type of battery with the foil. Learn how it works in this classic episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodc ...  Show more

What's the difference between the shiny and dull side of aluminum foil? Are you supposed to cook with one side rather than the other? Why is it called tin foil if it's made of aluminum? Why does tinfoil affect teeth nerves so much? Why is it alumiNUM in the US and aliuminIUM in t ...  Show more

Researchers have noticed that as incidence of anger increases so too has teeth grinding, known clinically as bruxism. That’s a problem because when people grind their teeth, especially when they’re sleeping, they can wear them down to nubs.

Dentists recommend flossing all the time, but why don't they suggest the use of mouthwash as much? Can or can't you rebuild enamel with mouthwash or toothpaste products? Why does mouthwash cause a burning sensation in your mouth? Why was it named Listerine and what was the event ...  Show more