Theres a famous star that I’m sure you’ve seen in the sky. Its name is Betelgeuse, and you can find it in the Orion constellation, where it marks Orion’s right shoulder. If you want to call it “Beetlejuice,” I’m fine with that so long as you don’t say it three times. But something is going…
Melting an ice cube takes 3.34 x 105 joules per kilogram. So a single ice cube with a mass of 50 grams would take 16,700 joules. You can already see that melting stuff takes a bunch of energy. If you want to melt a metal door, you have to do two things—increase the temperature to…
Naaman and his team discovered that chiral molecules filter electrons based on the direction of their spin. Electrons with one spin orientation will move more efficiently across a chiral molecule in one direction than the other. Electrons with the opposite spin move more freely the other way. To understand why, imagine throwing a Frisbee that…
