Exotic ‘second sound’ phenomenon observed in pencil lead
Friday, March 15, 2019 - 10:50
in Physics & Chemistry
The next time you set a kettle to boil, consider this scenario: After turning the burner off, instead of staying hot and slowly warming the surrounding kitchen and stove, the kettle quickly cools to room temperature and its heat hurtles away in the form of a boiling-hot wave. We know heat doesn’t behave this way […]