Cortes Bank, about 100 miles off California's coast , is one of the most dangerous surf spots in the world, with shallow, often shark-infested waters. But those facts don't deter the location's top surfers.
When you hold an object, like a book and a metal iPhone, which feels colder? You'd probably say the metal or glass object every time, over a warm book. The problem is, the difference in temperature isn't really what you're feeling.
This video from ABC in Australia explains the principle of thermal conductivity to people on the street. via Catalyst