A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called ...

Sometimes the simpler idea is the winner. That’s certainly the case with the winner of the Xprize Carbon Removal competition, which was announced on Wednesday. Mati Carbon walked away with the $50 ...

Giant machines sucking carbon dioxide out of the air to fight climate change sounds like science fiction, but it's poised to be reality, with billions of dollars of support from the U.S. government.