Atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

U.S. commodity farmers generally sell their harvests to grain silos and co-ops, at a per bushel rate. While the impact on ...

Founder of Artis International and Distinguished Research Fellow at the Changing Character of War Centre at Oxford University ...

I f you were just served an ad for an air duct cleaning product, you may now be wondering if your home’s air ducts should be cleaned—especially if you’ve never done it. Will ...