Introduction Before the industrial age people largely had to rely on muscle power to move and lift heavy objects. Simple machines such as pulleys, levers and ramps made it easier for humans to lift ...

Can you make an elevator out of a spool of thread, some string and a hanger? Your friends might think it is magic, but it’s science at work! Here’s an easy experiement that has its ups and downs! 1.

Throughout history, humans have developed several simple machines to make work easier. The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined ...