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 ...

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 ...

CC0 Usage Conditions ApplyClick for more information. Simple machines can be found almost anywhere from nineteenth-century water powered mills, to modern day construction sites. Once you know what to ...