Imagine if the ancient Egyptians had modern technology. Using computer design software, they would plan out their pyramid elements and dimensions; then, they’d use large excavator trucks and massive ...

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.

Explains how pulleys work to lift heavy weights more easily. A fixed pulley changes the direction of force, allowing for easier lifting, while a movable pulley reduces the amount of force needed to ...

The HitchMaster is a simple pulley with no moving parts. Like any pulley, it works by trading force for distance: it's easier to lift, say, an engine block, but you'll have to pull the rope a lot ...

Obscured by digital innovations, it’s easy to overlook the mighty pulley. Evidence of its use can be found as far back as Ancient Egypt’s Twelfth Dynasty; later, pulleys were employed in essential ...