Category
History of Mechanics
The Physics of the Screw: From Archimedes to the Modern Bolt
A screw is an inclined plane wrapped around a cylinder, which is why a small turning effort can generate enormous clamping force — and why threads hold their position without slipping.
Archimedes and the Machines That Shaped Engineering
Long before 'mechanical advantage' had a name, Archimedes and later Leonardo da Vinci studied levers, pulleys, and gears closely enough to leave behind ideas engineers still use today.