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Warfare

What if We Replace Guns and Bullets with Bows and Arrows?

The bicycle and the bow are both highly efficient, human-powered technologies that could substitute for two very harmful alternatives: the car and the firearm. Why do we promote one but not the other?

When Lethal Weapons Grew on Trees

While manufacturing modern firearms and bullets depends on a global supply chain and fossil fuels, bows and arrows can be made anywhere out of anything, using only human power and simple hand tools.

How to Downsize a Transport Network: The Chinese Wheelbarrow

For being such a seemingly ordinary vehicle, the wheelbarrow has a surprisingly exciting history.

A Steam Powered Submarine: The Ictíneo

Narcís Monturiol successfully resolved the two basic obstacles presented to submarine inventors: air supply and mechanical power.