Chapter 1
Kitchen chemistry hacks
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Chapter 2
Mind and memory hacks
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Chapter 3
Ancient survival hacks
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Chapter 4
Everyday physics and repair hacks
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YOUR GOAL
Master of The science of the ultimate life hack
Ch 3 · Ancient survival hacks
mamabear1989 Aztecs built highly productive floating gardens on shallow lakes to feed their empire.
mamabear1989 Persian badgirs used wind and underground water to create natural air conditioning.
BETA
mamabear1989 Combine raw materials to figure out how early humans solved daily survival challenges.
Fun Fact
Ancient soap: Ancient Babylonians hacked hygiene in 2800 BCE by boiling fats with wood ash, creating the world's first chemical soap.
Glossary
yakhchal (noun)
An ancient evaporative cooler used to store ice and food in arid regions. Persian engineers constructed these domed structures as early as 400 BCE to preserve food during scorching summers.
An ancient evaporative cooler used to store ice and food in arid regions. Persian engineers constructed these domed structures as early as 400 BCE to preserve food during scorching summers.
Quiz
How did Polynesian wayfinders navigate the open Pacific Ocean without compasses?
Quiz
What natural material did ancient Greeks use to clean themselves before soap?
Quiz
What ancient Chinese compass hack used a magnetized needle floating in water?