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A comment on Ask HN: What content/knowledge is most important?.
How wings/flight works; how to design a simple airfoil.
Germ theory, penicillin. Microscope looking for crazy hands on long stalks. Lenses are molten glass in a mold.
Vaccines are created by producing lots of a bad thing and then heating it up to the point it dies. deactivated virus.
Heat milk to just below a boil. Never let it boil. Milk does absorb significant amounts of heat before boiling. Pasteurization.
Insulin comes from pigs and dog pancreas.
electricity = magnet + water wheel. magnets come from heated iron. next to coiled wire.
magnet -> compass
electricity + tungsten = lightbulb.
gears, glasses, thermometers, scissors, saws, utensils, language books, screwless construction techniques.
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How wings/flight works; how to design a simple airfoil.
Germ theory, penicillin. Microscope looking for crazy hands on long stalks. Lenses are molten glass in a mold.
Vaccines are created by producing lots of a bad thing and then heating it up to the point it dies. deactivated virus.
Heat milk to just below a boil. Never let it boil. Milk does absorb significant amounts of heat before boiling. Pasteurization.
Insulin comes from pigs and dog pancreas.
electricity = magnet + water wheel. magnets come from heated iron. next to coiled wire.
magnet -> compass
electricity + tungsten = lightbulb.
gears, glasses, thermometers, scissors, saws, utensils, language books, screwless construction techniques.