Food
4 inventions in this category
Coffee filter
The paper coffee filter emerged because Melitta Bentz was tired of bitter, gritty coffee and had the insight that her son's school supplies might solv...
Condensed milk
Fresh milk spoiled at the speed of distance. In the middle of the nineteenth century that made cities, ships, mining camps, and armies depend on cows...
Corn tortilla
A maize field does not become a civilization just because it yields calories. It becomes one when those calories can travel through a day. The `corn-t...
Harpoon
A spear kills by hitting. A harpoon kills by refusing to let go. That distinction changed human access to water more than sharper points alone ever co...