21. Memory foam
Memory foam was originally invented as a pad for astronaut seats that would mold to their bodies during the high forces of takeoff and landing, then return to a neutral state. This eliminated the need to customize seats to individual astronauts’ body sizes.
22. Workout machines
Because prolonged exposure to zero-gravity leads to bone loss and muscle atrophy, NASA created workout machines to enable astronauts to maintain physical fitness while in space.
23. Home insulation
NASA began experimenting with insulation technology for the Apollo space crafts and suits, leading to the invention of common construction insulation.
24. Infrared ear thermometers
Infrared ear thermometers, which allow for instant temperature capture without the risk of picking up pathogens and causing cross-infection, utilize the same technology developed for assessing the temperature of distant planets.
25. Ice-resistant airplanes
Ice is a real threat for shuttles in space, and NASA has devised multiple electronic solutions to prevent ice formation on spacecrafts, some of which are now used on commercial aircraft.