Answer:
The x-ray machine
Step-by-step explanation:
Freeze dried food was developed with NASA. Food in space for the astronauts needed to have long shelf lives, be light, easy to pack, and easy to prepare.
The infrared ear thermometer was developed by Diatek and NASA using infrared astronomy technology to measure the infrared energy given off by the ear drum.
The portable cordless vacuum was developed by Black and Decker and NASA as a specialized drill to collect samples below the surface of the moon.
The X-ray machine was invented in the 19th century, way before the space program and NASA.