Liquid crystals — between solid and liquid states — power every LCD screen and display.

The phonograph recorded and replayed sound.

The first hard drive, released in 1956, weighed over a ton and stored only 5 megabytes.

The 3D printer allows objects to be built layer by layer.

The fax machine was invented before the telephone.

The world's first programmable computer, the Colossus, was built secretly in Britain during World War II to decode Nazi messages.

The invention of insulin pumps improved diabetes management.

The development of MRI technology improved internal imaging.

Your phone can still track your location even without GPS using signals.