Play-Doh was invented in 1956 as a wallpaper cleaner — a teacher discovered kids loved playing with it.

The Large Hadron Collider is the world's largest particle accelerator.

QWERTY keyboard layout was designed in 1873 partly to separate commonly used letter pairs and reduce mechanical jamming.

Vulcanization — treating rubber with sulfur — transformed a sticky, temperature-sensitive material into durable industrial rubber.

The original name for the search engine Google was 'BackRub.'

Pianos have over 12,000 individual parts and are considered both string instruments and percussion instruments.

The first computer virus was created in 1983 as an experiment — it spread via floppy disks and was called 'Elk Cloner.'

The phonograph recorded and replayed sound.

More than 90% of the world's currency exists only digitally — not as physical cash.