MP3s transform how people listen to music and spawn digital piracy; streaming music helps the industry recover, but artists my not be getting their fair share.

Credit cards change the global economy and attitudes about personal spending, leading to record levels of consumer debt.

Growing evidence suggests that psychedelic drugs could treat brain injuries and psychological problems.

Thanks to dating apps, finding love is easier than ever, but some are more focused on playing the game than finding real connections.

Lasers are used for everything, including entertainment, medicine and weapons straight out of science fiction.