What do you think are the most significant inventions of the last 50 years?

kbockelman

matthew.rawlik

jrich

sidneygiselle

jjohnson

blentz

test.sch20

adrgan

bettina.melton

ewelina.roja

swells4

nicky.abraham

heathercatanzaro

120.aali

collinsm

gbennett

luke.kearns

geoffreyhenderson98

andrew.smith