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

swells4

nicky.abraham

heathercatanzaro

ewelina.roja

120.aali

collinsm

gbennett

andrew.smith

geoffreyhenderson98

luke.kearns