Greatest inventions
Submitted by podizz on Sun, 06/24/2012 - 20:09
Tags:
- lightbulb
- modern plumbing
- printing press
- internal combustion engine
- refrigeration
- gunpowder
- penicillin
- personal computer
- clock
- telephone
- radio
- television
- camera
- battery
- bifocals
- steam engine
- pasteurization
- phonograph
- telescope
- hypodermic needle
- pencil
- dynamite
- bicycle
- x-ray
- radar
- thermometer
- video camera
- modem
- cotton gin
- match
- air conditioner
- barbed wire
- cell phone
- type writer
- microwave
- dish washer
- vacuum
- smart phone
- Ipod
- GPS
- zipper
- lighter
- microphone
- VCR
