what is the most important invention in the last 100 years?
they r life savers :D
One of the most important invention of the last 200 years is the electric light bulb. Also included in the list are the airplane, microwave oven, and personal computer.
toothpaste
me
The Internet
* CDs * DVD's / DVD players * Computer * Printer * Scanner * Ipod / mp3 players / mp3's * microwaves * software * cell phones
The worst invention in the past 200 years will vary depending on who you ask. Many people think that the worst invention is the car and others think that it is the Internet.
Yes, my passport has expired within the last 20 years.
computer
yes
ME! :?) maybe PC, airplane, car, or cellphones. I don't know how long cellphones have been around, though.
the microscope
Iphone 4(s) it changed everything again . Atte: tavo.