What is /or would be the coolest invention
Contact lenses that you can switch it's optics by blinking. It's optics are night vision, thermal and normal!
Flying cars lol
A Time Machine :) And a no gasoline Car that still drives
I agree with girlsmartz
iron men suit
A new life.
Teleport just say it and think on where you want to go that would be AWESOME!
a pill that will make u never die unless u want to. and a pill that won't make u age and u won't have acne
The first electric lightbulb. Everything today and what is to come pretty much evolves around electricity and lights in my opinion
A car which charges and we have to charge it at charge stations instead of petrol pump.
A machine that stuffs information in your head so you don't have to go to school.
A time machine or a pill that can make you immune to all diseases and also a pill that extends your lifetime by at least 50 years:D