Greatest engineering advance or innovation?

[mercanucaribe]

Originally posted by: killface
Stolen from SA: Thopmson Coupling is pretty sweet and new. It might change the amount of fuel we waste turning and whatnot. check out the video.

It's just an advancement of a U joint.
Edit: I watched the video. That thing is awesome. CV joints SUCK


Anyway, I have to say... the internal combustion engine.

 

[JeffreyLebowski]

Irrigation/Aquaducts ect. It brought fresh water to the people in cities so you could have metropolisis and allowed the Roman Empire to achieve all that it did and thus created.

 

[Abe Froman]

Condoms