Not exactly a human invention, but I'd say tools or the process of metallurgy. (Did I spell that correctly?)
[QUOTE=yellowoboe;21787292]Rope and duct tape.
Obvious reasons.[/QUOTE]
It is a tough choice because there are a lot of things that are incredibly important. Like the lever, irrigation, medicine.
So, duct tape :downs:
Duh, it's the Handyman's secret weapon!
[img]http://www.fairbankschamber.org/happening/images/RedGreenImage.jpg[/img]
Cookie to who tells me who they are/what show they are from.
Team Fortress 2
Our greatest creation/discovery... Is yet to come.
I'm gonna have to say fuckin magnets. How do they work?!?
[QUOTE=DemonDog;21787337]Sliced bread.[/QUOTE]
What was better before sliced bread?
[QUOTE=Angeloc;21789286]Pencilin[/QUOTE]
The story on the accidental discovery of Penicillin always has amazed me.
Guess what's winning in the poll!
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