2006-08-25 04:31:55 · 10 answers · asked by Shaina 2 in Education & Reference ➔ Homework Help
Is it the wheel? Or electricity. Or phones? hmmm?....... Well, this didn't turn out to be a very concise answer did it? Story of my life. "What a basketcase!"
2006-08-25 04:35:26 · answer #1 · answered by Anonymous · 0⤊ 0⤋
That would be air conditioning. I don't know if you've ever sat in a really hot car on a really hot day, or gotten up off someone's plastic covered couch in a house that has no airconditioning, or tried to sleep in 90% humidity conditions with 110 overnight temperatures, but engaging in any of the above, would surely lead you to the same conclusion as me, that air conditioning is the best invention of the 20th Century.
2006-08-25 04:43:14 · answer #2 · answered by IKnowAll 3 · 0⤊ 0⤋
I say that the most important innovation of humankind is the machines that clean our water! Without clean water, we could not live!
2006-08-25 04:36:12 · answer #3 · answered by creyentededios 2 · 0⤊ 0⤋
Civilization
2006-08-25 04:36:51 · answer #4 · answered by Ashlee S 4 · 0⤊ 0⤋
Antibiotics
2006-08-25 04:34:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I was thinking fire, but we didn't really invent that. Probably the microscope-- the ability to see and work with things on a very small scale has done fantastic things for us both biologically and technologically.
2006-08-25 05:46:06 · answer #6 · answered by LingXinYi 3 · 0⤊ 0⤋
The ATM Card
2006-08-25 04:35:45 · answer #7 · answered by jim 6 · 0⤊ 0⤋
The wheel. Even though it is 1000s of years old.
It hasn't been topped in my opinion. Take wheels away and you have nothing.
2006-08-25 04:37:44 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Walking on two legs and using their hands.
2006-08-25 04:34:37 · answer #9 · answered by margaryan 2 · 0⤊ 0⤋
electricity
2006-08-25 04:37:18 · answer #10 · answered by Elizabeth 4 · 1⤊ 0⤋