What was the greatest invention of all time?

[vincejohnson]

The zipper?

Toilet?

Glass?

Condom?

_________ you tell me

 

[Hammster]

Apparently it’s sliced bread.

 

[Hammster]

But seriously, the wheel or the lever.

 

[SeventyOne]

Air conditioning/refrigeration.

 

[bhillyard]

Zero. The symbol used in calculation and the idea of using it in calculations.

 

[Humble me Lord]

I would have to say, the spork. I mean really, a spoon and fork in one, pure brilliance!

Wheel.

 

[Nithavela]

The knife.

Not only an all-purpose tool, but a weapon since prehistoric times and still standard issue for every soldier.

 

[Tolworth John]

Printing, because it enabled knowledge to be spread and not to be the tool of a priviledged few.

 

[yeshuaslavejeff]

Apparently it’s sliced bread.

That's one of the most profitable (for the sickness industry),
true.

 

[yeshuaslavejeff]

Colloidal Silver.

 

[Ancient of Days]

Common sense. Which seems to be utterly lost these days.

 

[Ancient of Days]

Colloidal Silver.

If you like colloidal silver you will love nano silver. Good stuff!
Results RNA | ACS 200 Extra Strength

 

[Tom 1]

The zipper?

Toilet?

Glass?

Condom?

_________ you tell me

Written language

 

[JackRT]

Spoken language --- all other suggestions pale by comparison.

 

[expos4ever]

Batteries.

 

[Nithavela]

Spoken language --- all other suggestions pale by comparison.

Common sense. Which seems to be utterly lost these days.

Neither of those are inventions.

 

[Paul of Eugene OR]

The zipper?

Toilet?

Glass?

Condom?

_________ you tell me

Writing. Or maybe language. One or the other for sure.

 

[Ancient of Days]

Neither of those are inventions.

Sure it is, it was invented by GOD.

 

[DennisTate]

The zipper?

Toilet?

Glass?

Condom?

_________ you tell me

I'm thinking Eve.......
and I think that Adam would agree that our great, great, great, great..... grandmother was indeed...... worth going to hell / purgatory, for!

A message from Adam to all of humanity?! Does this sound legitimate to you???

 

[JackRT]

Granted that neither spoken or written language are inventions in the sense of , say, the printing press but they still were inventions by multiple people over periods of time. We are even coming to realize that spoken language is even present in a primitive sense in the animal kingdom. Perhaps this thread needs a narrower definition of "invention"?