Science and Technology Quiz 3

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Brighteye said:
The trivium and quadrivium were an invention of the mediaeval world. The ancient world studied the paideia.
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I said that. What I was implying was that those studies came from ancient times---e.g. Euclid, Ptolemus, Plato, etc...
 
dutchfire said:
Diodebridge:


The smoothing happens with a condensator.
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Yes, thats exactly it. Iv always been impressed by the simplicity and power of this design.

Your turn.
 
Who first used matrices to solve systems of linear equations?
 
I don't think it was Gauss, matrices were a surprisingly late invention.

Cayley maybe?
 
Well I checked mathworld, Cayley was the first to use the modern terminology :)

Do you mean who first used determinants to solve systems of linear equations?
 
You still haven't learnt his name, Al-Khwarizmi even although I told you it in another thread, and he's a Great Scientist in CivIV? ;)

I think Al was more a polynomial than a linear equations guy though...
 
A Chinese mathematician then?

EDIT: Was thinking Sun Tzu (not the art of war guy, the other one). I don't think it was him though.
 
Ah, Jiu Zhang Suan Shu who could forget him ;)

Does that mean I'm up next?
 
Yes, you're up.

Jiu Zhang Suan Shu is the name of the text :p
 
I call all my books him or her depending on content ;)

I'll think of something, probably be another maths one.
 
OK. John Nash was one of the inventors of a board game which can never end in a draw.

What game is it, and proving that the n-dimensional variant can't end in a draw either also proves a famous theorem, what theorem is that? And what has it got to do with dropping a map of the Earth on the floor?
 
I just wiki'd that, it's from Star Trek :lol:

So no it's not that ;)

EDIT: And dropping a map of Earth on the floor wouldn't apply to the theorem if you are in outer space at the time.
 
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