Cumulative General Science/Technology Quiz

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Well, this is a bit on the musical side, but what was the first comapny to make a commercially succesful electric guitar?
 
I think this question legitimately falls under the 'Technology' heading, so I wouldn't worry about it having to do with music. One could argue it has to do with Electronics, right? :)

My guess: Yamaha.

I seem to always see Yamaha electronic pianos, so maybe they were in the game from the beginning?
 
Lucky guess. :)

I'd like to see if any non-physicists can get a metrology question:

What's the difference between accuracy and precision?
 
Well I don't know in terms of Metrology, but in general terms accuracy means hitting the goal, and precision means reliably hitting the same target. So I would assume then in Metrology that accuracy is being correct about the weather details and precision is being right about the trend?
 
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