Cumulative General Science/Technology Quiz

[brennan]

I looked up 'annulus' on wiki.

 

[Mise]

Well, if an annulus is a 2D ring and a Torus is a 3D ring, then the answer is a 3D Mobius strip? Is a Klein Bottle a 3D Mobius strip?

 

[Truronian]

Klein bottle?

(oh and really sorry if this is a totally wrong answer, I'm a music student after all. )

This is what I was going for... gluing together two mobius strips (on their edges) in 4-D space will yield a Klien bottle in the same way that gluing together two annuli (annuluses?) will yield a torus-doughnut thing.

Mirc's up...

Well, if an annulus is a 2D ring and a Torus is a 3D ring, then the answer is a 3D Mobius strip? Is a Klein Bottle a 3D Mobius strip?

Pretty much, although mobius strips require at least 3 dimensions and klien bottles at least 4.

 

[Mirc]

Great! Can't believe I got it right.

Sorry for being late, going to ask a question in a few minutes (1 hour at most).

 

[Niklas]

2.5 hours later...

 

[xienwolf]

So maybe his question should be: How fast was I traveling to have posted this question in time, in my frame of reference? ;p

 

[Niklas]

So maybe his question should be: How fast was I traveling to have posted this question in time, in my frame of reference? ;p

 

[Mirc]

Sorry.

Let's take something from a field where I know more about - Acoustics!

Might be a bit too hard or a bit too easy. Don't know.

The traditional piano (musical instrument) always hits a string at exactly 1/7 of the length of the string, the more accurate the better. Hitting a string at exactly this point makes the 7th .......... of any vibrating string inaudible.

What is [..........]?

 

[xienwolf]

Harmonic? Pretty sure on that one.

EDIT: Going to study for a test tomorrow, doubt I'll be back online tonight. So if I am right, then my question will be:

Name the 6 Flavors of quarks according to the Standard Model, and also provide the alternative names for the final pair (which were actually proposed first).

 

[Niklas]

I would say overtone, though the difference is little. I believe the harmonic is the frequency of the overtone, which would make it the overtone that is inaudible when the harmonic is removed. I could be wrong about the difference though since I learnt all of this, in Swedish, well over 10 years ago.

 

[Mirc]

I would say overtone, though the difference is little. I believe the harmonic is the frequency of the overtone, which would make it the overtone that is inaudible when the harmonic is removed. I could be wrong about the difference though since I learnt all of this, in Swedish, well over 10 years ago.

Yep, that's exactly where the trap was. The difference is very slight between harmonic and overtone, and in this case, overtone is what I was looking for. Niklas is up.

 

[Catharsis]

May as well answer xienwolf's question, even though it doesn't count, seeing as it's one I actually know for once: up, down, charm, strange, top, bottom, and the alternative names were truth and beauty.

 

[Niklas]

Alright, xienwolf will have to save his quarks for another day (I don't know it ).

A simple question from me (simple in structure at least): What is a Lutra Lutra?

 

[dutchfire]

I don't have the slightest idea.

 

[peter grimes]

I also have no idea... If I had to guess I'd say it's some sort of animal or plant. That guess is, of course, based on nothing

 

[Niklas]

A hint: it is a mammal. What, no experts on taxonomy around?

 

[Brighteye]

I had no idea at all. I looked it up because I was impatient.

 

[GoodGame]

Actually the fact that it was italicized in the question implied it was some kind of species, but I didn't catch on to that detail myself at the time.
Although the second word should have been all lower case for that to be true.

I also have no idea... If I had to guess I'd say it's some sort of animal or plant. That guess is, of course, based on nothing

 

[Aramazd]

A simple question from me (simple in structure at least): What is a Lutra Lutra?

A river otter?

 

[ggganz]

Well I looked it up earlier and he's right.