Cumulative General Science/Technology Quiz

[Mise]

Nope.

You bastard

 

[brennan]

You guys are gonna kick yourselves when I tell you...

 

[dutchfire]

Yes, that's it. For something to levitate in a magnetic field it has to be diamagnetic. If a dimagnetic object is placed in a strong enough inhomogenous field at the right place it can levitate.

Superconductors can be seen as "perfect diamagnets", that's why it's easy to get them to levitate.

Water is also diamagnetic, so it is possible to manage levitation with things that are mostly water.
These guys have made videos of a frog and a strawberry and other things levitating.

Your turn.

I visited that lab, and it's at the university I'll be studying next year

 

[History_Buff]

You guys are gonna kick yourselves when I tell you...

I looked it up. That's dirty

 

[Mise]

Give us a clue!

 

[brennan]

Chances are you're looking at some right now...

 

[Catharsis]

I'm looking at a picture of two rabbits fighting. Is that in any way close to being the answer?

 

[brennan]

It depends on your monitor...

 

[nonconformist]

Liquid crystal?

 

[brennan]

BINGO!

Smectic and nematic types are variations in the amount & type of molecular ordering present within liquid crystals. There are others too.

Your turn.

 

[Perfection]

I'm looking at a picture of two rabbits fighting. Is that in any way close to being the answer?

Are they These Rabbits?

 

[brennan]

In the absence of reply from that nice Mr Nonconformist, I suggest we go to open floor.

 

[nonconformist]

I thought I'd got it wrong again....
open flooooooooooooor

 

[Brighteye]

What does M-mode of an ultrasound machine do?

 

[J-man]

Ok I'll admit, I used wikipedia so I'll post the answer in a spoiler:

Spoiler :

M stands for motion, it enables to see motion

 

[ori]

it allows the depiction of motion within the examined tissue. more exactly it depicts the depth in the x-axis and time in the y-axis so that the examiner can discern movement of surfaces within the beam.

 

[Brighteye]

it allows the depiction of motion within the examined tissue. more exactly it depicts the depth in the x-axis and time in the y-axis so that the examiner can discern movement of surfaces within the beam.

Quite so: your question.

 

[ori]

ok this is again more history of science:

explain Charles Darwin's theory of Pangenesis

 

[brennan]

Never heard of it.

 

[ori]

Never heard of it.

for some reason it is not his most famous work