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is there anything you ALWAYS WANTED TO KNOW?

Raz said:
Why is it called "meanwhile" or "in the meantime"? It doesn't seem very mean to me.....stupid english. :X
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I would think this comes from mean as in the average or middle.
You have the mean of a range of numbers which is the average, so the time between two given points, now and now + time is the mean of that range.
 
xcidium said:
Why in google image search does a picture come up when you search, but then click on it, it says that the image is no longer there....My question is, how does Google know that it was there if it isn't there?

And another:

What is the strongest material/mineral/substance/whatever (weight to strength ratio) known to man?
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nanotube I think

http://en.wikipedia.org/wiki/Carbon_nanotube
 
xcidium said:
What is the strongest material/mineral/substance/whatever (weight to strength ratio) known to man?
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It depends a lot on what you consider strong, chemically, compressive, tensile, bounceability =)

Basically the more electrons the atoms share and the tighter the bonds between them are, the more strength the molecules have.

Diamond has very strong bonds but is a bit brittle because it is crystaline and can burn in certain environments.

Graphite (another carbon molecular structure) has stronger bonds <---> this way but very weak between layers.

Carbon nanotubes (they are all carbon forms because carbon bonds to itself easily and creates very strong bonds at that) which are a man made form, uses similar molecular structure as graphite but in a tube so it utilises the extremely strong bonds all over and doesnt have the weak inter-layer crappy ones graphite does and is fucking strong because of this.

http://en.wikipedia.org/wiki/Carbon_nanotube



[edit] bah beaten by wazza because i excessivly faffed =(
 
But are Carbon Nanotubes heavy?
Like say, compared (example only) to a spiders web. That shit is very light, but very strong.

I have no idea what I'm talking about. It was just a random driving thought I had this morning.
 
xcidium said:
material/mineral/substance/whatever (weight to strength ratio) known to man?
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Define strength.
Tensile?
reactivity?
compressive?
torsional?

silicon carbide alloys, diamonds, nanotubes, all are pretty fkn tough, yet all have weaknesses in some aspects or others.
 
So i was thinking, it was very hard but i did it, but i was woundering what happens when u compress helium or something that is lighter than air. Does it make it lighter or heavy or stay the same, my guess is that it stays the same but i not sure.

Cheers
 
xcidium - nanotubes i should think.
note, i didnt bother verifying that with any source, its just a guess :p

edit:
The tensile strength of carbon nanotubes has been theorized and simulated to be 130 GPaB&D compared to steel at <5 GPa and Kevlar at 3.6 GPa. The density of the carbon nanotubes (1300 kg/m3) is also lower than either steel (7900 kg/m3) or Kevlar (1440 kg/m3).
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Ok, I know nothing about politics and stuff, so I this Howard/Costello deal business has me confused.

They're saying John Howard said he'd retire after 1.5 terms yeah?
So if he had passed over the leadership to Costello, does that mean Costello would have automatically become prime minister, with no say from the public?
 
^ Yes, because we don't directly vote for the prime minister. We elect the party which chooses their own leader. So if Howard were to announce his retirement, the Libs would then choose a new leader who would become prime minister.
 
Oh come on, there is no comparing Sydney roads to anywhere.

About five generations of town planners need their arses kicked for Sydney roads.
 
Tried driving on the Central Coast?

It doesn't seem like there was any planning. Everything was just tacked on as an afterthought. Plus it seems like noone likes to take any risks anymore so every single slightly problematic turn ends up as traffic lights or a roundabout. It takes me half hour/forty-five to get to Gosford and it's a 40km drive! I guess that still probably has nothing on Sydney though, but it's infuriating as hell...
 
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