what colour is water(or does it have a colour)?

d.anthony · 26-01-2011 12:48am

Are those my feet?

northernpower · 26-01-2011 12:49am

Helix wrote: »

ta'ra now

ScienceNerd wrote: »

The quote he posted said water was blue

apologies - i read it as him saying colourless, thats what i get for not reading the full post

GLaDOS · 26-01-2011 12:49am

Ponster wrote: »

Naaa, in fact light is the only thing that we can see; everything else is invisible as we need light to bounce of objects in order to perceive them

That was my train of thought originally, it's times like these i wish I'd continued with physics!

Pace2008 · 26-01-2011 12:51am

karlog wrote: »

It's not?

No, it's caused by matter warping spacetime. All objects with mass, spinning or not, attract each other, but it only becomes apparent with really massive objects like planets, moons or suns.

It's not an immediately intuitive concept but if you check out a few Youtube vids or the like you'll be able to get a rudimentary understanding (which is all I have) of how it works.

sheesh · 26-01-2011 12:52am

phasers wrote: »

This is, without a doubt, the stupidest question I've seen in an awfully long time.

How the fcuk could water be blue? Why didn't one of you just go to the bar and ask for a glass of bloody water?

Now now there are no stupid question....

unfortunately there are of course monumentally stupid people.

Tar.Aldarion · 26-01-2011 12:53am

if anything the earth spinning reduces the affect of gravity(centrifugal force). Also, look at how another body such as a planet or moon can affect another, the moon affecting our oceans

F = G(m1 * m2)/(r^2)

can't believe i remeber that

RichieC · 26-01-2011 12:53am

it's only visible because light refracts through it.

GLaDOS · 26-01-2011 12:57am

RichieC wrote: »

it's only visible because light refracts through it.

You can only see anything because of light. How light reacts with objects when it reflects off them is what creates the colours we perceive.

wonton · 26-01-2011 1:05am

so I'm right i guess? I hope he pays up.

I can imagine him doing something like running it under the tap before paying up and saying" I hope you don't mind a blue tenner".

Actually though, bringing up things that were on qi when drunk and making bets would be a good way of making money .

Pace2008 · 26-01-2011 1:06am

phasers wrote: »

This is, without a doubt, the stupidest question I've seen in an awfully long time.

How the fcuk could water be blue? Why didn't one of you just go to the bar and ask for a glass of bloody water?

Sure we only need to look at the Sun to see it orbits the earth.

Marcus.Aurelius wrote: »

On a sidenote, dude, it's wikipedia. If there's published papers, that's one thing. I'm not saying there aren't, but Wiki is hardly reliable.

Maybe you could have tried one of the linked sources, a published paper from PubMed?

Tar.Aldarion · 26-01-2011 1:08am

Pace2008 wrote: »

Sure we only need to look at the Sun to see it orbits the earth.

Alas we will never see the underside of this earth disc we live on

sheesh · 26-01-2011 1:39am

karlog wrote: »

It's not?

gravity is a force of attraction in nature between 2 objects the force of attraction is proportional the the mass and the square root of the distance between them i think

Marcus.Aurelius · 26-01-2011 1:53am

The Gnome wrote: »

I assume the Journal of Chemical Education will suffice?

It will indeed, thanks for pointing it out.

Ah, Science.

Marcus.Aurelius · 26-01-2011 1:55am

Helix wrote: »

it hurts doesnt it

Well a kettle of it would scald slightly.

Oh I see what you mean. No, not really, that's Science, constantly refining itself. It's actually a pleasure to be corrected for a change. Thank you.

Marcus.Aurelius · 26-01-2011 1:59am

sheesh wrote: »

gravity is a force of attraction in nature between 2 objects the force of attraction is proportional the the mass and the square root of the distance between them i think

Yes, you have it right more or less. I remember it from LC Physics.

The Law of Universal Gravitation states that any two point masses in the Universe attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

The constant used in the direct/inverse relationship is the Universal Gravitational Constant.

Dave! · 26-01-2011 2:07am

Boy am I glad I only saw this thread after the answer was posted

starbelgrade · 26-01-2011 2:11am

Tar.Aldarion wrote: »

Alas we will never see the underside of this earth disc we live on

I've seen it.

It says "Made in Japan" on it.

Tar.Aldarion · 26-01-2011 2:13am

thought it would be a china job like my school ruler meself

starbelgrade · 26-01-2011 2:15am

Maybe it was a typo.

Tar.Aldarion · 26-01-2011 2:16am

>_>
/racist remark
<_<

:pac:

take everything · 26-01-2011 2:40am

Water is blue.
I see blue as red though.
So it's red.

Jesus Wept · 26-01-2011 2:59am

Calm down you crazy bastards.

HxGH · 26-01-2011 3:08am

Depends... You colourblind? :P

WindSock · 26-01-2011 3:10am

It's blue when it gets deeper as this is light condensed. Red is the first colour to leave the spectrum.

HxGH · 26-01-2011 3:15am

WindSock wrote: »

It's blue when it gets deeper as this is light condensed. Red is the first colour to leave the spectrum.

Redshift and blueshift?

WindSock · 26-01-2011 3:20am

HxGH wrote: »

Redshift and blueshift?

Hmmm?

I am only basing this on my experiences with scoobie diving. And glaciers.

HxGH · 26-01-2011 3:24am

WindSock wrote: »

Hmmm?

I am only basing this on my experiences with scoobie diving. And glaciers.

Just a bit of LC physics.

Increase in electromagnetic wavelength = redder colour
Decrease in electromagnetic wavelenth =blue-er colour

http://en.wikipedia.org/wiki/File:Redshift_blueshift.svg

One reason why Physics is so enjoyable to learn. It can be applied in real life. :rolleyes:

WindSock · 26-01-2011 3:32am

HxGH wrote: »

Just a bit of LC physics.

Increase in electromagnetic wavelength = redder colour
Decrease in electromagnetic wavelenth =blue-er colour

http://en.wikipedia.org/wiki/File:Redshift_blueshift.svg

One reason why Physics is so enjoyable to learn. It can be applied in real life. :rolleyes:

Ah, that is the term. Ok.

...

What physics doesn't explain is why you came to use the :rolleyes: smiley in your post, unless it was unintended sarcasm :pac:

HxGH · 26-01-2011 3:37am

WindSock wrote: »

Ah, that is the term. Ok.

...

What physics doesn't explain is why you came to use the :rolleyes: smiley in your post, unless it was unintended sarcasm :pac:

That smiley can be used when one wishes to express extreme exhaustion and is no longer aware of what he/she is typing anymore.

Good night sir.

PS- I too love diving!

Last spot was down Hook Head.
ANYWAY, good night.

Adyx · 26-01-2011 6:13am

Polar bears are black!!!!!!!!!!!!

Ponster · 26-01-2011 10:13am

ScienceNerd wrote: »

That was my train of thought originally, it's times like these i wish I'd continued with physics!

I thought you had with a name like Science Nerd

I studied Optics for 5 years at collage. It's rare that I find a thread in AH that I can relate to !

anorange · 26-01-2011 12:00pm

Snake Pliisken wrote: »

Watch more QI. Fry says all kinds of quite interesting stuff- like the colour of pure water being a very slight blue but this isn't observable in small quantities, like your puny glass or dirty tumbler.

Stephen Fry wouldn't lie.

http://www.youtube.com/watch?v=mPvbrOEpDdI

Duggy747 · 26-01-2011 12:06pm

Ring up the inventor of water and ask him.

jackiebaron · 26-01-2011 1:12pm

wonton wrote: »

Drunk in the pub the other night we ended up debating about the colour of water( I know what you're thinking, "calm down you crazy bastards") and even ended up putting a 10 euro bet on it.

so while im waiting on my email response from stephen fry

do you think water is blue or clear?

also whats the most ridiculous thing you have got into a debate in a pub about?

So what colour is water at night-time?
FFS!

--Kaiser-- · 26-01-2011 1:41pm

Water waste of time

Oink · 26-01-2011 2:00pm

The Gnome wrote: »

I assume the Journal of Chemical Education will suffice?

/thread

Oh wait, this is AH. carry on then.

Spore · 26-01-2011 2:02pm

Got into a debate with a lad about perpetual motion... his idea was to put an electric generator at the foot of a waterfall (so far, so good) but he then thought you could use the generator to pump the water back up to the top of the waterfall where it would then flow over the precipice and onto the generators thus continuing ad infinitum...

poor lad couldn't figure out what was wrong with his idea!

Pumping the water back up would take more energy than the generator's could produce, that and one of the laws of thermodynamics say its impossible

Rented Mule · 26-01-2011 2:03pm

I would say that water is aqua coloured.

Irishpimpdude · 26-01-2011 2:13pm

I wonder what colour vodka is since water and vodka look the same in a glass, im gonna try find a swimming pool and fill it with vodka, ah dont mind me thats the vodka talking pity water dont get ya drunk

Big Nasty · 26-01-2011 2:58pm

wonton wrote: »

Drunk in the pub the other night we ended up debating about the colour of water

wonton or wanting?

GLaDOS · 26-01-2011 5:18pm

Ponster wrote: »

I thought you had with a name like Science Nerd

I took the biology route in college, still have the interest in physics though

starbelgrade · 26-01-2011 6:07pm

Why is this thread still going?

It should have ended after 5 posts...

1. What colour is water?

2. It doesn't have a colour

3. Yes it does - it's blue

4. What - are you mad?

5. No. Here's a link to prove it, you dope.

/ thread.

Craebear · 26-01-2011 6:11pm

GOD MADE WATER BLUE BECAUSE IT IS A PLEASING COLOUR TO OUR EYES!!!!!

Adam · 26-01-2011 9:05pm

Craebear wrote: »

GOD MADE WATER BLUE BECAUSE IT IS A PLEASING COLOUR TO OUR EYES!!!!!

then why did he make vaginas pink?! i dont like pink!

Craebear · 26-01-2011 9:19pm

Ah you see gays like pink! God was clever there...wait wat..

what colour is water(or does it have a colour)?

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