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  #261  
Old 07.12.2007, 11:59
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Re: Ask a Scientist

Apparently, there's a periodic table for booze:

http://www.zazzle.com/boozemail/prod...89599137382720


Cheers! *hic*

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  #262  
Old 07.12.2007, 12:01
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Re: Ask a Scientist

Then they have never been to Yorkshire: "Where theres muck, theres brass". Brass may not have status of gold, but the point is made.

dave


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The equivalent figure of speech in German is to turn sh1t to gold:

Man kann aus Scheisse kein Gold machen.

But the figure is often used for the few who succeed to turn sh1t to gold. And to save this thread from the Language Corner: It is scientifically proven that sh1t can't be turned to gold.
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  #263  
Old 13.12.2007, 10:56
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Re: Ask a Scientist

Will my iron-free shirt NEVER rust?
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  #264  
Old 13.12.2007, 11:40
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Re: Ask a Scientist

Engineering question - how do automatic flushing urinals work? Are they timer or volume or flow based?

gruss
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  #265  
Old 13.12.2007, 11:43
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Re: Ask a Scientist

Depends on the set-up. Some urinals are all linked together and have one master flush that is timed.

The second type of automatic flushing urinal has an infrared sensor that detects movement and hence flushes when the person leaves.

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Engineering question - how do automatic flushing urinals work? Are they timer or volume or flow based?

gruss
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  #266  
Old 13.12.2007, 12:05
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Re: Ask a Scientist

If you could create a large sphere where the inside of the sphere was mirrored and you stepped into the mirror:

In the dark, of course you would see nothing.

What would happen of you then introduced light to the scenario?

Would the darkness consume the light? Would the light consume the darkness?

Scientific opinions and explanations please.
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  #267  
Old 13.12.2007, 12:15
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Re: Ask a Scientist

Darkness is merely an absence of light, so the sphere should fill with light
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  #268  
Old 13.12.2007, 12:27
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Re: Ask a Scientist

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Darkness is merely an absence of light, so the sphere should fill with light
But what would happen to colour? How exactly would the colour and light behave?

if I was in the sphere, and my body and clothes, say, add colour into the mix. Does the swirling colour mixture in the reflective sphere become consumed by the ever reflecting light? <insert star wars comment here> Does some kind of battle between the darkness and the light take place?</insert star wars comment here>

Am I just blinded by the light?
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  #269  
Old 13.12.2007, 12:31
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Re: Ask a Scientist

What we think of color is light of a particular wavelength. I don't think I really follow what you're asking.

Darkness is just an absence of light. I'm not sure I see how this experiment is any different than walking into a dark room and turning the light on.

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But what would happen to colour? How exactly would the colour and light behave?

if I was in the sphere, and my body and clothes, say, add colour into the mix. Does the swirling colour mixture in the reflective sphere become consumed by the ever reflecting light? <insert star wars comment here> Does some kind of battle between the darkness and the light take place?</insert star wars comment here>

Am I just blinded by the light?
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  #270  
Old 13.12.2007, 12:33
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Re: Ask a Scientist

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If you could create a large sphere where the inside of the sphere was mirrored and you stepped into the mirror:

In the dark, of course you would see nothing.

What would happen of you then introduced light to the scenario?

Would the darkness consume the light? Would the light consume the darkness?

Scientific opinions and explanations please.
Is the interior of the sphere perfectly reflective, with no loss of light as it bounces (waves?) around?

Are you talking about one flash of light, or a sustained source?

Do you absorb any light energy yourself, or for the purposes of the experiment are you infinitesimally small?
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  #271  
Old 13.12.2007, 12:33
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Re: Ask a Scientist

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...
Am I just blinded by the light?
revved up like a deuce,
another runner in the night
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  #272  
Old 13.12.2007, 12:33
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Re: Ask a Scientist

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What we think of color is light of a particular wavelength. I don't think I really follow what you're asking.
If I stepped into a large sphere that was mirrored on the inside, as I am now, I would see nothing, because I would be in complete darkness. But what would I see if I switched on a light inside the sphere?
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  #273  
Old 13.12.2007, 12:35
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Re: Ask a Scientist

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If I stepped into a large sphere that was mirrored on the inside, as I am now, I would see nothing, because I would be in complete darkness. But what would I see if I switched on a light inside the sphere?
You'd see the reflective walls of the sphere and some misshaped reflections of yourself.
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  #274  
Old 13.12.2007, 12:35
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Re: Ask a Scientist

You'd see yourself in the mirrored surface.

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If I stepped into a large sphere that was mirrored on the inside, as I am now, I would see nothing, because I would be in complete darkness. But what would I see if I switched on a light inside the sphere?
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  #275  
Old 13.12.2007, 12:37
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Re: Ask a Scientist

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You'd see yourself in the mirrored surface.
But it's a sphere, and every surface point would be reflecting every other, plus I would invariably be moving.
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  #276  
Old 13.12.2007, 12:40
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Re: Ask a Scientist

Well, the light would be bouncing of the surfaces but that wouldn't change how your eyes perceived the light and the subsequent image of yourself on the mirror.

Why would you be invariably moving?
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  #277  
Old 13.12.2007, 12:40
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Re: Ask a Scientist

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But it's a sphere, and every surface point would be reflecting every other, plus I would invariably be moving.
Whatever - so the reflection would also be moving. Your light source would be a point source.
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  #278  
Old 13.12.2007, 12:45
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Re: Ask a Scientist

This is only a half sphere, but you can imagine how the reflection of yourself you'd see would be rather skewed (i.e. on the inside surface of the sphere wherever you look at it):



Tell you what, bring a large christmas tree ornament (Sphere) to the x-mas party, maybe we can break it in a way that allows you to get an idea
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  #279  
Old 13.12.2007, 12:45
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Re: Ask a Scientist

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Whatever - so the reflection would also be moving. Your light source would be a point source.
That's a parabolic mirror. I'm asking about a spherical mirror. even if I wasn't moving and the light source was static.

The reflection of colour would be everywhere as would the reflection of light.

Perhaps I am lacking in the understanding of the properties of light, but what would the behaviour or the (various) wavelengths of light be in the sphere?
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  #280  
Old 13.12.2007, 12:49
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Re: Ask a Scientist

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Well, the light would be bouncing of the surfaces but that wouldn't change how your eyes perceived the light and the subsequent image of yourself on the mirror.

Why would you be invariably moving?
Even if I wasn't moving. Wouldn't everything, in terms of light and reflection be everywhere in the sphere, no one point or area in the sphere would show a reflection of me because every other point in the sphere would be reflecting another point.

Kind of like a cartesian product of light.
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