We all speak of the speed of light
    (At least those who are somewhat bright),
    But none talk of the speed of dark.

    This is a thing that bears remark,
    And so I ask you, plain and stark,
    Just what *IS* the speed of dark?

    (Theorize, if you must,
    But it is *FACTS* that we most trust.)

26 responses total.

http://paul.merton.ox.ac.uk/science/darksucker.html

 re #0:  
 Before we find the speed of light in space
 We first must needs agree about "time" and "place".

 And is the universe a spinning bucket?
 Until agreement's reached I say we chuck it.

 So kindly please (in rhyme) define your terms
 Before opening up a giant can of worms..

We deal then with time and space
Of where light goes and in its place
The nothingness, the empty black
This is what you seek to track

I do not think dark faster still
Than light, so test it if you will
The self same test that shows lightspeed
Will work with dark the same, take heed.

Is light energy or does it have mass
Questions like these we pondered in class
We measured its effect on a metal plate
Electrons those photons did create

But how we wondered could it be true
that by light's momentum they did flew
Nonesense said we, light is energy
For it arrives in waves we see

Which is it we asked inquisitively
Is light matter or energy
Then came Al and to our surprise
Said it was both and won a prize

For everything in the universe that we know
Moves in waves no matter how slow
And it was this idea by which we came
To never think of things the same

Whenever I read this, I start going..

"The naming of cats is a difficult matter...."

well it is!

do you have any idea how long it took us to figure out Mughi's name?

With mine, they just came to me.  Guinness and Murphy just seemed 
right (and now Guinness proudly lives up to her stout description), 
Gizmo (Gizzy) has big ears and Cotton is all white.  I mean, they all 
have not so nice nicknames too, but we won't talk about that.

Hey now, Little Bastard can be said with love and affection. ;)

Sasha's name just came to me as well- she just looked like a Sasha
(after all, she looked like a long-haired Russian Blue). Leo did come
named, but as I cannot have a pet with that short of a name= I
lengthened it to Leopolde.

Then there are the nicknames... Sasha's- Boosh, Shimi, Monster, Grey
Beast... Leo's LeoBeo, Bobblehead, Danger Boy!!, and so on... It's
amazing they actually respond to their 'real' names.

Hey, we need more physics poetry!!!

/cues Flanders & Swann "First and Second Law" [of Thermodynamics]

http://nyanko.pwp.blueyonder.co.uk/fas/anotherhat_first.html

"And call him by his name!"

"Now this is this, and that is that..."

":unb;lkcy " unlucky

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speed of light is medium-dependent. 
  
read recently that some scientist created a medium in which
teh speed of light was measured at .... <fact>   38 miles per *hour*.
  
now *that* is some thick soup, eh?
  
Putting the Brakes on Light

Light travels 186,000 miles per second in a vacuum; 
in Lene Hau's lab, it ambles at 38 miles an hour

By John P. Wiley, Jr.
Related links

 http://www.smithsonianmagazine.com/issues/1999/june/phenom_jun99.php

So I'm readin' the paper and see where this Danish woman has slowed light 
down to 38 miles per hour. It takes a bit for that to sink in. But yes, 
that's per hour, and that is 38 miles. Right there in print. Now we have 
all known all our lives that in a vacuum light travels 186,000 miles per 
second and not all that much slower — for our purposes — when it is moving 
through air, say, or water. Light from the sun takes only eight minutes to 
reach us, some 93,000,000 miles away. If light dawdled along at 38 miles 
per hour, it would take approximately 275 years for a photon to move from 
the sun to the earth. Horses can run faster than 38 miles per hour, for 
goodness' sake. If you'll allow a little poetic license about light sources 
and whatnot, this woman has figured out how to catch a sunbeam.
  
=====...xnip...]]========
  

For a crash course in optics:

http://www.hydrooptix.com/hydroflash.htm

>>Horses can run faster than 38 miles per hour<<
Not in that thick soup you mention, I hope.

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