Question of the Day (29/11)


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Question of the Day (29/11)

Postby EPelle » Mon Nov 28, 2005 11:27 pm

:: If the speed of light is 299 792 458 m/s, what is the speed of dark?
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Postby big mac » Tue Nov 29, 2005 3:01 am

Darkness does not exist, it is merely a human term given to absence of light. This is in the same vein as cold, cold itself does not exist, it just refers to the absence of heat to an extent.
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Postby SQUACKEE » Tue Nov 29, 2005 4:05 am

the speed of dark is the same as light. in other words if your in a room without any light source except a litebulb and you turn that lightbulb off, who fast does it get dark? the absence of light travels at 186,000 miles per secound. unless your watching a sunset! and like a refridgerator, cold is the absence of heat. your refrigerator doesnt make the milk cold. it extracts the heat from the milk.
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Postby EPelle » Tue Nov 29, 2005 4:14 am

SQUACKEE wrote:the speed of dark is the same as light. in other words if your in a room without any light source except a litebulb and you turn that lightbulb off, who fast does it get dark?

There must be some reaction time between the light turning off and the darkness "filling" the room, as light and dark do not coexist, or?
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Postby SQUACKEE » Tue Nov 29, 2005 6:06 am

where does the light go? :shock: oh my brain hurts! :x
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Postby slowcoach » Tue Nov 29, 2005 8:27 am

The light bursts on the scene in a blaze of glory, but retreats slowly.

The reverse is true of the dark: it vanishes like a thief in the night, but creeps up on you gradually.
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Postby tafnut » Tue Nov 29, 2005 9:09 am

But is it arriving as particles (photons) or as waves (setting up interference patterns)?

Is its speed the Universal Speed Limit? I read Hawking one time (until my brain froze up - then I got out my 'Calvin & Hobbes' collection (excellent Xmas gift - the collected set, retail $150, but I've seen it for $99) and thawed my brain), and learned the following [caution - Brain Freeze Zone]:

If you have a molecule of Oxygen (or Hydrogen or any two-of-the-atom molecules) - O2 - the atoms spin in opposite directions (up or down). But the direction they spin is totally dependent on the observation, i.e., one time it's spinning up, the next instant it's down (feeling frosty yet?).

BUT . . . (insulate brain immediately), if you separate the two atoms and move them to opposite sides of the universe (roughly 35-40 billion light-years apart, I seem to remember), and observe the spin of one of the atoms, its twin will always be the opposite, SO . . . (owww) if you observe one up, the other will instantly be down. How is this 'communicated'?

Now build yourself a quantum computer, the one that uses the quantum levels of atoms as its 1s and 0s, and use the spins as your binary data, and your computer can transmit information across the universe INSTANTLY (OWWW!). How's that for busting the Speed Limit? ["How fast was I going, Officer?" . . . "Uh, infinity."]
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Postby SQUACKEE » Tue Nov 29, 2005 9:52 am

i like totally get it dude. and infinity.....nothin. the last 100m of an all out 800. dont tell me al einstein didnt go to the track.
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Postby tafnut » Tue Nov 29, 2005 10:03 am

SQUACKEE wrote:i like totally get it dude. and infinity.


YOU probably do! I'm too left-brained to get it. You right-brained people grasp the inconceivable a lot easier. 8)
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Postby SQUACKEE » Tue Nov 29, 2005 10:23 am

the only thing i havent figured out yet is as follows-

we can go to the moon but we cant make instant mashed potatoes taste better.
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Postby mcgato » Tue Nov 29, 2005 1:47 pm

the only thing i havent figured out yet is as follows-

we can go to the moon but we cant make instant mashed potatoes taste better.

I have a degree in physics and I work for a major food company, so maybe I can answer this.....
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Postby SQUACKEE » Tue Nov 29, 2005 2:00 pm

mcgato wrote:
the only thing i havent figured out yet is as follows-

we can go to the moon but we cant make instant mashed potatoes taste better.

I have a degree in physics and I work for a major food company, so maybe I can answer this.....


oh my goodness, mcgato, you may be my only hope. and if you are, i will finally know everything. :P
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Re: Question of the Day (29/11)

Postby bambam » Tue Nov 29, 2005 8:27 pm

EPelle wrote::: If the speed of light is 299 792 458 m/s, what is the speed of dark?


That's a Steven Wright joke
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Re: Question of the Day (29/11)

Postby bad hammy » Tue Nov 29, 2005 8:30 pm

bambam wrote:
EPelle wrote::: If the speed of light is 299 792 458 m/s, what is the speed of dark?


That's a Steven Wright joke

I bet Steven Wright never said that the speed of light was 299,792,458 m/s in his life. :wink:
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Postby jhc68 » Tue Nov 29, 2005 10:32 pm

My favorite Steven Wright joke:

I was walking along the street the other day and all of a sudden I couldn't see a thing... the prescription for my glasses had expired.
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Re: Question of the Day (29/11)

Postby wamego relays champ » Wed Nov 30, 2005 6:58 am

bambam wrote:
EPelle wrote::: If the speed of light is 299 792 458 m/s, what is the speed of dark?


That's a Steven Wright joke



And I think his follow up line was...."If you're traveling in a car at the speed of light and you turn your headlights on--will they work?"
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