If E=MC Squared, Speed of Light 186,000 Miles Per Second

[Marcel]

What is the Speed of Dark?

Anyone here know?

[Willow]

Technically dark the absence of light. 

Therefore, approximately 186,282 miles per second.  Light leaves as quickly as it arrives.  that's true on multiple levels.    

So here's an interesting question.  If we build a room with walls, ceiling and floor of very high quality mirror the only visible items in the room being an incandescent light fixture and a wireless camera.  When we switch on the bulb, will the room just get brighter and brighter (and hotter and hotter) as the bulb burns?

When we switch off the bulb, how long will it take the room to get dark?

Is that what you asked, Al?   

[RoadKill]

The opposite of light speed is the speed of over-legislated government. I dont believe the mathematical equation for dark speed has been completed (I aint smart 'nuff to understand it anyhow)but Dark speed is obviously faster than guberment speed even if just slightly.

[elraque]

There's really no such thing as light. Light is really only the absence of dark. Dark is what makes everything work.

Here's a link that explains it...

http://www.ed-cindy.com/gpage4.html

(humor intended, and the link is pretty funny).

[Challenger]

I just took two aspirin because I was trying to figure out if it was zero degrees outside and it was going to be twice as cold tomorrow, how cold was it going to be?  AND NOW THIS QUESTION!

[RoadKill]

There's really no such thing as light. Light is really only the absence of dark. Dark is what makes everything work.

Here's a link that explains it...

http://www.ed-cindy.com/gpage4.html

(humor intended, and the link is pretty funny).

So rather than being enlightened by that link...I have actually been "Dark sucked" ?  
Thats OK... I kinda liked it! That was some funny stuff !  

[Jabba]

E=MC Squared is wrong.  Al can attest to this.  it's actually... E= (DELTA) M * (C Squared)  that is the CHANGE in mass.  

Take a uranium atom, and a neutron, and weight them.  Now, crash them together... it fissions (blows up) and makes 2-7 new atoms, plus some more neutrons.  Gather up ALL the pieces and weigh them.  It'll be lighter than before.  I forget exactly how much the difference in mass is, but it's on the order of magnitude of the weight of an electron * 10 -55power.  an electron is VERY light compared to neutrons or protons.

THAT is what became ENERGY in the E=delta MC Squared equation.  I ask... how the HELL did Einstein know this, when the whole thought of atoms was theoretical?  Personally, I think he was visited by Aliens that clued him into it.

Now onto Star Trek... and Matter Anti-Matter reaction.  Scientist think this COULD be real.  A proton weighs something like a electron x 10 to the 55th power.  (All my numbers are based on my nuclear training from 1990.  So don't pick on the numbers OK?)

If you have a proton, and a negatron and put them together, they totally cancel each other out!  work that mass into energy calculation and you'll see that it will produce 2 * 10 to the 55th power times the energy of a U-235 fission!

Ok... everyone's eye's TOTALLY glaze over?

How about this... put that power into a motorcycle, and you better hang the flock on!!

Jabba

[Jabba]

I just took two aspirin because I was trying to figure out if it was zero degrees outside and it was going to be twice as cold tomorrow, how cold was it going to be?  AND NOW THIS QUESTION!

Absolute zero is 0 Kelvin.  Kelvin temp is about Celsius + 273.  So convert 0F to Kelvin and it's 255K.  Double that to 510K.  Convert back to Celsius, 237C then back to Fahrenheit, and you get the answer of 460F. 

So... scientifically, twice as hot as 0F, is 460F.
 

I don't know WHY I got my egghead hat on today....

Jabba
 

[Ice]

YOu bunch of Geekssss!!!!

[Highbinder]

If darkness is the absence of light...dark doesn't move...answer 0...get some sleep Al.... 

[Jeff K]

Technically dark the absence of light. 

Therefore, approximately 186,282 miles per second.  Light leaves as quickly as it arrives.  that's true on multiple levels.    

So here's an interesting question.  If we build a room with walls, ceiling and floor of very high quality mirror the only visible items in the room being an incandescent light fixture and a wireless camera.  When we switch on the bulb, will the room just get brighter and brighter (and hotter and hotter) as the bulb burns?

When we switch off the bulb, how long will it take the room to get dark?

Is that what you asked, Al?   

My question is
If you only have a light fixture where did the light come from? 

[Jabba]

Technically dark the absence of light. 

Therefore, approximately 186,282 miles per second.  Light leaves as quickly as it arrives.  that's true on multiple levels.    

So here's an interesting question.  If we build a room with walls, ceiling and floor of very high quality mirror the only visible items in the room being an incandescent light fixture and a wireless camera.  When we switch on the bulb, will the room just get brighter and brighter (and hotter and hotter) as the bulb burns?

When we switch off the bulb, how long will it take the room to get dark?

Is that what you asked, Al?   

My question is
If you only have a light fixture where did the light come from? 

The LAYMAN POV that all fixtures have lamps.

Jabba

[Willow]

My question is
If you only have a light fixture where did the light come from? 

The LAYMAN POV that all fixtures have lamps.

An excellent point.  Should I have specified an equipped light fixture?  I really thought a fixture without a bulb would simply be an electrical fixture.

I guess you can figure out who changes the lamps in my house.    

You'll notice I also avoided the Clintonian argument by eschewing the use of the verb to be.      

[lee]

If two days from day before yesterday was Friday, what would today be?

[bigguy]

OK, sealed up room, eternal light ....... Isn't there supposed to be a cat involved with this somewhere?

[elraque]

Do you mean Schroedinger's cat?

[Marcel]

My Dad was on the phone and said he had seen a Bill Board earlier that day.

It stated, "What is the Speed of Dark"?

Was the inspiration for my question.

Thought everyone could have some fun with it.

AL

[FryeVRCCDS0067]

What is the Speed of Dark?

Anyone here know?

Dark is already present and only becomes visible in the absence of light. If dark is already there it has beat the light so "dark is faster than light".

Soooo, even Einstien knew the Black ones were the fastest!!!

[Kaiser]

Soooo, even Einstien knew the Black ones were the fastest!!!

...or Darksiders.

[X Ring]

What is the Speed of Dark?

Anyone here know?

Dark is already present and only becomes visible in the absence of light. If dark is already there it has beat the light so "dark is faster than light".

To make it even simpler, it's obvious dark is faster.  You can see light but you can't see dark it's so fast.

Marty

[Brad]

What is the Speed of Dark?

Anyone here know?

good writeup on the subject

http://www.useless-knowledge.com/1234/jan/article385.html

[Reb]

Just divide by zero

[B-Taz]

My favorite post on this board in the 1.5 years I've been reading! 

[Brad]

This sounds like the netflix commercial...........the answer is Thursday.

[RTaz]

My favorite post on this board in the 1.5 years I've been reading! 

of course it would be your favorite ...your a physics teacher.

[Mr Steve]

I've heard the phrase used "darkness fell" or "darkness falls", so considering an object here on earth falls at 9.81 m/s^2 then this would also be the speed of dark.  In other words dark must always be accelerating.

Those of you with a black bike will love that...