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How do we measure the energy of this light wave?



 
 
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  #11  
Old June 30th 07 posted to sci.physics.relativity
guskz@hotmail.com
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Posts: 2,771
Default How do we measure the energy of this light wave?

On Jun 30, 7:11 am, Bilge wrote:
On 2007-06-26, wrote:



Since energy is never lost (a dead battery emitted energy away before
it became dead).


Two polarized same mono-frequency light waves(or lasers) with a
TRILLION volts of energy are exactly 90 degrees out of phase and along
the same trajectory thus due to superposition will they be invisible?


Will they be harmless?


Will we be able to notice the difference between them and an empty
space?


Will you ever grow up?


Why I'm probably twice your age "my" child.

I am stuck on band aids because bands aids is stuck on me.


Ads
  #12  
Old June 30th 07 posted to sci.physics.relativity
Randy Poe
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Posts: 8,017
Default How do we measure the energy of this light wave?

On Jun 26, 9:31 pm, " wrote:
On Jun 26, 6:11 am, Randy Poe wrote:



On Jun 26, 3:57 am, " wrote:


Since energy is never lost (a dead battery emitted energy away before
it became dead).


Two polarized same mono-frequency light waves(or lasers) with a
TRILLION volts of energy are exactly 90 degrees out of phase


You mean 180 degrees, I think.


and along
the same trajectory thus due to superposition will they be invisible?


Will they be harmless?


Will we be able to notice the difference between them and an empty
space?


Nature saves us from this paradox: Since the two sources can't
really be exactly on top of each other but must be some
distance apart, there will always be places where they add
constructively (in phase) as well.



Ok but as I showed above even a dead battery is an energy conservation
equation.


Everything is an energy conservation situation.


Therefore because of what you said, then lets "exagerate a little" and
say the two waves (coming from the same or as well **direct opposite**
dirfection) are both get caught in the EXACT same GRAVITY pull...so
strong they become a perfect orbit around the gravity pull....say
always "R" distance.


If two traveling waves are coming from opposite directions
they can't cancel out.

Do some googling on "destructive interference" and "energy
conservation". Your question has been asked millions of
times.
http://www.physlink.com/Education/AskExperts/ae155.cfm

The short answer is that energy is always conserved. If
you cook up a situation where it isn't, you've left something
out.

- Randy

  #13  
Old June 30th 07 posted to sci.physics.relativity
Androcles
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Posts: 4,358
Default How do we measure the energy of this light wave?


"Randy Poe" wrote in message
ups.com...

: If two traveling waves are coming from opposite directions
: they can't cancel out.


HAHAHAHA!
Another Poe classic goofball!

:
: Do some googling on "destructive interference" and "energy
: conservation". Your question has been asked millions of
: times.
: http://www.physlink.com/Education/AskExperts/ae155.cfm

But Randy, you incoherent raving lunatic, that page says that two
travelling waves coming from opposite directions DO cancel out!
Quote:
Now, turn the second one on, too. Result? No wave on the circuit.
Unquote.


:
: The short answer is that energy is always conserved. If
: you cook up a situation where it isn't, you've left something
: out.

Like the compressed spring in the pole and barn situation?


 




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