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[IO9] Spacetime invisibility cloaks can hide entire events inside temporal voids - Page 12

post #111 of 139
Quote:
Originally Posted by Singular1ty View Post
This appears to make sense in conventional physics.

Problem is that this whole problem lies comfortably within the world of plank's constant and quantum mechanics, with some help from special relativity and general relativity.

There are a lot of problems with this idea.

The first is that to slow down the photon it needs to be shot into a very dense object.

The essential problem is that this won't be a simple machine with an off on switch.

Photons behave like waves when they are interacting with other photons and like particles when they interact with matter (and I stress the word LIKE in both cases).

They are chargeless and have no mass. That means that your machine cannot work on the basis of electromagnetism to slow down photons since a photon has no charge. And you can't use some sort of 'light field' because light will behave like a wave when it hits the field and won't be affected at all because there's no way to create a field where you can perfectly shift the phase and compensate for the different frequencies of light striking it fast enough to shield what's inside.

Anyways, theres one even bigger problem.

If at time=0 seconds there is light departing from the object to be shielded and at that instant the "machine" is turned on then you have the old image of the object still travelling to the observer at 3*10^8 meters per second (the speed of light).

But directly behind those lightwaves are now the ones that have been slowed down to around 26 meters per second.

At time=0 those two sets of photons are at the same point.

But in a mere second the first set has travelled several thousand times faster then the ones that have been slowed down.

So the observer sees the original image, but once those photons pass by him he no longer sees the original photons, and he cannot see the ones that have been slowed down because they are still a long ways off.

So all that he sees is a black bubble where the machine is, at short distances it means less then a second, at great distances it can mean several seconds.

In essence, this machine essentially makes a black bubble which is completely obvious to any observer.

What's even weirder is that once the machine is turned off, if the observer is far enough away, he will see the new "not slowed down" photons before he sees the ones that have been slowed down.
Are you a wizard?
post #112 of 139
So they successful found out a way to find the effects of drugs and alcohol without the use of drugs and alcohol? I applaud.
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post #113 of 139
But.. the persons operating within the cloak are still operating in real time? so if you activate the cloak it would look like your standing still for 60 sec- then you have 60 sec to go do something else - like crack a safe.. and you appear to just be standing still for 60 sec.. that is an issue though because if you are just standing there and do not interact with people talking to you they would know something is wrong..

I was initially hoping that you were going to be moving hyper fast.. now that would be cool. - still trying to wrap my brain around how this would work.
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post #114 of 139
CLOAK ENGAGED!!



one step closer to a real life nano suit
    
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post #115 of 139
Actually I think its more like Halo Reach Decoy's / With cloak...

Which is not possible, You CANT HAVE Decoy AND Cloak.. I think its a power limitation of the spartan suit.
Edited by Killam0n - 4/18/11 at 3:48am
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post #116 of 139
I think chuck norris used one of these devices to change the pokemon in this picture.

CHUCK NORRIS HAS ACCESS TO THIS DEVICE ALREADY. While doing a google search I found this proof.



That Pokemon should have clearly been a Koffing Not a Pikachu. How do I know this? I watched the entire first season of the show when I was younger, not having cable growing up sucked.
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post #117 of 139
i love how they say the "Observer". Kinda makes me feel like Peter Bishop from Fringe
post #118 of 139
I don't understand a lot of things in this thread. The OP sounds cool by the way, but bear with me:

Me and my girlfriend are both at home. I leave on a trip to go from Oregon to California and am traveling at 80 MPH (where legal ;3) and make the trip and return home. Who has aged more? The answer is we have both aged at the same rate.

Now, me and my girlfriend are both home. I take a ship to Alpha Centauri at .5 light speed and return. Who has aged more? Neither; we are still bound within the confines of linear time.

Right?
     
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post #119 of 139
Oh god girls.....girls everywhere.
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post #120 of 139
Quote:
Originally Posted by Siigari View Post
I don't understand a lot of things in this thread. The OP sounds cool by the way, but bear with me:

Me and my girlfriend are both at home. I leave on a trip to go from Oregon to California and am traveling at 80 MPH (where legal ;3) and make the trip and return home. Who has aged more? The answer is we have both aged at the same rate.

Now, me and my girlfriend are both home. I take a ship to Alpha Centauri at .5 light speed and return. Who has aged more? Neither; we are still bound within the confines of linear time.

Right?
No, technically you are younger. Its complex, but DO NOT trust the movies nor the writers. They are literally paid to make stuff up.

Your understanding of linear time is time significantly below the speed of light.

You see, in reality with your first example moving at 80 mph you have changed age. You are older then her, but by only maybe .00000001 seconds (rough guesstimation). Its so little you can drive at 80 mph for your entire life and never notice the difference.

You see, you only live in the world of 10-100 mph. The only time you are moving faster is when your on a plane, and even then its still too slow.

The world your in changes a lot when your moving at 299,792,457 meters per second. And it changes TREMENDOUSLY when your moving at 299,792,458 meters per second.

My first tip of advice, don't think that you know what happens when you move at 90% speed of light just because you are pretty sure its the same as when you move at 80 mph.

Your mistake is thinking that time is linear, for everyone, everywhere, everytime, and most importantly, at every speed. And its not. That is what lead Einstein to two of his three most famous contributions to physics.

Special relativity- Relativity while at a constant motion close to the speed of light
General relativity- Relativity while accelerating or decelerating close to the speed of light.
    
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