What exactly is Negative Energy?

I read about this yesterday and I'm wondering what exactly it's supposed to be. Where might you find some? Is it a special characteristic of any theoretical particle or is it only something you'd be able to attain in a very power particle accelerator?

The reason I'm asking is that I read about a possible way of FTL travel which involves using negative energy as the power source for a drive unit that would rip space in front of the ship. Then as the space repairs in the back it pushes the ship forward.

Anyway, any help would be appreciated.

 

Log in or Sign up to hide all adverts.

one word: gravity

 

Log in or Sign up to hide all adverts.

Log in or Sign up to hide all adverts.

With negative energy does that mean negative mass from
E=mc^2

 

How can negative energy exist in the first place? If we rearrange E=mc^2 for c, you get a root of a negative number which is not possible. Would this mean there is no speed limit for negative energy? Or am I just terribly confused?

Please Register or Log in to view the hidden image!

 

Yes, but you should be able to solve for c by rearranging the formula E=mc^2. You would then have to take the root of E/m. However, if negative energy exists, you would have -E/m, which gives you a negative number inside the root. This gives a nonreal answer, not the constant of light.

As you said, you should always get the same value, not a nonreal answer. So would this imply that negative energy cannot exist in our universe? Or does this equation simply not apply to it?

 

Hmmm, but if mass is just a measure of the amount of matter in an object how can it be negative? I mean, negative mass would mean there is less than 0 "amount" of matter. This would impose a vacuum or something along those lines wouldn't it?

 

Vaccum would be Zero mass,it has to be something more than that...black hole? just a stupid thought i know...

bye!

 

If you dont consider any object as stationary then, tachyons (the imaginary particles supposed to be traveling faster than velocity of light without violating rules of relativity,they"ll ne'r stop...)may have a negetive mass...
these particles are present in the world in which effect preceeds its cause,they theoritically will never stop...
bye!

 

I don't think it could be a black hole, simply because it's mass is very high.

Haven't read much about tacheyons so I can't really give my opinion on that, maybe James R. could fill us in

Please Register or Log in to view the hidden image!

 

y maths has never been all that good, I struggled like hell with calculus, but isn't it

E = mc^2

-> E = m
----
c^2

so

-E = -m
----
c^2

?


I'm sure to get -ve energy you'd ave to have -ve mass.

Zion

Isn't vacuum just the absence of mass while negative mass would be the opposite of mass?
Perhaps it's more anti-mass.

Keeping to E=mc^2, could we be talking about anti-/negative light as well

 

I agree, there is no particle which has negative mass. So, negative mass should be negative particle, if positive particle mean to particle which has positive mass.

What is the opposite of particle?

I think opposite of particle is not energy, even E=mc^2 separate mass and energy into to different side. Or, E/(mc^2)=1 which mean energy and mass are same side. If mass (positive particle) is opposite of Energy, then E/(mc^2) wil = 0 (same value of positive against same value of negative should be result zero)

then may question: is soul negative particle?

BTW, Xelios try to find the energy to make space travel, so how we can arrive to other galaxy if it take many years? even we have use speed of light spaceship... oops, I cannot continue....this is not the topic of souls......

 

I think the key to space travel is not to try and accelerate the starship to near light speed, but rather to find loopholes in relativity itself. For example, say one could travel faster than light IF they are travelling through a dimension seperate from the 3 spatial dimensions.

Accelerating a spacecraft to near light speed is simply too much work, there must be a way to bypass acceleration completely or maybe to make the destination come to us, not the other way around (bending space). That's what I think anyhow.

 

I think you right, Xelios.
May we consider to NOT bring our body in space traveling?

Our anchestors had learned the space, like Maya and Egypt. How they learned the space without telescopes and made calendar system without mathematic?
Should we learn from them?

 

A misunderstood statement.

Let me clarify.

for vaccum i said zero mass.the next statement i referred to was with respect to other post regarding negetive mass.i referred negetive mass as black hole.but i was wrong as black hole has positive mass,as James R rectified me...

bye!

 

Silly, I know, but would it perhaps be that the heart of the black hole is so dense it could exhibit negative mass properties?