Recent content by Yor_on

Thanks for your answers Gregory. In Sweden I believe us to have around 5000 tons of nuclear waste from fission. And we don't really have any safe place yet to put them. So if the fusion scheme would be shown to work that would be a relief I believe. You write "The longest lived waste...

Just some questions. If I understand you guys (don't count on it though:) rightly. You are saying that we through fusion will be able to reuse the wastes we already have from fission? And after that, what kind of new radioactive materials will we see as the new wastes from fusion? I read...

Just want to say that this is a very nice thread :) And I like your links. ------- Btw: Corvetteguy, are you satisfied with the answers?

Maybe I'm using the wrong definitions Tim? But when you define a 'system' you automatically impose a boundary on it it seems to me? Just by defining it you have separated an area from 'something else'. And when one discuss the 'shell' and its 'negative pressure' one do seem to discuss a...

First of all Jonathan, thanks for your tries to explain. And I'm entirely serious at that. I'm rather boneheaded at times:) Perhaps I'm slowly seeing the 'light' here. But being as bad as I am at math, I'm still wondering. So on the other hand, don't get any hopes up:) If I get it...

Thanks for your patience again :) I looked up the 'Molecular Definition of Pressure'. http://www.grc.nasa.gov/WWW/K-12/airplane/pressure.html " From the kinetic theory of gases, a gas is composed of a large number of molecules that are very small relative to the distance between...

You definitely sound as you know 'your thing'. And you're quite correct in stating that i don't know very much about this:) But regretfully, I still don't get how Pervert thought here? "We find that when we pump a photon gas into the shell, the mass (Komar mass) of the photon gas is twice...

pervect says " We find that when we pump a photon gas into the shell, the mass (Komar mass) of the photon gas is twice as high as one would expect from the relation E/c^2, but that the total mass of the system increases only by E/c^2. Thus we conclude that the shell itself is getting lighter...

I don't think it's wise to blend 'digital' states with analogue. Your consciousness works with an awful lot of information every 'instant' sorting out what is important for you. It does not work at a 'bit state'/'rate'. The brain is not 'digital' and it's not 'bit by bit' serial.. Even...

Yes I think I see what you mean. You want to see it as wave packets being in different states. But what is invariant mass in that view? And before you say something:) Pinch yourself to see if you exist. That's what's confusing me. Not that we exist, but how to explain it as waves?

Let's say that we are inside a very dark room. Inside it we have objects that we assemble and disassemble. We find tools that seems to do a good work even though we can't really see those objects we are working on. We get inventive:) and make better and better tools, as we do it we seem to...

Thanks for that Naty. But I still don't get it:) You say "everything has relativistic momentum via mass-energy equivalence" But what kind of 'mass-energy' conversions are you referring to? The photon has no mass?

Dale, thanks for your patience here:) If one look at Earth and that experiment(s:) defining the speed of light. And especially those testing for that elusive 'ether'. And looked at Earth as a moving object, rotating, orbiting the sun, and traveling with the solar system at a speed of...

Thanks Edguy. So here energy and invariant mass is clearly divided as being two different subjects then? As both photons and invariant mass share momentum but seems very different in their properties. The only thing I see joining them is the idea of energy, but if so energy isn't mass alone...

Looking it up I found that the classical definition of momentum is p=mv where momentum (p) is mass (m) times velocity (v) and for an electromagnetic wave (photon) the momentum is h/λ where λ is the wavelength and h is the Planck constant. Both is accurate descriptions it seems, but do they...