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Apr
26
comment How can an electron fake a jet?
@DavidZ copying from pdf comes out in funny lines. The editor here fixes it, but the original is very unreadable so I prefer to give an image. I can leave the funny txt copy if you prefer . Also old papers which are images on pdf will become useless.
Apr
26
comment How can an electron fake a jet?
@DavidZ I do not know this. Why? I give the references. should I incorporate a line with the link in the image?
Apr
26
answered How can an electron fake a jet?
Apr
26
comment How can an electron fake a jet?
can you give a link to one of these atlas papers? It is not clear in your formulation when and how the exclusion happens, is the event excluded from the sample of electron candidate events?The detector you show is CMS, which has a particularly good electromagnetic detector. Atlas's is not so greathttps: twiki.cern.ch/twiki/bin/view/AtlasPublic/…
Apr
26
comment Can something without mass exert a force?
One should add that F=dp/dt for the argument to be complete
Apr
26
revised Why engines don't melt?
correction after comments
Apr
26
revised Why engines don't melt?
correction after comments
Apr
26
comment Why engines don't melt?
@tfb correct. melts is a wrong term I guess, though it is the effect of too much heat.
Apr
26
comment Why engines don't melt?
Micro boiling is the beginning of the steaming process next to the source of heat, the bottom of the pan in the kitchen, or the walls of the engine in the car. The water circulates fast enough so that it removes the 100C + tiny bubbles towards the refrigirator grid where air cools the water. people.smu.edu/ahumason/technotes/microboiling%20point.htm . all this is relevant to engineering designs.
Apr
26
answered Why engines don't melt?
Apr
26
revised Why do electron and hole mobilities decrease with temperature?
corrected mistake
Apr
26
answered Why do electron and hole mobilities decrease with temperature?
Apr
25
comment Gravity vs Gravitational Waves
yes to your last two sentences.
Apr
25
comment Why would a black hole evaporate?
Energy conservation. For a particle to take away energy from the vacuum at the horizon, something must provide that energy. It takes the energy from the black hole, the fields at the horizon. see a related answer here physics.stackexchange.com/q/250543
Apr
25
answered Gravitational wave contribution of the Hawking radiation from a black hole
Apr
25
comment How does universal inflation fit with the Planck length?
"Why can volumes of space keep growing without limit, when we think there is a graininess somewhere down there?" Quantization is not necessarily graininess. Photons have a continuous spectrum although bound states produce them with graininess.
Apr
25
comment Is there a simple man's perspective of Pauli’s exclusion principle
yes, no calogue because it is due to angular momentum quantization (spin) and not only. The Pauli exclusion models the data.en.wikipedia.org/wiki/Pauli_exclusion_principle#History
Apr
25
comment Can electrons within a positive ion absorb and reflect light?
the phase information of the photon and the energy must be the same for accurate reflection. a small loss of energy is not detectable in the color. In QFT all interaction happen with creation and annihilation operators, still for elastic/coherent phases are retained; so the term "destroyed" is not useful when thing quantum mechanically.
Apr
24
comment Can electrons within a positive ion absorb and reflect light?
That is why I think the solid interacts like one molecule with the photon on reflection of images . If there is excitement of electron and reemission the phases are lost. If the interaction is elastic on a "large molecule" with some collective charge which I call spill over field , then phases are kept. For the "spill over" look at "van der Waals forces"
Apr
24
awarded  Revival