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bio website dropletsforming.blogspot.com
location England, United Kingdom
age 31
visits member for 3 years, 4 months
seen Apr 16 at 13:43

Mar
12
awarded  Yearling
Mar
12
awarded  Citizen Patrol
Mar
12
comment What is the limit to how many satellites can orbit the earth?
The GEO satellites are running around the equator, and so are some of the other satellites. Most non-GEO satellites, however, have a different inclination, because the geostationary bit is the main reason to put a satellite above the equator. At low orbital altitudes, the satellite is visible for a smaller area of the Earth's surface, so to reach the majority of users in the northern hemisphere (North America, Europe) they have to have a higher inclination to be any use. These satellites are then less useful for much of their orbit.
Mar
12
revised What is the limit to how many satellites can orbit the earth?
added 1181 characters in body
Mar
12
answered What is the limit to how many satellites can orbit the earth?
Mar
12
comment How do we perceive colors outside our gamut?
@MSalters: Ok, I can believe that there is more to it than independent cone saturation, but regardless of why they are firing or not firing, the signals come from your existing cones, so the brain interprets them as colours just as if there was a light of that colour. My point is that after-images just produce other colours from the same gamut.
Mar
11
revised Lego Blender and gear ratios
added 178 characters in body
Mar
11
answered Lego Blender and gear ratios
Mar
11
comment Why the quantum entanglement doesn't break quantum cryptography
@PeterShor: Looks like an answer to me.
Mar
11
revised Effect of charges near a parallel plate capacitor
added 717 characters in body
Mar
11
answered Effect of charges near a parallel plate capacitor
Mar
11
comment How many quarks in a proton?
This answer seems reasonable, but perhaps clarify that the infinite quarks are merely probabilistic and temporary. The three stable quarks are the only ones with any importance outside the hadron.
Mar
11
awarded  Commentator
Mar
11
comment Differential Forms and Densities
Integrating over a volume of a charge density will give you a charge. To get mass you would need the density itself (rather than the charge density). So unless you know some relation between charge and mass, e.g. that only electrons inhabit the space and thus go charge density->electron density->mass density, you don't have the right information. Is it a different kind of density you are expecting?
Mar
11
comment How do we perceive colors outside our gamut?
I believe afterimages are simply a result of saturation of the cones, and the resulting lag in their response to intensity changes. The colours you see in an afterimage are still just some combination of red, green and blue, so although it looks strange, it is probably reproducible.
Mar
11
answered How do we perceive colors outside our gamut?
Mar
11
awarded  Organizer
Mar
11
revised Electron Relaxation/Polarization for and n-type Semiconductor
Tagged with semiconductor-physics
Mar
11
suggested suggested edit on Electron Relaxation/Polarization for and n-type Semiconductor
Mar
11
awarded  Critic