On 02/07/2010 11:48 AM, Frank wrote: > What is relativistic velocity of earth to micro and nanoscopic material > in space? I don’t recall the earths orbital velocity
Roughly 20 miles per second, or about 0.01% C (i.e, C/10000) Escape velocity from the Sun is something like 40 miles per second in our vicinity (don't recally the exact number) or around C/5000. Anything we meet is likely to be traveling slower than that (or it would have left the system). > but know M&M were > counting on it in their experiment and then there are also numerous > other frames of motion (the solar system through deep spac etc..) > Wouldn’t we expect most free floating gas in space to have a large > relative motion to earth on the order of micrometeorites? My point is > that shouldn’t we consider most matter that intercepts with our moving > atmosphere to be relativistic? The term "relativistic" is kind of fuzzy. However, it looks to me like most collisions with the atmosphere will be at velocities far less than 0.1% of C. At 0.1% of C (C/1000) we have gamma ~ 1.0000005 which is pretty close to 1. Contraction on that order would be difficult to measure. Consequently, most people would probably say that's not a "relativistic" velocity. So, the answer appears to be "no". > Maybe not as high as the fractions of C > of hydrogen from the corona but certainly still enough to generate > Lorentzian contraction to produce lesser fractional states. I still say > the biggest hurtle will begetting skeptics to accept relativistic > contraction inside a stationary catalyst! If they can accept > “equivalent” motion from a deep G well producing relativistic effects > then they should be able to comprehend “equivalent” time due to Casimir > force doing the same thing. In both cases it is relative motion between > space and time – only the axis has changed to protect the innocent. > > Regards > > Fran >
