network profile
| bio | website | statigrafix |
|---|---|---|
| location | san diego | |
| age | 44 | |
| visits | member for | 4 months |
| seen | Feb 25 at 1:11 | |
| stats | profile views | 3 |
- va san diego hsr&d
- head of research > statigrafix <
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Feb 24 |
answered | What is the meaning of phase difference? |
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Feb 20 |
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What happens if object is thrown in empty space? You write "in empty space" but is there a gravitational potential? |
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Feb 19 |
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Could a universe with purely Newtonian mechanics exist? @JoeZeng, how do you plan on deciding one way or the other without access to such a universe? |
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Feb 19 |
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Could a universe with purely Newtonian mechanics exist? @MichaelBrown sure, in fantasyland |
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Feb 18 |
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Could a universe with purely Newtonian mechanics exist? Then the answer is no, because some things move fast, and some things are massive, and Newtonian mechanics could not account for observations like precession of Mercury, gravitational lensing, the accuracy of GPS and many others. |
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Feb 18 |
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What's the basic difference between heat and temperature? For one thing, heat and temperature have distinct units of measurement, the former being expressed in SI units of Joules, resp. Kelvin. Think of heat as an extensive quantity and temperature as intensive quantity. |
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Feb 18 |
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In mechanics, is shock really better expressed as jerk instead of acceleration? @Sankaran, re: "or a very sharp gaussian" - why Gaussian? how do you know that it's exponential for example? |
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Feb 18 |
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In mechanics, is shock really better expressed as jerk instead of acceleration? why jerk, why not snap, crackle or pop? |
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Feb 18 |
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Could a universe with purely Newtonian mechanics exist? Newtonian mechanics works in scenarios with not too much mass and where things move slowly compared to the speed of light. See Galilean invariance vs Lorentz invariance, which replaces it. |
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Feb 18 |
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acceleration of the universe Didn't Einstein show nothing moves faster than light? |
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Dec 29 |
awarded | Supporter |
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Dec 29 |
awarded | Autobiographer |
