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| bio | website | |
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| location | ||
| age | ||
| visits | member for | 5 months |
| seen | Jun 16 at 14:19 | |
| stats | profile views | 93 |
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Jun 11 |
comment |
How does irradiance behave over time? @user61001 Yes, assuming clear sky, the irradiance on a horizontal surface will change very predictably based on the solar angle. This is the green curve in your plot. Clouds will generally cause the irradiance to be lower than this, but cloud cover alone is not enough to say how much lower it should be. |
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Jun 10 |
answered | How does irradiance behave over time? |
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Jun 10 |
comment |
Expected behavior of the gravity under some experiment The mass of Earth, $M$, is missing in the last two formulas, right? |
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Jun 9 |
comment |
How fast would body temperature go down in space? Nice work! Yes, I should probably have made a reality check on the mass before choosing the radius (or better yet, chosen another geometry). |
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Jun 9 |
revised |
How fast would body temperature go down in space? spelling |
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Jun 9 |
answered | How fast would body temperature go down in space? |
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Jun 8 |
comment |
force applied not on the center of mass @user25368 There is no such thing as an instant force. A force needs to be applied over some time period, however small, to make an impact. If it is examples like the one in your link that you're thinking of, it is important to understand that depending on how the mechanism striking the body works, it might not produce the same force over the same period of time for the different cases and hence the linear velocity might be different. |
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Jun 5 |
comment |
force applied not on the center of mass @user25368 What do you mean by instant force? |
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Jun 3 |
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Finite velocity at infinite distance @joshphysics Point taken. I shouldn't have overreached. |
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Jun 3 |
comment |
Finite velocity at infinite distance Infinity is not an actual point. Something cannot "reach inifinity". |
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Jun 3 |
answered | Measurements and simultaneity |
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Jun 3 |
comment |
force applied not on the center of mass @user25368 With displacement I just mean the distance that the point that you apply the force to moves during the time that you apply the force. |
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Jun 3 |
comment |
force applied not on the center of mass @user25368 Added elaboration. |
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Jun 3 |
revised |
force applied not on the center of mass further explanation |
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Jun 3 |
answered | force applied not on the center of mass |
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May 23 |
comment |
Is there any place you can safely skydive without a parachute? This What if?-article explores the possibilities of airplane flight on different solar system bodies. The same parameters (strength of gravity and thickness of atmosphere) are of importance for this as for the terminal velocity. It seems like Titan is your best bet. The atmosphere is four times thicker than on Earth. |
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May 23 |
answered | What about negative Pressure? |
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Apr 22 |
comment |
Production vs. Collection, and Contaminants vs. Depositions, what might be missing in cold fusion research Are you referring to this answer by Ron Maimon? |
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Apr 18 |
comment |
Ljapunov exponent of driven damped pendulum @sebastian I just realised I had made a small error in the last equation and corrected it. |
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Apr 18 |
revised |
Ljapunov exponent of driven damped pendulum correction of formula |
