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| bio | website | switchb.org/kpreid |
|---|---|---|
| location | United States | |
| age | ||
| visits | member for | 1 year, 10 months |
| seen | May 17 at 13:34 | |
| stats | profile views | 39 |
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Nov 12 |
comment |
Flat poster on a wall gaining curvature over time Looks like it just stretched out under its weight (or the upper mounting sagged/tore), and the curve is only because it was constrained by the lower pins. |
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Aug 18 |
revised |
How does a car turn without any skidding? more specific title |
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Aug 18 |
suggested | suggested edit on How does a car turn without any skidding? |
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Jul 10 |
awarded | Yearling |
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Jan 25 |
revised |
Why is the energy density of gasoline so high? fix 2 misspellings, other copyedits |
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Jan 25 |
suggested | suggested edit on Why is the energy density of gasoline so high? |
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Jan 21 |
comment |
Electrical flow in a simple parallel circuit @James: The error in your comment is that the voltage drop for each is 3V only if they were in a series circuit. This is a parallel circuit, which is not the case where that rule applies. Think about this: Given some reference 0V, you can assign a specific voltage to every node (i.e. wire/junction) in the circuit. Voltage drops are the differences between nodes. In your example, there are only two nodes, so the drop across all of the components must be 9V (or -9V if you take the difference in the other direction). This is equivalent to Kirchhoff's voltage law — I suggest trying that out. |
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Jan 19 |
revised |
How can I create hindrances to radio waves? grammar, capitalization of question |
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Jan 18 |
suggested | suggested edit on How can I create hindrances to radio waves? |
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Jan 15 |
comment |
How long does it take to weigh an uncooperative mass? This is definitely in the right direction; the need to choose $\bar{a}_{max}$ is the hole. There is a $d$: the height of the box — that's why the box exists. |
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Jan 15 |
revised |
How long does it take to weigh an uncooperative mass? oops, the downward mass would have to be constant accel, not constant velocity. Also expand intro. |
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Jan 15 |
comment |
How long does it take to weigh an uncooperative mass? I'm assuming an ideal scale, so the center of mass isn't a problem, and I want an upper bound on the error more specific than ‘it will improve over time’. |
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Jan 15 |
answered | Should you run when under rain? |
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Jan 14 |
revised |
How long do reflections take? use superscript instead of 'e' notation (this changes value by a factor of 10 but matches the author's comments) |
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Jan 14 |
suggested | suggested edit on How long do reflections take? |
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Jan 14 |
asked | How long does it take to weigh an uncooperative mass? |
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Jan 2 |
comment |
How to guess the content of a christmas present? (1) No, you can get information about the mass distribution from the gravitational field; consider the mapping of lunar mascons, which according to that article was done just by analyzing the trajectory of a probe. (2) MRI gets you a 3D image, i.e. size and shape of different regions, and apparently some information about composition as well. (I don't have any background in these topics so I'm not providing much detail; consider this to be existence, rather than constructive, proof, if you will.) |
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Dec 31 |
answered | How to guess the content of a christmas present? |
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Dec 19 |
revised |
Can temperature be defined as propensity to transmit thermal energy? fix one \partial without a \, touch up caps/commas too |
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Dec 19 |
suggested | suggested edit on Can temperature be defined as propensity to transmit thermal energy? |
