meta user
network profile
| bio | website | stevenvh.net |
|---|---|---|
| location | Flanders, Belgium | |
| age | 52 | |
| visits | member for | 2 years, 1 month |
| seen | May 16 at 12:33 | |
| stats | profile views | 24 |
That's "Steven" (with the "n" at the end)
"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." — Bertrand Russell
Product designer, consumer electronics: audio (with Philips), home automation.
Done computer science in a previous life too.
Belbin team roles: Plant and Resource Investigator
Personal values: respect, honesty, pride, modesty, fairness
I yell because I care
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May 16 |
asked | What could cause a 30 k g acceleration? |
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Apr 28 |
awarded | Yearling |
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Mar 5 |
comment |
Will two trains running along the equator in opposite direction experience same wear out? I would have liked to see SI units here. Remember that there are only 3 countries which don't have adopted SI: Burma, Liberia, and the US. (Should we count the US as a developing country henceforth?) |
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Mar 5 |
awarded | Commentator |
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Mar 5 |
comment |
Radio-dating and the age of the earth I'm aware of zircon. But if it doesn't contain any lead it must have formed very recently, maximum tens of millions of years ago. And if the uranium is older there must be lead somewhere, not incorporated in the zircon. So you have an amount of uranium, of which you don't know how many percent of the original it is. And without this ratio there's no dating. |
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Mar 5 |
asked | Radio-dating and the age of the earth |
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Aug 23 |
comment |
At same level do these two pipe lines give same pressure of water? @Yrogirg - But "pressure drop" indicates a difference, dynamic pressure can be absolute, and at any point, BTW, not just at the exit. The dynamic pressure equation you quote is a function of velocity, so that's flowing, right? |
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Aug 23 |
comment |
At same level do these two pipe lines give same pressure of water? @Yrogirg - What terminology should I use then? |
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Aug 23 |
revised |
At same level do these two pipe lines give same pressure of water? added 436 characters in body |
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Aug 23 |
answered | At same level do these two pipe lines give same pressure of water? |
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Aug 23 |
awarded | Citizen Patrol |
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Aug 23 |
comment |
How does power consumption vary with the processor frequency in a typical computer? I'm not sure about the accuracy of the graph, (and the reference bottom right doesn't seem to give me much reason to :-)). The graph says dynamic power would be around 10 W at 1.6 GHz, and 100 W at 4.8 GHz? That's a factor 10, where we would expect a factor 3. Also, if it's linear below 1.6 GHz it would consume 10 mW at 1.6 MHz, which is extremely low for a processor with around a billion transistors, like the i7. |
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Aug 23 |
revised |
Friction in Physics added 85 characters in body |
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Aug 23 |
answered | Friction in Physics |
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Aug 23 |
comment |
How does power consumption vary with the processor frequency in a typical computer? No, you're quite right, but the power due to the leakage current is only a small fraction of dynamic power. Even though it rises exponentially with temperature total power at 85 °C will be a few orders of magnitude larger, so the static power will bend the curve only slightly. |
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Aug 23 |
answered | Noise is a form of dissipation? |
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Aug 23 |
revised |
How does power consumption vary with the processor frequency in a typical computer? deleted 1 characters in body |
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Aug 23 |
revised |
How does power consumption vary with the processor frequency in a typical computer? added 109 characters in body |
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Aug 23 |
comment |
How does power consumption vary with the processor frequency in a typical computer? That's why I said linear, and not proportional :-). |
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Aug 23 |
revised |
How does power consumption vary with the processor frequency in a typical computer? added 41 characters in body |
