meta user
network profile
| bio | website | |
|---|---|---|
| location | Vancouver, Canada | |
| age | 43 | |
| visits | member for | 2 years, 2 months |
| seen | 9 hours ago | |
| stats | profile views | 837 |
Mostly C++ programmer in Vancouver.
Specialising in image processing, 3d modeling, Lidar - I'm really a physicist
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22h |
comment |
The nature of resistance at copper wire terminations @007 feel free to edit answers to improve them |
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1d |
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Electric power transmission No Ohm's law refers to the voltage difference accros the resistor - in this case the transmission line |
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2d |
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Can a diver swim a short distance in great depths without being physically crushed by the pressure? Remember at pressure that lungful of air had more oxygen. One of the hard things to teach scuba diving students is that they can (and must) keep exhaling on the way up - and that essentially more air is "appearing" in their lungs as they rise. |
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May 18 |
answered | The nature of resistance at copper wire terminations |
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May 18 |
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Can a diver swim a short distance in great depths without being physically crushed by the pressure? Submariners would also need to pressurise to the external pressure, however briefly, simply to get the hatch open! I suspect that the time is short enough you don't dissolve significant nitrogen. |
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May 18 |
answered | Can a diver swim a short distance in great depths without being physically crushed by the pressure? |
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May 18 |
awarded | electromagnetic-radiation |
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May 17 |
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Why doesn't light kill me? @FrankPresenciaFandos - to a limited extent. If we had an atmosphere that allowed lots of extreme-UV or hard X-ray it's unlikely life could have evolved at all. |
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May 17 |
awarded | Good Answer |
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May 17 |
awarded | Mortarboard |
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May 17 |
revised |
Why doesn't light kill me? added 5 characters in body |
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May 17 |
awarded | Nice Answer |
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May 17 |
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Why doesn't light kill me? @MichaelBrown - yes if you are made of KDP you should be careful of sunbathing even on a cloudy day. |
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May 16 |
answered | Why doesn't light kill me? |
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May 12 |
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Computer cooling with dry ice, ideas and question; thermodynamics It's also very difficult ,mechanically, to cool something with a solid that sublimes. Firstly it's hard to get a good thermal contact between the solid cryogen and a heat exchanger and then the boiling gas creates a thermal barrier. Solid LN2 used to be used to cool instruments below 77k before mechanical coolers and it was a royal pain |
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May 2 |
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Enginering question about F1 car @user2018790 - it varies as they change the rules - but at one point F1 cars generated about 2x their weight in downforce! |
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Apr 29 |
revised |
What distinguishes between physics and chemistry? added 60 characters in body |
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Apr 28 |
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Smallest force to move a brick @chersanya - it's easy to get confused about forces, especially mixtures of static and dynamic force. But if you think in terms of energy conservation you know it must be true |
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Apr 25 |
answered | Smallest force to move a brick |
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Apr 25 |
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Wind effect on driving a ground-based vehicle @MikeDunlavey - probably a major concern to many sports car drivers ;-) |
