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location Seattle, WA
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visits member for 1 year, 6 months
seen 9 hours ago

I participate on this site because I really enjoy physics and because I would like to learn more about what makes an online community work well. Questions often interest me more than answers – although I think the best answers are grounded in observation and experiment. I’m optimistic that there are still many surprising discoveries yet to be made in the physical sciences. I believe physicists should be good citizens. I believe my children will know things about the natural world I can’t even imagine – and will learn them in ways quite different than how I was educated.


Jan
31
answered Tension in string due to surface tension
Jan
31
comment Determining a person's sight from his speech
Puzzles can be cool, but if I needed to determine if someone needed eyeglasses I'd ask the to read an eye chart. I think you have another way in mind.
Jan
31
comment Improving our homemade hot tub design?
Stirring should help, but perhaps not enough to notice :(
Jan
31
comment Determining a person's sight from his speech
If this is about physics, more explanation would be helpful. Are you asking whether its possible to evaluate vision without administering an eye test?
Jan
30
comment Could geothermal energy extraction in Yellowstone significantly diminish the threat of a supervolcano?
There are at least three questions here: 1) geothermal energy extraction, 2) volcanic hazard mitigation, and 3) super-volcanos. An answer to one of these alone would be difficult enough, and providing a sensible answer to a single case of all three may not be possible here. There is a lot of science and engineering efforts applied to each of the three individually - you might consider narrowing the scope of your questions. @mart's answer is valid, but I think one shouldn't take it to mean that the possibility of these ideas is somehow ruled out by physics.
Jan
30
revised Could geothermal energy extraction in Yellowstone significantly diminish the threat of a supervolcano?
please add geophysics tag because geothermal is in this discipline
Jan
26
answered How about retrodiction, if climate prediction is difficult?
Jan
25
revised Can a small change in the Earth temperature give rise to large-scale climate changes?
l think this should have geophysics tag
Jan
25
comment Can a small change in the Earth temperature give rise to large-scale climate changes?
Why did you choose to refer this as 'rumors'? Did you mean to express doubt about the proposition - or was that merely a choice of words?
Jan
25
comment Can a small change in the Earth temperature give rise to large-scale climate changes?
A small change in the average temperature of the Earth's entire oceans and atmosphere would be a very large change in the total heat content of the system. Or are you asking whether a small local temperature change would be likely to spread and have an effect on global climate.
Jan
25
suggested suggested edit on Can a small change in the Earth temperature give rise to large-scale climate changes?
Jan
23
revised Why are continents wider at the north and tapering towards the south?
added an additional paragraph and two links
Jan
23
answered Why are continents wider at the north and tapering towards the south?
Jan
23
comment Why are continents wider at the north and tapering towards the south?
Are looking at a map or a globe? Some map projections exaggerate the apparent area of land masses near the poles. Also does the effect you believe you see seem the same in the southern and northern hemisphere?
Jan
19
answered If a material is built to handle tension, would removing the tension damage it?
Jan
17
revised why the shape or size of Magnetosphere is different both side?
added geophysics tag
Jan
17
suggested suggested edit on why the shape or size of Magnetosphere is different both side?
Jan
12
accepted How fast does the water travel down river when the discharge gates of a large dam are opened?
Jan
7
answered Polarization in Nicol prism
Jan
6
answered How fast does the water travel down river when the discharge gates of a large dam are opened?