14,236 reputation
1642
bio website
location Vancouver, Canada
age 44
visits member for 3 years, 1 month
seen 8 hours ago

Mostly C++ programmer in Vancouver.
Specialising in image processing, 3d modeling, Lidar - I'm really a physicist


Mar
1
revised Why doesn't a nuclear fuel pool become irradiated?
added 302 characters in body
Mar
1
comment Why doesn't a nuclear fuel pool become irradiated?
@dmckee - sorry I had remembered that the neutron capture of D2O was almost zero, not that the capture to make D2O.
Mar
1
answered Why doesn't a nuclear fuel pool become irradiated?
Mar
1
answered Shock Absorber - Bus - Not Uniform
Feb
20
answered Does the frequency of a vibrating substance like a string depend on its properties or simply depend on the agent which vibrates the string?
Feb
4
awarded  Nice Answer
Jan
31
answered How can fiber optic image conduits consist of only fiber core, no cladding?
Jan
28
revised What invisible flicker do different types of light bulbs have?
added 182 characters in body
Jan
16
comment How do bicycle spokes work?
A spoke doesn't even need to be rigid, see: fiberfixspoke.com
Jan
16
comment why do we Carbonate drinks not any other gas
Not sure that fizzy ammonia soft drinks are going to catch on
Jan
14
comment What is going on with star's energy?
Space is big, really big. So most of the photons don't end up hitting anything
Jan
14
comment What needs to happen for one to ingest radioactive particles and how likely is this?
@MSalters - Yes environmental studies with such low incidents are hard to unwrap from other effects. A farming/outdoors/mountain state with lots of granite+radon might well have lower lung cancer than a rust-belt state with lots of smokers.
Jan
14
answered Physics Standard Deviation
Jan
13
comment computer vs heater coil comparison
@portforwardpodcast - that just happened. It's no longer economic to mine bitcoins with PC+GPU because the electricity costs more than the bitcoin. But if you live in a cold country in winter and are running the heating anyway then a company will pay part of your electricity bill in return for your mining work.
Jan
7
answered What happens at the exact moment an electron absorbs a photon
Dec
29
comment Is speed of sound really constant?
For an ideal gas the expansion is perfectly adiabatic - there is no energy lost to the gas so no differential energy loss depending on frequency
Dec
29
comment Is speed of sound really constant?
Only very slightly, for an ideal gas (or a real monotonic gas) it doesn't. For a real molecular gas the absorption of energy depends on frequency and so changes the thermodynamics. It doesn't depend on amplitude except in extreme cases where you are significantly heating or compressing the gas
Dec
29
answered Is speed of sound really constant?
Dec
29
comment What weathering mechanism leads to reduction of Carbon Dioxide in the atmosphere?
The reaction with the minerals probably increases with temperature. Solubility of CO2 in water decreases with temperature
Dec
29
comment Is it possible to “cook” pasta at room temperature with low enough pressure?
Does pasta actually cook? Is 5-8 minutes in boiling water enough to do anything chemical to the wheat other than hydrate it?