17,165 reputation
12453
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location Vancouver, Canada
age 45
visits member for 4 years, 4 months
seen 2 days ago

VP Research&Development at an image guided surgery startup.

Mostly do C++,python,image processing,machine vision - anything with lots of 3D,maths and data. Background is experimental physics and optics.


Oct
18
answered Why are nuclear reactors dome/bell shaped?
Oct
17
answered The definition of “frequency” in different contexts
Oct
17
answered Why we don't see long range airborne CO2 lasers?
Oct
17
revised Why is the sun so dense?
added 20 characters in body
Oct
16
answered Why is the sun so dense?
Oct
16
answered What is a wave?
Oct
13
comment Extra help in Optics
Hecht is a very good intro to 'modern optics' but Pedrotti is (or was?) a book on geometric optics - there isn't a lot of geometric optics in Hecht.
Oct
13
revised What are “electron holes” in semiconductors?
added 66 characters in body
Oct
12
answered What are “electron holes” in semiconductors?
Oct
9
comment How do you choose the locations of forces when calculating moments?
@mark - sorry, I meant within the accuray given - it didn't matter if you used the inner, outer or midpoint of the mounts
Oct
9
comment How do you choose the locations of forces when calculating moments?
642 and 618 are 640 and 620 to 2sf, you are only given the data to 2sf so 642 is wrong, whatever the value 'should' be
Oct
9
answered How do you choose the locations of forces when calculating moments?
Oct
8
comment Question on the stability of the solar system
@Ron well presumably it's been stable enough for 5Bn years to have the earth remain intact. And stable enough for life for 3.5Bn
Oct
7
comment domestic electric AC wiring - Live and Neutral correct or not?
@Georg in CE it's only required for non-earthed double insulated appliances. Using earthed appliances in a system with an indetermined L/N is interesting.
Oct
7
answered domestic electric AC wiring - Live and Neutral correct or not?
Oct
5
answered Effects of high frequency lighting on human vision?
Oct
5
answered What is the difference between electric potential, potential difference (PD), voltage and electromotive force (EMF)?
Oct
5
answered What was so surprising about accelerating cosmological expansion?
Oct
4
comment What's the difference between gas and plasma?
I was never happy about plasma as a separate state of matter. If ionising it makes it a new state, why doesn't having iron magnetised make it a new state, or having a liquid crystal with and without a voltage different states ?
Oct
4
answered What Is the Noise of an MRI Machine