17,295 reputation
12455
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location Vancouver, Canada
age 45
visits member for 4 years, 5 months
seen 13 hours 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
25
comment Would a positron energy weapon cause the same effects as Zat Gun from SG-1 from assuming normal Physics?
The Lazy gun (Against a dark background) is the only ultimate weapon with a sense of humour
Oct
22
answered The visibility of air
Oct
22
comment Laser frequency tripling
@Georg - didn't know it was a polarization effect. The doublers are simple enough but never used triplers.
Oct
21
answered Laser frequency tripling
Oct
21
answered Orbital radius of Geo-stationary satellite
Oct
20
comment How can airplanes fly upside down?
@Javier - yes it's not perfectly level upside down. Although some aerobatic planes with almost symetrical wings can get very close.
Oct
20
comment why making a surface “super” smooth increases the coefficient of friction?
@Tom - it's also a problem with high precision optical surfaces before coating.
Oct
20
comment How does a table fan work?
If atoms don't move how does a fan distribute a smell accross the room?
Oct
19
answered How to Make RF Waves Visible
Oct
19
answered How does a table fan work?
Oct
19
answered Can an “absolute” frame of reference be determined by measuring the compression of light?
Oct
19
comment Why is the sun so dense?
@Tom - indeed if I was in charge of labeling Jeans anything with a leg length>waist diameter would be labelled "freakishly tall and skinny"!
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