16,128 reputation
12251
bio website
location Vancouver, Canada
age 44
visits member for 3 years, 9 months
seen 2 days ago

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


Nov
26
revised Maneuvering a space shuttle using propulsion systems?
typo
Nov
22
comment Time should run slower near massive body
re downvote. It isn't a bad question, just slightly awkwardly phrased by somebody whose 1st language isn't English.
Nov
12
comment Maneuvering a space shuttle using propulsion systems?
@DavidHammen - it's a wrong assumption but not a bad one.
Nov
12
answered Maneuvering a space shuttle using propulsion systems?
Nov
11
comment What can be seen with a 114mm Aperture 675x Zoom Telescope?
You can buy decent 8x42 or 10x50 binoculars for \$50 from most of the made-in-china sites that will do better than a \$200 telescope - especially if you add a tripod. And you will also have a pair of binoculars.
Nov
4
answered 2.4Ghz microwaves have a 12cm wavelength. How do microwave ovens leak radiation, since any gap in the shielding is much smaller than that wavelength?
Nov
3
comment Should chemists at different altitudes factor in the specific gravity value when measuring mass via spring scale?
@Floris - I even wrote an answer on where would you weigh least but I can't find it
Nov
3
revised Should chemists at different altitudes factor in the specific gravity value when measuring mass via spring scale?
added 93 characters in body
Nov
3
answered Should chemists at different altitudes factor in the specific gravity value when measuring mass via spring scale?
Nov
1
comment Does electricity flow on the surface of a wire or in the interior?
Stranded cable is used for speakers because it is more flexible. Solid cable is used for permenent installs because it isn't flexible so won't move and potentially fray. Solid cable is used even for low current data cables in buildings. Capacitive coupling isn't an issue in the power cables in the link because the sep strands are on the same phase and at the same potential. Finally the hollow conductors at the hoover dam are probably to allow cooling rather than to provide a 2nd surface to reduce skin losses.
Oct
26
comment Is a suit that hides a soldier's heat signature fundamentally possible?
If they can maintain the 4degC dT then they are wasted doing camouflage. They could make $Bn by making engines and power plants more efficient
Oct
25
answered Does gravity change the pressure of a column of water when the column is tilted from horizontal to vertical?
Oct
6
awarded  Enlightened
Oct
6
awarded  Nice Answer
Sep
30
awarded  Explainer
Sep
24
awarded  Autobiographer
Sep
22
revised What defines camera's size?
added 1 character in body
Sep
18
revised Why is the Earth's moon so big?
added 13 characters in body
Sep
18
answered Why is the Earth's moon so big?
Sep
18
answered What defines camera's size?