2,915 reputation
519
bio website numericalrecipes.wordpress.co…
location San Diego, CA
age 42
visits member for 3 years, 9 months
seen Aug 15 at 1:04

A mechanical engineer by education, I'm currently working for HP's Large Format Printing Specialty Printing Systems Advanced Platforms Group in Barcelona, Spain, San Diego, CA, dealing mostly with printing algorithms computer vision firmware.


Aug
7
awarded  Nice Answer
Dec
27
awarded  Yearling
Sep
3
awarded  Nice Answer
Feb
3
comment Falling through the rotating Earth
@PeterShor Thanks! I did get to the Wikipedia page on Bertrand's theorem (en.wikipedia.org/wiki/Bertrand's_theorem) about half an hour after finishing my fight above with polar coordinates...
Feb
3
answered Falling through the rotating Earth
Jan
30
revised Where can I check a solution to 3D Navier Stokes?
added 242 characters in body
Jan
30
answered Where can I check a solution to 3D Navier Stokes?
Jan
29
comment Which is the axis of rotation?
Of course in three dimensions things don't rotate around a point, but around an axis. Still there always is a well defined, instantaneously stationary line, around which the object is rotating at any given moment.
Jan
29
comment Which is the axis of rotation?
While your anlysys is correct, the canonical answer to "which point the body is rotating about" would be that it is rotating around the instant centre of rotation: en.wikipedia.org/wiki/Instant_centre_of_rotation
Jan
27
comment Finding optimal angle for projectile, taking into account linear (Stokes) drag
@m0nhawk Not really. I just chose the obvious units for velocity and time, and then $\lambda$ forms on its own. But you could get it that way too.
Jan
27
revised Finding optimal angle for projectile, taking into account linear (Stokes) drag
added 330 characters in body
Jan
26
answered Finding optimal angle for projectile, taking into account linear (Stokes) drag
Jan
25
reviewed Looks OK How feasible is Laser Plasma Acceleration for the post-LHC world?
Jan
25
reviewed Looks OK Spectral luminous efficiency as a function of wavelength
Jan
20
comment Lagrangian of pendulum with pivot point rotating about a circle
Looks good to me so far.
Jan
19
comment Calculating projectile range from known maximum height and time traveled
Nope, if the vertical velocity stays the same, horizontal velocity is irrelevant to time in the air and maximum height reached. If you keep the total velocity constant and change the angle from the vertical, you will increase range, at least until you reach 45°, but will reduce height and time in the air.
Jan
19
awarded  Custodian
Jan
19
reviewed Approve suggested edit on Writing equation for amplitude of driven harmonic oscillator in Lorentzian form
Jan
19
awarded  Custodian
Jan
19
reviewed Reviewed Spinning spheres colliding