195 reputation
9
bio website stevenlu.net/tm.html
location Burlington, MA
age 26
visits member for 3 years, 10 months
seen Jul 16 at 20:49

Play a multitouch HTML5 Tetris clone -- don't worry, keyboard will also work great: http://htmltetris.com

A huge fan of tmux, and I use Sublime Text and (more often) the indomitable Vim.

I have some special experience with:

  • too much JavaScript
  • too much CSS
  • OpenGL
  • topics related to animation via simulation, primarily in 2D (rigid/soft-body physics, kinematically-enhanced shader techniques)
  • low-level application security (the stuff that nobody ever has time to dedicate to finding their app's vulns)
  • HTML5 gamedev (It's ready for tech demos, not all that ready yet for important products, but hopefully will be quite soon, and failing that, eventually)
  • C++ template metaprogramming, and clang c++ metaprogramming (hint: one of these will erode your sanity)

Dec
20
awarded  Scholar
Dec
20
comment Calculating stress without strain
Well of course you get the accept. Not gonna hold out on ya.
Dec
20
accepted Calculating stress without strain
Dec
20
comment Calculating stress without strain
Well... I think I still need a bit more direction in the way of how to get it done though.
Dec
17
comment Calculating stress without strain
I think the actual crack geometry can be faked pretty convincingly. I'll post back with results from my code when I get it finished.
Dec
17
revised Calculating stress without strain
added 1 characters in body
Dec
17
comment Calculating stress without strain
I'd also like to point out something I hadn't considered up to this point. Consider the L-shape again but this time it is spinning. Due to inertia alone, at some particular speed a real structure of that shape would break due to internal tensile forces. How to go about calculating something like that?
Dec
17
awarded  Commentator
Dec
17
comment Calculating stress without strain
Can anybody come up with a partial differential equation which may have something to do with planar stress?
Dec
16
comment Calculating stress without strain
Thanks for commenting. These links and directions will help me a lot.
Dec
16
comment Calculating stress without strain
This is great. I need to do a bit of studying up to find out what particular PDE's I want to come up with FEA solvers for, then see how far I can get. I'm going after real-time speed and you are showing me that it is definitely possible. Accuracy is not paramount either, but the more variables I can tweak for different effects, the better. Got a long road ahead of me but this will be spectacular if I can pull it off.
Dec
15
awarded  Tumbleweed
Dec
10
comment What is escape velocity? In reality, how can something no longer be under the gravitational influence of something else?
I would say the important bit is that the velocity will tend toward some constant value as t->infinity. Like an asymptote. It doesn't need to go to zero.
Dec
8
asked Calculating stress without strain
Dec
8
revised The effect of an EMP on circuits
added 3 characters in body
Dec
8
asked The effect of an EMP on circuits
Dec
6
comment What happens to a rotating rod that breaks in two?
Sorry. I think I was meaning to say Conservation of Rotational Kinetic Energy. I do understand the notion of measuring Angular Momentum from a point outside an object. Even if it travels straight while not spinning it is a nonzero value so long as it is offset from the path
Dec
6
comment What happens to a rotating rod that breaks in two?
okay. the notion of conservation of angular momentum is silly because it is the total energy which is conserved. It can change into different forms freely (as it often does in the typical roller coaster examples).
Dec
6
awarded  Editor
Dec
6
revised What happens to a rotating rod that breaks in two?
added 295 characters in body