ANDREW PENG » video http://andrewpeng.net I live to eat Mon, 19 Jul 2010 11:14:06 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Lego Mindstorms Rubik’s cube solver http://andrewpeng.net/posts/2010/07/11819-lego-mindstorms-rubiks-cube-solver.html http://andrewpeng.net/posts/2010/07/11819-lego-mindstorms-rubiks-cube-solver.html#comments Sun, 11 Jul 2010 05:18:55 +0000 andrew http://andrewpeng.net/?p=819

www.youtube.com/watch?v=eaRcWB3jwMo

]]> http://andrewpeng.net/posts/2010/07/11819-lego-mindstorms-rubiks-cube-solver.html/feed 1 GT12 Turbocharged Lawnmower http://andrewpeng.net/posts/2010/04/16658-gt12-turbocharged-lawnmower.html http://andrewpeng.net/posts/2010/04/16658-gt12-turbocharged-lawnmower.html#comments Fri, 16 Apr 2010 22:32:28 +0000 andrew http://andrewpeng.net/?p=658

www.youtube.com/watch?v=Gkh8qigeLZk

]]> http://andrewpeng.net/posts/2010/04/16658-gt12-turbocharged-lawnmower.html/feed 2 Monocopter http://andrewpeng.net/posts/2009/11/12354-monocopter.html http://andrewpeng.net/posts/2009/11/12354-monocopter.html#comments Thu, 12 Nov 2009 10:58:00 +0000 andrew http://andrewpeng.net/?p=354 Modeled after falling maple seeds, this tiny autonomous monocopter has one asymmetric wing and rotates along it’s center of mass to produce lift. On-board camera at about 5:40 into the video, Hack A Day suggested using the microcontroller to take a snapshop at the same position of rotation to make one stable video.

]]> http://andrewpeng.net/posts/2009/11/12354-monocopter.html/feed 0 Ares I-X Launch Video http://andrewpeng.net/posts/2009/10/28341-ares-i-x-launch-video.html http://andrewpeng.net/posts/2009/10/28341-ares-i-x-launch-video.html#comments Thu, 29 Oct 2009 06:58:32 +0000 andrew http://andrewpeng.net/?p=341 NASA‘s launch of the Ares I-X, the experimental prototype of the new launch vehicle. Pay special attention to around 0:45 into the video and look at the USS (Upper Stage Simulator) – where you can see the effects of the Prandtl-Glauert Singularty, where the sudden massive drop in pressure in the cone of the sonic wave causes water to condense out of the air into a visible vapor cone! Here’s to returning to the moon!

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