ANDREW PENG » video http://andrewpeng.net Now with 100% more IPv6! http://ipv6.andrewpeng.net Thu, 02 Feb 2012 22:01:43 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Nice view up there http://andrewpeng.net/posts/2011/11/151378-nice-view-up-there.html http://andrewpeng.net/posts/2011/11/151378-nice-view-up-there.html#comments Tue, 15 Nov 2011 13:37:23 +0000 andrew http://andrewpeng.net/?p=1378 Update: Edited the embed because the original video was removed.

http://www.youtube.com/watch?v=Ip2ZGND1I9Q

 

When commercial space tourism becomes attainable (but not necessarily affordable), I’m going to have to see this for myself.

]]> http://andrewpeng.net/posts/2011/11/151378-nice-view-up-there.html/feed 0 Imperial March http://andrewpeng.net/posts/2011/09/291367-imperial-march.html http://andrewpeng.net/posts/2011/09/291367-imperial-march.html#comments Thu, 29 Sep 2011 15:49:10 +0000 andrew http://andrewpeng.net/?p=1367

http://www.youtube.com/watch?v=yHJOz_y9rZE

 

I thought it was appropriate.

]]> http://andrewpeng.net/posts/2011/09/291367-imperial-march.html/feed 0 Be nice to your servers http://andrewpeng.net/posts/2011/07/011294-be-nice-to-your-servers.html http://andrewpeng.net/posts/2011/07/011294-be-nice-to-your-servers.html#comments Fri, 01 Jul 2011 14:00:16 +0000 andrew http://andrewpeng.net/?p=1294 http://www.youtube.com/watch?v=tDacjrSCeq4

Yelling at your servers can measurably negatively affect their performance. No joke. Make sure to treat your servers with respect, and keep it quiet in the datacenter!

Perhaps there is a “brown note” for disks (“rust note”?) – some harmonic that destroys their performance; although based on what we think is happening (disk heads being thrown off track), we think this has more to do with shock force than resonance. I’m sure there are disk vendor engineers out there who know all about this (Bryan links to a good reference in his blog entry).

[Source: Sun Microsystems Blog (now Oracle)]

]]> http://andrewpeng.net/posts/2011/07/011294-be-nice-to-your-servers.html/feed 0 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 http://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 http://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!

]]> http://andrewpeng.net/posts/2009/10/28341-ares-i-x-launch-video.html/feed 0