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Juan José Pimentel
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Juan José Pimentel

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I'm playing Little Empire, the most stunning 3D online strategy game in all of history. My in-game Invitation Code is [ICKLA]. We can both get awesome gifts if we play together. Download it quick so we can get conquesting! Click Here: http://play.google.com/store/apps/details?id=com.camelgames.fantasyland
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Juan José Pimentel

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Juan José Pimentel

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Awesome
 
Google+ Interactive Demo

"ODEM is a fun and surprising way of engaging with a product demo through real-time interactions, using the latest browser and smartphone capabilities."

1. Watch it on YouTube
2. click "Show more" -> User Guide

Start here: http://odem.chromeexperiments.com
On Google+: +Toaster Ltd                 (h/t +Google Creative Sandbox)
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Juan José Pimentel

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This is an awesome tutorial on a fast way to calculate 1/√x, which is needed  in a variety of graphics applications (i.e. dividing a vector by its norm), written by +Christian Plesner Hansen AKA +Hummus and Magnets. Its a great exercise with great explanation and can be generalized to any power between -1 and 1. The code is simply: 

float FastInvSqrt(float x) {
  float xhalf = 0.5f * x;
  int i = * (int*)&x;         // evil floating point bit level hacking
  i = 0x5f3759df - (i >> 1);  // what the fuck?
  x = * (float*)&i;
  x = x* (1.5f-(xhalf*x * x));
  return x;
}

This incarnation and its comments come from Quake III arena back in 2005; an interesting bit of graphics programming history.
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Education for Everyone.
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Check out the Chrome Web Lab

Try out one of the 5 web experiments in the Chrome Web Lab: you can play in a virtual orchestra, make a sketch in sand using a robot, and more.  

Enter the lab now: http://goo.gl/JNoqA
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Juan José Pimentel

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Hey, I've just received a free Minecraft Giftcode!
You can get one too!

>> minecraftcodes.me <<
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Juan José Pimentel

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*Would You Stand On This Bolder??*

The Kjeragbolten boulder is a huge rock wedged between two rock faces more than 1,000 meters up between two cliff faces in Norway.  Supposedly, the rock got stuck there sometime during the last ice age. Today it's a happening spot to get your picture taken. No safety nets, no hand rails.... Would you walk out for the photo opportunity?

#travel   #dreamplaces  
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Matemático Amante de la Tecnología y Software Libre. Mathematician Lover of technology and free software
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