## Gaia Sandbox version 0.704b

Lots of new exciting stuff in Gaia Sandbox 0.704b

I have been working hard these last couple of months and today I’m proud to announce the release of the second beta version of the Gaia Sandbox, the open source, free, astronomy sandbox focused on the Gaia mission.

## Gaia Sandbox goes public

Released the first beta version of the Gaia Sandbox!

Today we have published the first public BETA version (v0.703b) of the Gaia Sandbox, a real-time, 3D, astronomy visualisation application that runs on Linux, Windows and MacOSX systems. Its main purpose is to serve as an outreach platform to ESA’s Gaia mission, and it is free (as in freedom and gratis). It is also open source under the LGPL, so go try it out!

## Review of Particle Physics Simulator

Physik in unserer Zeit reviews the Particle Physics Simulator

Turns out the German physics educational journal Physik in unserer Zeit (Physics in our time) published a thorough review of one of my Android apps, the Particle Physics Simulator back in January 2014. One of the authors of the article, Jan-Philipp Burde, contacted me a while back to let me know that he was preparing the article and to ask some information on how the code works, which I gladly provided. Then, he kindly contacted me again when the article was published in the January 2014 issue of the journal.

For what I could understand with my still basic German, the article talks about how the app can aid in the teaching of gas dynamics, providing some hints on the configuration set-up (no gravity, elastic collisions, etc.) in order to simulate a gas. For example, it teaches how to illustrate the concept of Brownian motion, removing the gravity and creating several small-sized particles along with one or two big-sized particles.

## Messing around with HTML5

HTML5 snake game

Hi there! I have been messing around with a snake game written in HTML5+js. A great deal of parameters can be modified in real time using an input form in the same page, such as the width and length of canvas, cell shape, background colour, food colour, snake colour and the speed of the game. Also, I posted the full javascript code.
Today I’d like to drop some photos of my recent holidays to Nepal here. All of these were taken using a Canon 40D with the Canon 28-105 USM II f3.5-4.5. I decided to leave my other two lenses home (the wide angle lens Sigma 10-20 1:4-5.6 EX DC HSM and the standard Canon EF 50mm f/1.8 Mk II) because of the philosophy of the travel. We were mostly a backpacker group and we’d be moving around quite a lot, trekking the Himalayas and going to the jungle, so I figured the extra weight wasn’t worth it. Looking backwards, I regret not taking the wide angle lens, for some of the landscapes we could behold were truly amazing.