Here are some videos of the various versions that have been released of the Particle Physics Simulator (formerly called N-Body Simulator) for Android.

Today I want to talk a bit about an initiative that I’ve been following for quite a long time now and I think deserves some attention. I’m talking about Astronomy Cast. Astronomy Cast, in their own words, takes a fact-based journey through the cosmos as it offers listeners weekly discussions on astronomical topics ranging from planets to cosmology. Fraser Cane and Dr. Pamela Gay elaborate a high-quality podcast each week, where they discuss several astronomy, astrophysics, cosmology and particle physics topics. The span of their talks is just astounding, and they really have a gift for explaining complicated concepts in a very straightforward manner.

The new version of the Particle Physics Simulator for Android is now out in the Market. The main new feature is the addition of background images to the simulations. Here’s how they work:

First, go to Settings and scroll down to the Background Image entry. Then, click on it and select the image you desire from your gallery/external storage. And yup, that’s all! The images are conveniently cropped and scaled so that OpenGL ES can handle them. OpenGL ES only accepts square textures whose side length is a power of two, so what the app does is basically calculate the largest square-of-two-sided area that fits in the selected image and then crops it.

I just submitted a new version (v2.5.5) of the Particle Physics Simulator to the Android Market, so you should be receiving it shortly in your devices. This is a bugfix version:

• Fixed bug that prevented simulations in merger collisions mode from working properly. Thanks to Neil for reporting.
• Some minor performance improvements have been added that should make the simulator run more smoothly.

This is the first post of my new website. I will use it to discuss my various projects current and future.

Hope you enjoy it ;)

At last the pictures of Japan are up and public. I know it took more than expected, but I’ve been kind of busy arranging some priority issues like the new job or our fancy super good-looking brand-new flat (yes, we finally got the long desired and proclaimed new flat in Barcelona!!). Well, lets not get off-topic… For those of you who may want to check the photos, just hit the link.