How to simulate color blindness on Ubuntu or Linux Mint easily.

Simulating colour blindness is very useful for a graphics designer or web developer, this allows the designer to test if the graphics are visible properly when using various colours on buttons and hyperlinks. There is a very useful application that can help with this. This is called Color Oracle. This is a Java app and … Read more

How to use color in the ls command to brighten up your directory listings.

Below we see output of the ls command when listing a directory. The –color=auto parameter allows the use of color if your terminal supports it. And since everyone either uses Konsole or Gnome Terminal; this command will always work. I am using zsh at the moment; but this works with just about any shell. ls … Read more

Super high resolution panorama image released by NASA. Curiosity rover continues to amaze.

http://mars.jpl.nasa.gov/images/pia16051_figure_1_raw_smaller-full.jpg. This panorama image taken by the Curiosity rover is 29185 * 4144 pixels and contains a massive amount of data. The rovers cameras are 2 mega-pixels, this is less than a consumer smart-phone camera, but they have many features than lift them above any consumer level digital camera. The 34 millimetre mast-cam took this … Read more

First colour photograph sent home to Earth by the Curiosity rover.

This is the first colour photograph taken by the Curiosity rover sent by NASA. This photograph is taken with a new high-resolution camera called the Hand Lens Imager (MAHLI) at the end of the rover’s robotic arm. This imaging device can resolve super-small details when the camera is up close to an interesting object.