Since most of you are interested in science, I've decided to share my newest project.
Besides radiation, my interests are in general science, electronics, and vintage devices. Around a year ago I 'v started to collect elements for a periodic table collection. A periodic table collection is basically a collection of as many as possible element samples out of the periodic table.
To make my collection a bit more interactive I've decided to make use of some LEDs, a microcontroller and some code to create an interactive periodic table. The LED's can for example display if an element was discovered or not at a given year, or which state (gas, solid, liquid) it has at a given temperature. Attached is an example showing all elements discovered before the year 1500 in green, and later discovered ones in red!
Here is an image of the project


If you like to read more: http://otaslab.com/periodictable/