darkconspiracytherpg.info

Many people have at least heard of this scientific analysis device used in both TV series of Star Trek. Well for one Canadian, having a useful science tool in the form of a tricorder was not just for the realms of TV fnatasy - he built his own for around US$500 in 2007 and has progressed to versions with more functions but his first version included "...sensors for atmospheric temperature and humidity, magnetic fields, light, temperature, pressure, distance, inertia, and linear polarization, together with a light-to-voltage converter and a GPS receiver."

Story here: -
http://www.gizmag.com/jansen-tricorder-project/22019/