Category Archives: Science

Solving criminal cases through crowd-sourcing

I started writing this post a few days ago after reading this article. It looked extremely interesting. The main idea is that in the Boston marathon there were thousands of mobile phones taking pictures and videos. The total duration and number of all videos and pictures shot could be stunning. This could be equivalent to thousands of witnesses testifying with absolute accuracy what they saw. The author was wondering whether crowd-sourcing could become a tool to crime solving. She probably meant to write modern crowd-sourcing as some forms of crowd-sourcing have been in use since long time ago as we will see further below. Continue reading Solving criminal cases through crowd-sourcing

Calculation of radiation dose to a material by using an ionization chamber

Dose deposition to a medium may only be directly measured by the method of calorimetry. However, this is not what we do in practice. What is usually done is that we use an ionization chamber of some kind to measure exposure and then apply a series of correction factors in order to derive dose values corresponding to the measured exposure. Continue reading Calculation of radiation dose to a material by using an ionization chamber