Busy studying today

   I only did the first Google Code Jam problem, too. At some point I got fed up with remembering Java syntax, which in hindsight required more preparation. Next year, Python, surely.

   This weekend is dedicated to schoolwork.

   A scintillator like potassium iodide crystals will somewhat get you visible light from higher energy gamma rays, which is easier to find. My use of the term 'x-rays' might be erroneous.