Cosmic Radiation

This photo proves the theory that when we go to higher altitudes, cosmic background radiation increases. Normal¬†background radiation in my home in Chiangmai city, Thailand (320m ASL) is around 22 CPM (counts per minute) whereas the cosmic background radiation at Doi Pui Hmong Village¬†(1500m ASL) seems to be around 34 CPM (see photo above). This... Continue Reading →

Flying High

I took my Geiger counter on a recent long haul flight to measure the background cosmic radiation at an altitude of 12,000 metres and here is the result Normal background radiation on the ground is usually 15 to 20 cpm (counts per minute). Don't worry, I made the measurement in the toilet so as not... Continue Reading →

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