Thursday, January 26, 2012

snow to ice

after snow, ice is coming, made from snow.

This winter is colder......

Thursday, December 29, 2011

Thursday, July 14, 2011

Radiation in Tokyo

I bought a dosimeter RAE DoseRAE2, and measured amount of radiation in and around my office.

The measured dose equivalents  are 0.05-0.07 Sv/h in the office, and 0.07-0.09 Sv/h outside the office.

These values include natural radiation such as cosmic rays.