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Eastern Japanese are starting to have bruise on their bodies
When cesium burns, the light spectrum created contains two bright blue lines. Based on these blue lines, this element was named cesium after the Latin word caesius which means sky blue.
* After the replacement of camera at 1:05pm on December 3, a horizontal line is seen in the middle of the image. This is a reflection of the connecting part of 2 transparent camera covers. We appreciate your understanding and apologize for inconvenience.