Extending Conditional Formatting in Google Sheets Using Dynamic Date Calls. Google Sheets, the spreadsheet tool that's part of the Google Apps productivity suite, lets users format cells based on certain conditions, including the date contained in a cell and how far away that date is from the present.
The Geiger counter, is an instrument used for measuring ionizing radiation used widely in such applications as radiation dosimetry, radiological protection, experimental physics and the nuclear industry.eiger counters are widely used to detect gamma radiation, and for this the windowless tube is used. However, efficiency is generally low due to the poor interaction of gamma rays compared with alpha and beta particles.
Gamma radiation can be used as a 'knife'. Gamma radiation can also be used to treat some kinds of cancer. This is called âexternal radiotherapyâ because the radioactive source is not injected into the patient. This machine is called a âgamma knifeâ. The gamma rays can pass through hundreds of holes in a lead ring.