 What is the Geiger counter and how exactly is it used in the present chapters?
“You may use the Geiger counter any time you want, Eddie,” Mr. Taylor said, “as long as you take good care of it. Suddenly the Geiger counter began clicking like everything.” Still, one clue is as good as another when it comes to hunting uranium ore, I guess. When carefully controlled, the radiation stored up in such isotopes was used in many beneficial ways. One reason for asking that particular question was to keep from prying deeper into the subject of the radioisotope. At the speed atomic science is moving today, we simply can’t afford to waste time. “Anything else, Mom?” he asked, returning to the house and getting the Geiger counter out of the closet.
 A Geiger counter is used to measure radioactivity. Eddie uses it to prospect the hills behind the college.
 A Geiger counter is used to measure radioactivity. Mr. Taylor uses it at Cedar Point.  A Geiger counter is used to measure radioactivity. Mr. Taylor uses it to measure the radiation present in the hills behind his college.  A Geiger counter is used to measure radioactivity. Eddie uses it to prospect the hills behind the college.  A Geiger counter is used to measure radioactivity. Eddie uses it to prospect Cedar Point.