Word: geitel
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
...best to begin at the beginning: "In order to place the results of the recent studies of cosmic rays in appropriate perspective, let us recall very briefly their early history. It is well known how at the beginning of the present century. . . ." At the beginning of the present century Geitel of Germany, experimenting with a quartz-fibre electroscope, noticed that for no apparent reason the air in his instrument gradually became more electrified or ionized. Later experimenters discovered that thick screens of lead or water shut out some of the mysterious ionizing agent, but not all. Lord Rutherford thought...
| 1 |