Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 4776706 | Universal connector and compensating terminal apparatus for temperature responsive instruments A connector and compensating terminal apparatus for use with temperature responsive instruments is adapted to accommodate sensing devices such as thermocouples and RTDs having a wide plurality of lead connectors. The apparatus includes a temperature compe... | 10/11/1988 |
| 4707148 | Temperature sensing device A thermocouple temperature sensing device is disclosed for monitoring temperature at a plurality of selected locations along the length of an elongated conduit immersed within a heat conducting medium. The thermocouples, being progressive in length, are r... | 11/17/1987 |
