Jerry was sitting down for breakfast one morning when he was astonished to see in the paper an announcment of his own death.
He called his friend at once, "Jim, have you seen the announcement of my death in the paper?"
Jim replied, "Yes, and exactly where are you calling from?"
FathometerIn 1928, the fathometer was patented by Herbert Grove Dorsey (No. 1,667,540). His invention was an electro-mechanical sounding instrument that measured underwater depths by using a series of electrical sounds signals and their echoes. He coined the name fathometer. The same instrument could measure both very shoal water and very deep water. His fathometers not only improved hydrographic surveying but also were valuable to the maritime shipping industry by saving time over line soundings. His instruments helped delineate much of the continental shelf and slope of the United States and its territories as well as much of the deep sea, in particular the northeast Pacific Ocean, the mid-Atlantic shelf and slope, and Gulf of Mexico.«[Image: Dorsey shown with a fathometer.] |
