 | Matthew Fontaine Maury - 1855 - 302 sivua
...every trial was only a failure repeated. The most ingenious and beautiful contrivances for deep-sea soundings were resorted to. By exploding heavy charges...silent, and no answer was received from the bottom. 9 Ericsson and others constructed deepsea leads having a column of air in them, which, by compression,... | |
 | Matthew Fontaine Maury - 1860 - 542 sivua
...beautiful contrivances for deep-sea soundings were resorted to. By exploding petards, or ringing bells in the deep sea, when the winds were hushed and all...which sound travels through water. But, though the concussion took place many feet below the surface, echo was silent, and no answer was received from... | |
 | Matthew Fontaine Maury - 1869 - 548 sivua
...beautiful contrivances for deep-sea soundings were resorted to. By exploding petards, or ringing bells in the deep sea, when the winds were hushed, and all...from the rate at which sound travels through water. Bnt, though the concussion took place many feet below the surface, echo was silent, and no answer was... | |
 | 1894 - 900 sivua
...repeated. In 1856, Maury writes : "The most ingenious and beautiful contrivances for deep-sea sounding were resorted to. By exploding heavy charges of powder...which sound travels through water. But though the explosions took place many feet below the surface, echo was silent and the sea gave out no answer.... | |
 | U.S. Army Engineer School - 1919 - 792 sivua
...beautiful contrivances for deep-sea soundings were resorted to. By exploding petards or ringing bells in the deep sea, when the winds were hushed and all...determined from the rate at which sound travels through the water. But, though the concussion took place many feet below the surface, echo was silent, and... | |
 | 1921 - 354 sivua
...nineteenth century. In 1856, Maury writes : The most ingenious and beautiful contrivances for deep-sea soundings were resorted to. By exploding heavy charges...reverberation from the bottom might, it was held, be heard and depth determined from the rate at which sonud travels through water. But though the explosions took... | |
 | 1921 - 368 sivua
...nineteenth century. In 1856, Maury writes : The most ingenious and beautiful contrivances for deep-sea soundings were resorted to. By exploding heavy charges...in the deep sea, when the winds were hushed and all wos still, the echo or reverberation from the bottom miprht, it was held, be heard and depth determined... | |
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Attempts to fathom the ocean, both by sound and pressure, hud been made, but in " blue water" every trial was only a failure repeated. The most ingenious and beautiful contrivances for deep-sea soundings were resorted to. By exploding heavy charges of... 