Proceedings of the American Academy of Arts and Sciences, Volumen2Metcalf and Company, 1852 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 134
... barometer was falling . Before the expiration of forty - eight hours , a violent gale set in . " On the 23d of July last , I went from Copper Harbour to Eagle River , where I arrived in the evening . The day had been calm , so much so ...
... barometer was falling . Before the expiration of forty - eight hours , a violent gale set in . " On the 23d of July last , I went from Copper Harbour to Eagle River , where I arrived in the evening . The day had been calm , so much so ...
Página 135
... barometer at Copper Harbour during one of these fluctuations , remarks : — ' As a general thing , fluctuations in the barometer accompanied fluctuations in the level of the water ; but sometimes the water - level varied rapidly in the ...
... barometer at Copper Harbour during one of these fluctuations , remarks : — ' As a general thing , fluctuations in the barometer accompanied fluctuations in the level of the water ; but sometimes the water - level varied rapidly in the ...
Página 186
... barometer with which we are most familiar employs the first method : the aneroid barometer , which , as its name implies , contains no liquid , is based on the last principle , namely , that of measuring weight by elasticity . " This ...
... barometer with which we are most familiar employs the first method : the aneroid barometer , which , as its name implies , contains no liquid , is based on the last principle , namely , that of measuring weight by elasticity . " This ...
Página 187
... barometer from about twenty inches up to about thirty - one inches . From the na- ture of its construction , the index is incapable of moving beyond the point which corresponds to twenty inches of the mercurial barometer , or beyond ...
... barometer from about twenty inches up to about thirty - one inches . From the na- ture of its construction , the index is incapable of moving beyond the point which corresponds to twenty inches of the mercurial barometer , or beyond ...
Página 188
... barometer , day by day , with the common barometer , under the ordinary changes of atmospheric pressure . The mercurial ba- rometer used for this purpose was made by W. and S. Jones , of London , and is the same as that used by ...
... barometer , day by day , with the common barometer , under the ordinary changes of atmospheric pressure . The mercurial ba- rometer used for this purpose was made by W. and S. Jones , of London , and is the same as that used by ...
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Página 136 - Similar phenomena occur on several of the Swiss lakes. Professor Mather, who observed the barometer at Copper Harbour during one of these fluctuations, remarks : — " As a general thing, fluctuations in the barometer accompanied fluctuations in the level of the water ; but sometimes the water-level varied rapidly in the harbour while no such variations occurred in the barometer at the place of observation." As a general rule, these variations in the water-level indicate the approach of a storm,...