Science: v.1-v.219Moses King, 1960 |
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Стр. 959
... waves ( sometimes called sound waves ) through solids , liquids , or liquids , or gases is Fermat's principle . This states that the waves follow a path which makes their transmission time between two points a minimum . From this ...
... waves ( sometimes called sound waves ) through solids , liquids , or liquids , or gases is Fermat's principle . This states that the waves follow a path which makes their transmission time between two points a minimum . From this ...
Стр. 961
... waves in the upper portion of the man- tle are reproduced . They show that the low - velocity channel for transverse waves extends to a greater depth than that for longitudinal waves , and that it has a minimum at a depth of almost 100 ...
... waves in the upper portion of the man- tle are reproduced . They show that the low - velocity channel for transverse waves extends to a greater depth than that for longitudinal waves , and that it has a minimum at a depth of almost 100 ...
Стр. 1804
... waves of periods greater than about 5 seconds which have been detected at great distances from the source . Large ... waves were recorded on the west coast of North America and , after crossing the continent as Rayleigh waves , on the ...
... waves of periods greater than about 5 seconds which have been detected at great distances from the source . Large ... waves were recorded on the west coast of North America and , after crossing the continent as Rayleigh waves , on the ...
Содержание
Editorial The Florence Agreement | 957 |
Science in the News Environmental Radiation Studies Begun by Public Health Service in New Mexico | 974 |
Departments New Jersey Academy of Science Forthcoming Events New Products | 994 |
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