 | Smithsonian Institution. Board of Regents - 1901 - 1060 pages
...will float off on the surface of the water along the line of the knife cut, and it should lie sk>wly lowered (one end resting on the bottom of the dish)...covering the tank and exhibiting the most beautiful interference colors. The, tank was filled with carbonic acid and placed under the origin of the sound... | |
 | Robert Williams Wood - 1905 - 596 pages
...goes well it will float off on the surface of the water along the line of the knife-cut, and the plate should be slowly lowered (one end resting on the bottom...covering the tank and exhibiting the most beautiful interference-colors. The tank was filled with carbonic acid and placed under the origin of the sound-wave.... | |
 | 1899 - 614 pages
...(one end resting on the bottom of the dish) until the rectangular piece detaches itself and flo;its freely on the surface. The edges of the tank are well...direction, when the film will be found covering the tank nnd exhibiting the most beautiful interference-colours. The tank was filled with curbonic acid and... | |
 | Smithsonian Institution. Board of Regents - 1901 - 1064 pages
...well, it will float off on the surface of the water along the. line of the knife cut, and it should lie slowly lowered (one end resting on the bottom of the...covering the tank and exhibiting the most beautiful interference colors. The tank was filled with carbonic acid and placed under the origin of the sound... | |
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... slowly lowered (one end resting on the bottom of the dish) until the rectangular piece detaches itself and floats freely on the surface. The edges of the tank are well greased, and then lowered carefully upon the film, to which they will adhere. The... 