The New Encyclopaedia Britannica, Volume 24Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 253
... surface generated by revolving a hyperbola ( q.v. ) about either of its Hyperboloids of one sheet ( left ) and two sheets ( right ) axes . If the tranverse axis of the surface lies along the x axis and its centre lies at the origin and ...
... surface generated by revolving a hyperbola ( q.v. ) about either of its Hyperboloids of one sheet ( left ) and two sheets ( right ) axes . If the tranverse axis of the surface lies along the x axis and its centre lies at the origin and ...
Page 379
... surface irregularities , and index of refraction by dividing a beam of light waves into a number of beams that travel unequal paths and whose intensities , when reunited , add or subtract ( interfere with each other ) ac- cording to the ...
... surface irregularities , and index of refraction by dividing a beam of light waves into a number of beams that travel unequal paths and whose intensities , when reunited , add or subtract ( interfere with each other ) ac- cording to the ...
Page 540
... surface of the bell is armed with nematocysts , or stinging cells , as are tentacles hanging from the edge of the bell . Light - sen- sory organs ( eyespots ) , balance organs ( statocysts ) , and other sensory organs are at the base of ...
... surface of the bell is armed with nematocysts , or stinging cells , as are tentacles hanging from the edge of the bell . Light - sen- sory organs ( eyespots ) , balance organs ( statocysts ) , and other sensory organs are at the base of ...
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