The Encyclopedia Americana, Volume 8Grolier Incorporated, 1998 - Encyclopedias and dictionaries |
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Page 188
... field cricket , Acheta assimilis , which is found in dwellings , particularly in rural areas , as well as in fields . The field cricket is dark brown to black . It has long slender antennae ; four wings that lie flat , one over the ...
... field cricket , Acheta assimilis , which is found in dwellings , particularly in rural areas , as well as in fields . The field cricket is dark brown to black . It has long slender antennae ; four wings that lie flat , one over the ...
Page 274
... field is applied to or re- moved from a paramagnetic material , such as one of the dilute salts of the transition or rare- earth elements . In this procedure , a magnetic field of about 15,000 oersted is applied to the salt while it and ...
... field is applied to or re- moved from a paramagnetic material , such as one of the dilute salts of the transition or rare- earth elements . In this procedure , a magnetic field of about 15,000 oersted is applied to the salt while it and ...
Page 275
... field to a value that destroys superconductivity in the gate wire ; de- creasing the current decreases the magnetic field , restoring superconductivity . The cryotron - the gate wire and control coil - must operate in a low ...
... field to a value that destroys superconductivity in the gate wire ; de- creasing the current decreases the magnetic field , restoring superconductivity . The cryotron - the gate wire and control coil - must operate in a low ...
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