Anti-intellectualism in American LifeKnopf, 1970 - 434 pages |
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Page 172
... close as possible . But just at this point the commutator changes the polarity of the armature , and now like poles are close together . Repelled by the field pole , the armature pole swings on by and around to the other side where ...
... close as possible . But just at this point the commutator changes the polarity of the armature , and now like poles are close together . Repelled by the field pole , the armature pole swings on by and around to the other side where ...
Page 279
... close to the eye the print can be read as close as an inch or so from the eye . The pinhole limits the effective lens diameter and insures the use of rays close to the axis ( paraxial rays ) . The depth of focus of such a bundle of rays ...
... close to the eye the print can be read as close as an inch or so from the eye . The pinhole limits the effective lens diameter and insures the use of rays close to the axis ( paraxial rays ) . The depth of focus of such a bundle of rays ...
Page
... Close both eyes and have a partner move around in front of you with a sound source such as clapped hands until you judge he is directly in front of you . Open your eyes and check . Close your eyes again and try to determine whether or ...
... Close both eyes and have a partner move around in front of you with a sound source such as clapped hands until you judge he is directly in front of you . Open your eyes and check . Close your eyes again and try to determine whether or ...
Table des matières
Conception of the Universe | 2 |
Systems of Measuring Units and Some Basic Physical | 11 |
Energy and Related Concepts | 20 |
Droits d'auteur | |
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Expressions et termes fréquents
acceleration alpha particle altitude amount angle applied atmosphere atomic number axis beam beta particle body called charged particles chemical circuit coil color container cosmic rays curve direct current direction discussed distance Doppler effect earth effect electrical electromagnetic radiation electron volts electrons electrostatic emitted equator example fluorescent force frequency glass gravity greater heat hertz Huygen's principle hydrogen incandescent increase infrared intensity ionization joules kinetic energy lamp length lens light lines liquid magnetic field mass material measured mechanical meter miles mirror molecules motion move muscle neutrons normal nuclear nucleus object observe optical orbit path phenomena physical polarized poles positive pressure waves protons radio radioactive reflection result rotation shown in Fig signal sound space spectrum speed stars surface temperature thermal tube ultraviolet unit vapor velocity vibrating visible voltage volts wavelengths weight wire X-rays