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| physical object > natural object > particle > boson > carrier boson > photon > radio > ELF band |
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| ELF band | ||||
| subject | fact | |||
| ELF band | has frequency 300 Hz to 3 kHz |  |
| has wavelength 100 km to 1000 km | | |
| is a kind of radio | | |
| photon | has spin 1 | |
| has synonym electromagnetic radiation | | |
| carries the force electromagnetism | | |
| massless particle | has mass 0 | |
| neutral particle | is not accelerated by electric or magnetic fields | |
| has charge 0 | | |
| wave | has propagation direction | |
| particle | obeys uncertainty principle | |
| boson | has quantum behavior Bose-Einstein statistics | |
| harmonic motion | has amplitude | |
| has period | | |
| physical process | has domain physics | |
| physical object | has location or center of gravity | |
| has angular momentum | | |
| has velocity | | |
| has momentum | | |
| has temperature | | |
| has volume | | |
| has extent | | |
| has material | |