The researchers applied the higher resonant radio frequency ... s pure motion — a sloshing back and forth, similar to sound waves. “For the first time, we can take pictures of this substance ...

THE recent discovery of solar radio noise, in the range 30-1,000 megacycles ... will produce electromagnetic radiations the maximum wave-lengths of which are comparable to stellar dimensions.

Back to our radio signal. The electrons in our wire are moving, but not in one direction. These electrons are moving back and forth. Actually, the wave displayed in the activity is a ...

The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM ...

For water waves and sound waves the unit hertz is usually good enough but radio and TV waves have such a high frequency that the kilohertz (\(kHz\)) or even the megahertz (\(MHz\)) are better units.

sound waves cause air particles to vibrate ... Diffraction affects radio and television signals. Long wave radio signals are much less affected by buildings, hills, tunnels etc.