| Home |
| Search |
| Today's Posts |
|
#27
May 10th 10, 11:27 PM
posted to rec.radio.amateur.antenna
|
|||
|
|||
What exactly is radio
On May 10, 7:41*am, "Szczepan Bialek" wrote:
*"joe" .... Szczepan Białek wrote: Do you know even one example where *Acoustic analogy do not work? S* A high school experiment using a bell jar, alarm clock and a vacuum pump. Jim wrote: " Having some similar charactristics does not mean EM and sound are the same thing." They are not the same. Sound propagate in gases, liquids and solids Electric waves in the "aether". But the source of sound is an increase of the pressure. The source of electric waves is an increase of the voltage. The voltage increases at the ends of a *dipole. The electric waves and sound propagate in metal wires, but with different speeds. Are electric waves in a wire also transversal? S* yes. |
Threaded Mode
