Antenna reception theory
Asimov wrote:
"Cecil Moore" bravely wrote to "All" (21 Dec 05 23:25:05)
--- on the heady topic of " Antenna reception theory"
CM From: Cecil Moore
CM Xref: core-easynews rec.radio.amateur.antenna:221661
CM Asimov wrote:
Voltage is kind of like having a big boulder
sitting on top of a high cliff.
CM Yep, it is. A big boulder sitting on top of a high cliff
CM contains a lot of potential energy. Voltage is literally
CM potential energy and cannot exist without energy.
If I can manage to roll the boulder up at the top or at the bottom of
the cliff, I will find it weighs about the same. The boulder only
picks up energy as it is accelerating towards the foot of the cliff.
A*s*i*m*o*v
W R O N G !!!!!!!!!!!!!!!!!!!!!
The boulder has energy simply because it is on top of the cliff.
[Potential Energy].
As it accelerates towards the bottom of the cliff the energy changes [
CHANGES ] from POTENTIAL to KINETIC.
The 11th commandment: Energy can be neither created nor destroyed: just
changed in type of energy.
A*s*i*m*o*v, you need to refresh your freshman University Physicss.
AK
|