Guide
to the Cosmos
Making
the Wonders of our Universe
Accessible
to Everyone
Robert L. Piccioni, Ph.D.
Feynman Lectures Simplified
| Home |
| Feynman Simplified ebook series |
| Feynman
Simplified index |
| Feynman Simplified print book series |
 |
| Shop Now |
| About Dr. Piccioni |
| Presentations |
| Free Videos |
| Newsletters |
 Newsletter SignUp |
| Contact |
1A: Basics of Physics & Newton's LawsFeynman Simplified 1A covers about the first quarter of the freshman course of The Feynman Lectures on Physics. The topics we explore include:
Excerpt: QEDQuantum
Electrodynamics (QED) is our most advanced model of electromagnetism,
incorporating all the discoveries of special relativity and quantum
mechanics. QED says that the force between two charged particles is
caused by their exchange of photons, as sketched below:
 Figure 2-1
Electrons Exchanging a Photon
Figure
2-1 is a schematic representation of two electrons repelling one
another through the electromagnetic force. The time axis is vertical:
time increases from the bottom to the top. The horizontal axis
represents the distance between the electrons. Neither axis is intended
to be quantitative; only the sequence of events is important. As the
electrons (e–) approach one another, the left electron emits a photon
(a particle of light) that is subsequently absorbed by the right
electron. QED posits the photon transfers energy and momentum from one
particle to the other, which results, in this case, in a repulsive
force.
|
Available
for $7.99
Click on one
of the following
Feynman Lectures
Simplified 1A:
Basics of Physics...
See all the
books in the
Feynman
Simplified
ebook Series
Now available
in print format