Asimov's science non-fiction

I've heard that Asimov's popular science work, "Understanding Physics"
is a really great introduction to physics. But in searching for it on
Amazon, I find there are numerous volumes with diverse chapter
headings. Can anyone tell me how many books there in this series, and
if there is a collected edition that includes all of them? Were
additional volumes written much later than the first ones?

Thanks for any response,
- Tue Sorensen

In article <c50450f6.0312262155.6c4d8ea4.DeleteThis@posting.google.com>,
twocrafts.DeleteThis@hotmail.com (Tue Sorensen) wrote:

 > I've heard that Asimov's popular science work, "Understanding Physics"
 > is a really great introduction to physics. But in searching for it on
 > Amazon, I find there are numerous volumes with diverse chapter
 > headings. Can anyone tell me how many books there in this series, and
 > if there is a collected edition that includes all of them? Were
 > additional volumes written much later than the first ones?
 >
 > Thanks for any response,
 > - Tue Sorensen

There were 3 volumes in the original edition published in 1966:
Volume 1: Motion, Sound, and Heat
Volume 2: Light, Magnetism, and Electricitry
Volume 3: The Electron, Proton, and Neutron

Over the years, there were numerous paperback editions, as well as
omnibus editions titled _Understanding Physics_ and _The History of
Physics_. The entire work was written from 1963 to 1964.

--
Ed Seiler<!-- ~MESSAGE_AFTER~ -->