[time-nuts] historical photos and info about Hafele-Keating
Noneayour Bsnes
pacificsymphony5 at yahoo.com
Tue Jan 24 04:46:42 UTC 2012
I teach physics, and I love the Hafele-Keating experiment as a way
to introduce relativity. Because the experiment has a lot of charisma,
it's cool to be able to show students photos of the men and the
clocks aboard the plane. The general relativity text by Hartle had
a photo that he claimed was of Hafele and Keating boarding a plane,
but it turns out that that was a mistake. Some actual photos from
the experiment have been available online for a while, but they were
low resolution. I've obtained and scanned copies of these at higher
resolution and posted them here:
http://www.lightandmatter.com/article/hafele_keating.html
The copyright status of these photos varies, and in some cases is
difficult to determine. I've given what information I had on the
web page. I'm in the U.S., where we have a pretty good fair use
exception to copyright, and for the photos that are copyrighted,
I think I have an excellent fair-use claim.
I would be grateful to anyone who could e-mail me with any of the
following:
-any biographical information about Hafele or Keating, and contact
information if they are still living
-related historical photos that are in the public domain and of high
educational or historical interest
-information about the copyright of the photo that appeared in
Popular Mechanics
Is anyone on this list old enough to have been involved in
relativistic atomic clock experiments from that era?
Regards,
Ben Crowell
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