Date: Fri Nov 20 22:06:37 2009
Author: Dick Heckathorn
Subject: Re: Einstein's Birthday Present ?
Yes this is the one I saw.
Helping teachers who facilitate, motivating
students who learn.
Dick Heckathorn 14665 Pawnee Trail Middleburg
Hts, OH 44130 440-826-0834
Adjunct Physics Teacher - Baldwin Wallace College
Physics is learning how to communicate with ones
environment so that it will talk back.
[mailto:email@example.com] On Behalf Of
Sent: Tuesday, November 17, 2009 11:26 AM
Subject: Re: [tap-l] Einstein's Birthday Present ?
I believe it is the Equivalence principle device
that was also called
"Einstein's Favorite Toy" and was given to him by
Eric m. Rogers of
Princeton to Einstein on his 76th birthday and was
published in the July
1955 Sci Am. - jz
Behalf Of Paul Nord
Sent: Tuesday, November 17, 2009 11:04 AM
To: tap-l pira
Cc: Paul Nord
Subject: [tap-l] Einstein's Birthday Present ?
Cleaning out the supply cabinet I came across an
old AAPT demonstration
publication book behind a can of duplicator fluid.
There's a sketch of an apparatus titled,
"Einstein's Birthday Present."
Has anyone heard of this thing?