Re: Eratosthenes' variation

[Herbert H Gottlieb <herbgottlieb@JUNO.COM>]

Measuring the circumference of the Earth as Ken proposes
is an excellent idea. , especially if it is brought to the
attention of local and national newspapers and TV reporters.
In any case remember to send the results to be published in
The Physics Teacher magazine.

Herb

On Tue, 05 Jun 2001 15:26:05 -0700 "Murray, Ken" <KMurray@SD43.BC.CA>
writes:
> My students would like to measure the size of this planet with a
> length-of-shadow measurement (a variation on Eratosthenes's
> observations).
> We would measure the shadow angle of a vertical metre stick at a
> specific
> time (next week) and someone else a few hundred to a coupla thousand
> km away
> would do the same measurement at the same time. To keep the geometry
> simple,
> I'm looking for someone on approximately the same meridian (123
> degrees
> West). So, is there anyone out there, somewhere between Portland and
> San
> Francisco who would like to do this easy measurement (you or your
> students)
> and share the data?
> Ken Murray
> Physics Teacher
> Pinetree Secondary School
> Coquitlam, BC
> <kmurray@sd43.bc.ca>


Herb Gottlieb from New York City
(Where it's nice to live but I wouldn't
want to be a tourist here)
herbgottlieb@juno.com