Subject: | |
From: | |
Reply To: | |
Date: | Thu, 25 Jun 2009 17:26:02 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
*****************************************************************************
Marc - I would start with http://www.surplusshed.com....I've used
them in the past and they have been very helpful
On Jun 25, 2009, at 4:41 PM, Marc Taylor wrote:
> *This message was transferred with a trial version of CommuniGate
> (tm) Pro*
> ISEN-ASTC-L is a service of the Association of Science-Technology
> Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> **********************************************************************
> *******
>
> I'd like to make a big version of a Galilean telescope for the
> exhibit hall behind the planetarium. I have plano-convex and plano-
> concave lenses from a optical bench kit, 50mm diameter, focal
> length 50cm, but it's been suggested that a larger lens by used,
> say 10cm, with a similar half-meter focal length.
>
> Most of the kits I've seen come with 50mm lenses. Anyone have
> suggested sources for larger, optical-quality glass lenses?
>
> Marc Taylor
> Coordinator, Andrus Planetarium
> Hudson River Museum
> 511 Warburton Avenue
> Yonkers, NY 10701
> 914 963 4550 x223
> Fax 963 8558
> [log in to unmask]
>
> **********************************************************************
> *
> For information about the Association of Science-Technology Centers
> and the Informal Science Education Network please visit www.astc.org.
>
> Check out the latest case studies and reviews on ExhibitFiles at
> www.exhibitfiles.org.
>
> The ISEN-ASTC-L email list is powered by LISTSERVR software from L-
> Soft. To learn more, visit
> http://www.lsoft.com/LISTSERV-powered.html.
>
> To remove your e-mail address from the ISEN-ASTC-L list, send the
> message SIGNOFF ISEN-ASTC-L in the BODY of a message to
> [log in to unmask]
***********************************************************************
For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.
Check out the latest case studies and reviews on ExhibitFiles at www.exhibitfiles.org.
The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft. To learn more, visit
http://www.lsoft.com/LISTSERV-powered.html.
To remove your e-mail address from the ISEN-ASTC-L list, send the
message SIGNOFF ISEN-ASTC-L in the BODY of a message to
[log in to unmask]
|
|
|