Search found 200 matches

by jsfisher
Sat Dec 06, 2014 7:49 pm
Forum: holoforum administration
Topic: Absent administrator ?
Replies: 12
Views: 21278

Absent administrator ?

Your suggestion is fine with me, holoforum will be closed on Jan 31 2015 as a place to discuss holography. Please use the remaining time to organise a new meeting place. Thanks for the advance notice, and thanks for the time and effort that went into keeping this place going. As part of a transitio...
by jsfisher
Fri Nov 07, 2014 11:04 pm
Forum: DCG
Topic: Agar-agar
Replies: 17
Views: 10973

Agar-agar

I am now the proud owner of 100g of agar. Any suggestions?
by jsfisher
Fri Nov 07, 2014 7:37 pm
Forum: DCG
Topic: Agar-agar
Replies: 17
Views: 10973

Agar-agar

And then there is this. Dichromated Agar: a Promising Doped Biopolymer for Real Time Holographic Recording http://spie.org/Publications/Proceedings/Paper/10.1117/12.707774 "Throughout history into modern times, agar has been chiefly used as ... an appetite suppressant,..." There was once ...
by jsfisher
Fri Nov 07, 2014 4:05 pm
Forum: DCG
Topic: Agar-agar
Replies: 17
Views: 10973

Agar-agar

And then there is this. Dichromated Agar: a Promising Doped Biopolymer for Real Time Holographic Recording http://spie.org/Publications/Proceeding ... /12.707774
by jsfisher
Wed Oct 15, 2014 4:59 pm
Forum: holoforum administration
Topic: Let bygones be bygones....
Replies: 3
Views: 8805

Let bygones be bygones....

It has been about 5 five months since the riff developed between Phil and Ahmet. Are we to a point now that things have cooled and Phil (and Bob) can return?

No demands for apologies; no admissions of guilt. The wound has scarred over, so let's not poke at it to reopen. Can we just move on?
by jsfisher
Thu Sep 04, 2014 6:49 am
Forum: Gallery
Topic: hazy 2-color
Replies: 33
Views: 15482

hazy 2-color

Joe Farina wrote:
Steven wrote:
Steven wrote:It's been a very long night.
I know how it feels ;)
If I were to say, "I second that", how many people would get the in-context pun?
:oops:
by jsfisher
Wed Sep 03, 2014 2:12 pm
Forum: Gallery
Topic: hazy 2-color
Replies: 33
Views: 15482

hazy 2-color

Working out mJ/cm² is quite easy. You have 14mW of laser power spread out over a 5" x 5" plate. That works out at approximately 161.3 square centimetres.... Well, you should really be considering the circle needed to cover a 5" x 5" square, not just the square. The diameter of t...
by jsfisher
Fri Aug 22, 2014 9:25 am
Forum: For Sale / Want to Buy / Trade
Topic: Looking for Walter Speirings' "Microscope"
Replies: 6
Views: 4811

Looking for Walter Speirings' "Microscope"

Ed Wesly wrote:...I didn't see any microscopes for sale in his shop...
Ahem, http://www.holoprint.com/shop/images/microscope.html (I followed the link Ed posted, clicked on "Hologram Shop", then scrolled down to the "classic" section....)


;)
by jsfisher
Thu Aug 21, 2014 10:36 am
Forum: For Sale / Want to Buy / Trade
Topic: Looking for Walter Speirings' "Microscope"
Replies: 6
Views: 4811

Looking for Walter Speirings' "Microscope"

Have a look here:

http://www.islandnet.com/~royal/home6b.htm

No the exact microscope you had in mind, but it still may interest you.
by jsfisher
Tue Aug 12, 2014 5:51 pm
Forum: DCG
Topic: Slab gel dryers
Replies: 6
Views: 4084

Slab gel dryers

I never would have considered that sort of appliance. Thanks.