Hi Gordon, One other thing I forgot to mention. You make a huge point about the difference in the thermal coefficient of expansion between aluminum and zinc....
17701
Keith Mccourt
kgmnrc
Jun 2, 2004 7:27 pm
Dear Ron: and Ian I thank you for your comments. I feel the best of the microscopes that I know of have been the major brands that does not mean others are not...
17702
Kevin Sunley
kswpg
Jun 2, 2004 8:10 pm
Hi everyone, Before the conversation gets too polarized I just wanted to give my quick opinion. I don't think it's necessarily the age of the microscope, or...
17703
Bob Mertes
bobmer
Jun 2, 2004 8:43 pm
Yes...FRAGILE, DO NOT DROP Bob ... From: John Fichtl To: Microscope@yahoogroups.com Sent: Wednesday, June 02, 2004 12:21 AM Subject: [Microscope] Diatom...
17704
Gordon Couger
gordoncouger
Jun 2, 2004 9:28 pm
Mike, I agree with you on most zinc based alloys but there are a small group of high alluminum alloy that would make good structural parts. My expericae with...
17705
Gordon Couger
gordoncouger
Jun 2, 2004 9:32 pm
Agin I was pointing out one zinc alloy that I though could be used for some things. I do not beleive that any zinc alloys are being used. It appears that they...
17706
Gordon Couger
gordoncouger
Jun 2, 2004 9:48 pm
Kevin, I am aligning that same stand made by the aus Jenna shortly after they started back up after WWII. It is still brass. The chrome is back and it was made...
17707
keith
kgmnrc
Jun 3, 2004 12:48 am
Well folks we have a debate but I think if any one looks at what is holding an objective together one finds brass and quite often chromed. This is ultra ...
17708
Wayne Duesterbeck
duester45
Jun 3, 2004 1:49 am
Hello! I need someone to point me toward a reliable supplier of cover slips. They need not be of the utmost optical purity, but they must be clean and ready...
17709
EntoPrep
vanguard282
Jun 3, 2004 2:09 am
Hi Wayne, I know what you mean about claims of coverslips and slides being 'pre-cleaned' and supposedly ready for use. I'm with you , I also hate to have to...
17710
John Fichtl
johnfichtl
Jun 3, 2004 2:13 am
Hi I have not got the amount of scopes some of you have but can only talk about 3. One a Dynazoom, one 50 year old Reichert and 1 new chinese one. The...
17711
Wayne Duesterbeck
duester45
Jun 3, 2004 2:16 am
Egads! So what we have now is pre-cleaned dirty cover slips? I remember High School and University Biology classes where we took the slips right from the box...
17712
Bob S.
v45bob
Jun 3, 2004 2:23 am
Depending on where you live, look in your local yellow pages for a lab supply house. or Google will find you dozens of online suppliers. the ones you got off...
17713
John Fichtl
johnfichtl
Jun 3, 2004 2:25 am
Hi Bob I don't think I have any problems with any of my covers. The streaks are only on my socalled "cleane" slidea. I do use a nailpolish remover for cleaning...
17714
Don H
morningstar@...
Jun 3, 2004 2:35 am
Hi Group, My primary advisor suggested I acquire a Dialux in addition to my Ortholux (I think he just wants me to be poor). I have seen some Dialuxes for...
17715
Frez
frfez
Jun 3, 2004 2:39 am
These great posts have well covered the mechanics and construction of our beloved instruments, but let's not forget to mention the phycical beauty these...
17716
James Solliday
oldscope
Jun 3, 2004 3:00 am
Dear Charlie: Outstanding images!!! your flash technique is very helpful and the compositions are quite informative. Good work indeed. You seem to do well...
17717
James Solliday
oldscope
Jun 3, 2004 3:03 am
Graham: You are correct, "Coscinodiscus" indeed. Jim :-) ********* Graham Matthews <micro1@...> wrote: Somewhere from the depths of my...
17718
EntoPrep
vanguard282
Jun 3, 2004 3:10 am
Frez, I know that you love your A0 Series 2, 'sitting on a matching Ortho Illuminator...', but I have to tell you, I'm starting to be a little concerned with...
17719
J. Forster
j_forster911
Jun 3, 2004 3:12 am
Speaking of strobes for microscopes, I have a Zeiss lamp house for my UEM with a Xenon strobe bulb in it (made by Strobex). There is no other lamp, so does ...
17720
Frez
frfez
Jun 3, 2004 3:26 am
... stand; Shiney ... knowbs...glossy gray ... to get ... like the ... stuff, and ... Honest ... Great Googily Moogily! 49 years of bachelorhood has taken its...
17721
Bob S.
v45bob
Jun 3, 2004 3:29 am
More than likely that Zeiss made an adapter to attach more than one lamp house to each light port on that frame or another that used the same lamp houses. Bob ...
17722
Frez
frfez
Jun 3, 2004 3:29 am
... my UEM with a ... so does ... would be pretty ... frame ... Hi John You should be able to use one lamp source for focusing and then switch over to the...
17723
EntoPrep
vanguard282
Jun 3, 2004 3:34 am
Frez, I think it's probably next to my California Red Merlot! Bob ... From: "Frez" <dtetreault61@...> To: <Microscope@yahoogroups.com> Sent: Wednesday,...
17724
Robert Brewer
canyonbrew
Jun 3, 2004 4:01 am
There was the original black Dialux which was a beautiful piece of German artisanship just like the Ortholux. Then in the early 70's Leitz came out with the...
17725
Gregg Kleinberg
microscopeman1
Jun 3, 2004 4:46 am
Ahhh, yes, Keith my friend, I learned about that transfer of dissimilar metals to be called "bi-metallic corrosion". Collegiate physics, keeps coming back...
17726
Wayne Duesterbeck
duester45
Jun 3, 2004 5:14 am
Thanks muchly to all of you for your responses. ... at ... of ... slips ... to ... dishes...
17727
stevenhorii
Jun 3, 2004 5:17 am
... parts. ... Gordon, I have had problems with steel (both high-strength and stainless) screws in aluminum alloy parts when the screw in the threaded hole was...
17728
G4ynd@...
divadsnave2003
Jun 3, 2004 7:26 am
Good Morning All. If members could clip some of their replies more often it would make it easier for those of us who read the daily digest. Many thanks David ...
17729
John Fichtl
johnfichtl
Jun 3, 2004 7:38 am
G'day David You are absolutely right. But, if one really clips the very first answer, any subsequent one could lose its readability. I mean the person answered...
