Search found 952 matches

by Radazz
Thu Sep 05, 2019 6:32 pm
Forum: Pictures and Videos
Topic: Two Favorite Amoebas from this week
Replies: 5
Views: 357

Re: Two Favorite Amoebas from this week

Really nice catch. I’ve seen this type of amoeba move pretty quickly when they don’t like the light, but I’ve never seen one pull it’s test like this.
Thanks for sharing.
Radazz
by Radazz
Tue Sep 03, 2019 5:32 pm
Forum: Beginner's corner
Topic: Can't see sperm in microscope
Replies: 5
Views: 602

Re: Can't see sperm in microscope

They don’t last very long. Plastic might have the wrong refractive index, making the sample invisible, or might have killed them. Try a regular slide and coverslip, and don’t wait to long to get the sample under the scope. 400x is best. Looks like you’re going to have to take another one for the tea...
by Radazz
Wed Aug 21, 2019 2:55 pm
Forum: Pictures and Videos
Topic: Arcella amoeba - empty housing
Replies: 6
Views: 475

Re: Arcella amoeba - empty housing

Beautiful image, MB!
by Radazz
Wed Aug 21, 2019 2:53 pm
Forum: Pictures and Videos
Topic: Testate amoeba
Replies: 0
Views: 459

Testate amoeba

Here’s a testate amoeba I found in my aquarium.
Olympus IX70 60x HMC
I’ll go out on a limb and say Euglypha?
I had to chase her around. She really didn’t like the light.

Enjoy
Radazz
by Radazz
Sat Jul 13, 2019 2:59 pm
Forum: Beginner's corner
Topic: Microscope Nikon second hand price advice
Replies: 8
Views: 3856

Re: Microscope Nikon second hand price advice

Sorry for the late post, I just ran across this thread.
I have a couple of Nikon Labophot 2 scopes and a BX40.
The Nikon is 160mm and the Olympus is infinity.
IMHO, if you can swing it, the Olympus BX40 would be the better choice.
Probably way too late, but relevant nevertheless.
Radazz
by Radazz
Sat Jul 13, 2019 2:42 pm
Forum: Pictures and Videos
Topic: Salty landscape
Replies: 6
Views: 951

Re: Salty landscape

Nice technique!
Really pretty results
by Radazz
Wed Jul 10, 2019 12:18 pm
Forum: Pictures and Videos
Topic: Ultima Thule in crystal form
Replies: 5
Views: 831

Re: Ultima Thule in crystal form

Very cool!
by Radazz
Sun Jul 07, 2019 2:59 pm
Forum: Pictures and Videos
Topic: Melosira nummuloides
Replies: 11
Views: 1011

Re: Melosira nummuloides

Thank you!
Jim
by Radazz
Fri Jun 28, 2019 2:35 pm
Forum: Important announcements
Topic: New Youtube Channel
Replies: 10
Views: 5176

Re: New Youtube Channel

Excellent videos. Thanks Oliver!
by Radazz
Fri Jun 21, 2019 2:02 am
Forum: Collecting microscopes and slides
Topic: Some Zeiss stands
Replies: 9
Views: 4826

Re: Some Zeiss stands

Hi Radazz, nice collection! Is your big stage really flat and in good condition? I have one similar to this and it is deeply washed out and in additon of concave shape. :shock: Bob I got this one from St. Louis university medical school, and aside from some scratches it is just about perfect. I als...
by Radazz
Thu Jun 20, 2019 3:34 pm
Forum: Collecting microscopes and slides
Topic: Some Zeiss stands
Replies: 9
Views: 4826

Re: Some Zeiss stands

Impressive and nice. I have seen the very wide stage on the Standard 16 (or 18?) on the left in a Zeiss Brochure from that era. Is it advantageous in use ? I’ve only seen pictures and they were of a standard 16 with the rheostat on the base. The riser may be for a larger illuminator on a 14. Just g...
by Radazz
Thu Jun 20, 2019 3:29 pm
Forum: Home-made microscope adaptations
Topic: Easy polarizor to fit over older Zeiss field lens
Replies: 2
Views: 867

Easy polarizor to fit over older Zeiss field lens

Simple polarizer mount for older Zeiss field lens. Camera polarizer mounted in lid for specimen bottle. Perhaps I’ll paint it black. Analyzer under the head. https://i.postimg.cc/j2S3Vz8H/26-E77-B7-F-4028-414-C-97-BF-A0-D61-B2-A315-C.jpg https://i.postimg.cc/nrSRnC56/2954-C644-C827-472-B-86-B2-A83-D...
by Radazz
Thu Jun 20, 2019 2:20 pm
Forum: Collecting microscopes and slides
Topic: Some Zeiss stands
Replies: 9
Views: 4826

Re: Some Zeiss stands

Thanks, MichaelG!
IMHO this style with the balls and simple curves are the most beautiful.
by Radazz
Thu Jun 20, 2019 2:14 pm
Forum: Collecting microscopes and slides
Topic: A small collection of barrel microscopes
Replies: 4
Views: 1053

Re: A small collection of barrel microscopes

apochronaut wrote:Nice little collection. These are mostly French, are they not?
I believe the second from the left stand is English, but some WAG is involved.
Radazz
by Radazz
Thu Jun 20, 2019 1:39 pm
Forum: Collecting microscopes and slides
Topic: A small collection of barrel microscopes
Replies: 4
Views: 1053

A small collection of barrel microscopes

Another side collection of barrel microscopes
19th Century, but I cannot find any definitive information for any of them.
Image
Enjoy,
Radazz
by Radazz
Thu Jun 20, 2019 1:35 pm
Forum: Collecting microscopes and slides
Topic: Some Zeiss stands
Replies: 9
Views: 4826

Some Zeiss stands

Left to right: Zeiss Standard 14 Phase Contrast Zeiss inverted Phase Contrast I’ve seen the name Opton associated with this stand, but I thought that was for the camera lenses. Zeiss Standard GBL Zeiss Standard Junior https://i.postimg.cc/HxGTsNwY/783-C2-E3-E-7-EED-4-F93-83-C9-591514-C807-CE.jpg Enj...
by Radazz
Tue Jun 18, 2019 10:46 am
Forum: Pictures and Videos
Topic: Actinosphaerium dividing
Replies: 4
Views: 763

Re: Actinosphaerium dividing

This looks like Actinosphaerium 's little cousin Actinophrys . They don't conjugate; they actually have an odd sexual process where one divides within a cyst and then fuses back together again, called autogamy, shuffling genes without the reproduction part. But they do often capture food as small g...
by Radazz
Mon Jun 17, 2019 2:30 am
Forum: Pictures and Videos
Topic: Actinosphaerium dividing
Replies: 4
Views: 763

Re: Actinosphaerium dividing

Thanks 75,
by Radazz
Sun Jun 16, 2019 2:20 pm
Forum: Pictures and Videos
Topic: Actinosphaerium dividing
Replies: 4
Views: 763

Actinosphaerium dividing

Olympus IX70 40x HMC
5x speed
I tried to stay with her all the way through, but camera battery died.

Division? Or conjugation?
Interesting, anyway
Radazz
by Radazz
Mon Jun 10, 2019 5:48 pm
Forum: Pictures and Videos
Topic: Acetaminophen
Replies: 5
Views: 844

Re: Acetaminophen

If you have access to alcohol (ethanol 96% is best but lower concentrations also work) you can mix it with the powder, stir, decant't the soluble part, filter through cotton and put in the freezer. You should see acetaminophen recrystallizing on the sides of the vessel. Scoop the crystals, wash the...
by Radazz
Mon Jun 10, 2019 2:36 pm
Forum: Pictures and Videos
Topic: Acetaminophen
Replies: 5
Views: 844

Re: Acetaminophen

I grind them up. Can’t find pure acetaminophen, and I haven’t found any way of separating the coating.
by Radazz
Sat Jun 08, 2019 3:54 pm
Forum: Pictures and Videos
Topic: Lacrymaria olor - aka Swan Neck Animal
Replies: 8
Views: 1043

Re: Lacrymaria olor - aka Swan Neck Animal

Really nice catch!
Radazz
by Radazz
Sat Jun 08, 2019 3:52 pm
Forum: Pictures and Videos
Topic: Acetaminophen
Replies: 5
Views: 844

Acetaminophen

Another crystal pic
Acetaminophen 4x POL
Olympus IX70
Image
Enjoy,
Radazz
by Radazz
Wed Jun 05, 2019 3:45 pm
Forum: Pictures and Videos
Topic: Rotifer
Replies: 5
Views: 1427

Re: Rotifer

Wow!
Very nice image, Wes.
Radazz
by Radazz
Wed Jun 05, 2019 3:42 pm
Forum: Pictures and Videos
Topic: Sodium ascorbate
Replies: 6
Views: 1677

Re: Sodium ascorbate

Beautiful
by Radazz
Tue May 28, 2019 3:41 am
Forum: Pictures and Videos
Topic: Housefly Eye
Replies: 3
Views: 1447

Re: Housefly Eye

Oooh very nice!
by Radazz
Sun May 19, 2019 6:48 pm
Forum: Pictures and Videos
Topic: Diatom with somewhere to go
Replies: 15
Views: 4552

Re: Diatom with somewhere to go

billbillt wrote:"The Day of the Triffids ..."

Read this SYFY story many, many years ago... Still remember it...

BillT
The book was much better than the movie.
by Radazz
Fri May 17, 2019 2:25 am
Forum: Collecting microscopes and slides
Topic: Zeiss serial numbers
Replies: 9
Views: 4470

Re: Zeiss serial numbers

Looks a lot like my opton inverted black beauty.
by Radazz
Thu May 16, 2019 6:59 pm
Forum: Off Topic
Topic: Windows 10
Replies: 32
Views: 14839

Re: Windows 10

I felt that way for a long time. 8 was such a disappointment. Really only added touch screen support but changed everything for the sake of change. I recently bought a new laptop with 10 on it. A little easier to find things than 8 but still took some searching. The new laptop processes video and st...
by Radazz
Thu May 16, 2019 3:26 pm
Forum: Collecting microscopes and slides
Topic: Zeiss serial numbers
Replies: 9
Views: 4470

Re: Zeiss serial numbers

Here’s the auction page. Should be here Monday. https://www.ebay.com/itm/CARL-ZEISS-Vintage-Binocular-4-Objective-Microscope/123324350955?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Thanks for all the outstanding info everyone. This forum has become invaluable to me. Wish I could read...