Search found 960 matches

by Radazz
Sat Dec 14, 2019 2:09 pm
Forum: Specimens, samples and slides
Topic: A source for diatoms
Replies: 10
Views: 178

Re: A source for diatoms

This is what I get from diatomaceous earth.
Olympus BX40. 40x. Phase Contrast
Image
Radazz
by Radazz
Thu Dec 12, 2019 1:56 pm
Forum: Pictures and Videos
Topic: Ascorbic acid
Replies: 2
Views: 70

Ascorbic acid

Ascorbic acid
Olympus IX70
20x pol
I never know what will turn up.
Image
Enjoy,
Radazz
by Radazz
Wed Dec 11, 2019 4:50 am
Forum: Pictures and Videos
Topic: Navicula lyra
Replies: 15
Views: 445

Re: Navicula lyra

Very nice and great detail
Radazz
by Radazz
Wed Dec 11, 2019 4:48 am
Forum: Pictures and Videos
Topic: Muscles in leg of centipede
Replies: 5
Views: 114

Re: Muscles in leg of centipede

Thank you all so much.
by Radazz
Tue Dec 10, 2019 7:03 pm
Forum: Pictures and Videos
Topic: Alanine POL
Replies: 2
Views: 107

Re: Alanine POL

Thanks, my friend!
by Radazz
Tue Dec 10, 2019 7:02 pm
Forum: Pictures and Videos
Topic: Muscles in leg of centipede
Replies: 5
Views: 114

Muscles in leg of centipede

Muscles in leg of centipede
Olympus IX70
4x pol

Image
Enjoy,
Radazz
by Radazz
Mon Dec 09, 2019 5:18 pm
Forum: Pictures and Videos
Topic: Diatom from Pesacola, Florida
Replies: 6
Views: 141

Re: Diatom from Pesacola, Florida

Another nice one, Bob
Radazz
by Radazz
Mon Dec 09, 2019 5:17 pm
Forum: Pictures and Videos
Topic: Alanine POL
Replies: 2
Views: 107

Alanine POL

Alanine
Olympus IX70
4x pol

Image

Enjoy,
Radazz
by Radazz
Thu Sep 05, 2019 6:32 pm
Forum: Pictures and Videos
Topic: Two Favorite Amoebas from this week
Replies: 5
Views: 565

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: 1086

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: 633

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: 578

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: 4048

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: 1132

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: 983

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: 1235

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: 5790

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: 5300

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: 5300

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: 1209

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: 5300

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: 1443

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: 1443

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: 5300

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: 892

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: 892

Re: Actinosphaerium dividing

Thanks 75,
by Radazz
Sun Jun 16, 2019 2:20 pm
Forum: Pictures and Videos
Topic: Actinosphaerium dividing
Replies: 4
Views: 892

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: 972

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: 972

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: 1173

Re: Lacrymaria olor - aka Swan Neck Animal

Really nice catch!
Radazz