Search found 161 matches

by tgss
Mon Jan 18, 2021 6:36 pm
Forum: Miscellaneous
Topic: Mental struggles and microscopy
Replies: 16
Views: 348

Re: Mental struggles and microscopy

apochronaut wrote Interesting to read several of the well intentioned but glib comments. I can assure you that you have no idea how out of touch with reality they are. I cannot imagine the heartaches that apochronaut and his daughter have had to face, and I have great sympathy for them and the rest ...
by tgss
Sun Jan 17, 2021 11:33 pm
Forum: Miscellaneous
Topic: Mental struggles and microscopy
Replies: 16
Views: 348

Re: Mental struggles and microscopy

For quite a number of years now in my country, and I think in many, if not most western countries, mental health issues have been increasingly identified as a relatively common and serious area of concern, not just for the individuals affected but for society as a whole. There is growing concern abo...
by tgss
Sun Jan 10, 2021 4:47 pm
Forum: Pictures and Videos
Topic: Testudinella Patina
Replies: 5
Views: 271

Re: Testudinella Patina

Beautiful! (The rotifer, the video and the wetland)
Tom W.
by tgss
Wed Dec 30, 2020 6:09 pm
Forum: Specimens, samples and slides
Topic: Botanic combination stain experiment
Replies: 4
Views: 273

Re: Botanic combination stain experiment

HI Bob
I agree. Nice differentiation and I do like the colours.
Tom W.
by tgss
Wed Dec 30, 2020 3:43 pm
Forum: Specimens, samples and slides
Topic: Staining techniques
Replies: 6
Views: 313

Re: Staining techniques

Hi Antoni Glad to hear you are thinking of ordering the book; I think you'll find it very helpful. I should mention that the author, Eric Marson, operated a business called Northern Biological Supply (NBS) which sold slides and slide making equipment and supplies. So many of the reagents mentioned i...
by tgss
Mon Dec 28, 2020 11:55 pm
Forum: Specimens, samples and slides
Topic: Staining techniques
Replies: 6
Views: 313

Re: Staining techniques

Hi AntoniScott There are a great many references that could be given in answer to your question, but two that I would recommend are: Practical Microscopy by J. Eric Marson. Available from Brunel Microscopes in the UK for 12 GBP. This is general in its coverage (including botanical stains), but geare...
by tgss
Mon Dec 21, 2020 2:16 am
Forum: Pictures and Videos
Topic: Algal blooms and their guards
Replies: 6
Views: 336

Re: Algal blooms and their guards

Outstanding!
Tom W.
by tgss
Sun Dec 06, 2020 12:50 pm
Forum: Pictures and Videos
Topic: Ilex leaf stem hand sections stained with Etzold FCA and Wacker W3ASim
Replies: 4
Views: 332

Re: Ilex leaf stem hand sections stained with Etzold FCA and Wacker W3ASim

Ah, Bob. I'm afraid it will need more than a little polish! But I suspect the video will be very informative no matter what the language.
Tom W.
by tgss
Sat Dec 05, 2020 9:15 pm
Forum: Pictures and Videos
Topic: Ilex leaf stem hand sections stained with Etzold FCA and Wacker W3ASim
Replies: 4
Views: 332

Re: Ilex leaf stem hand sections stained with Etzold FCA and Wacker W3ASim

I agree with deBult on the apparent differentiation, but I like them both very much. Very attractive images for such thick sections. I too would like a link to the video.
Cheers
Tom W.
by tgss
Sun Nov 22, 2020 12:22 pm
Forum: Introduce yourself
Topic: Hello from West Sussex UK
Replies: 3
Views: 952

Re: Hello from West Sussex UK

Hi MicroSarah
You might also try
. Check out the galleries, but also click on the "Articles" tab and review the microscopy related articles.
Tom W.
by tgss
Thu Oct 29, 2020 6:50 pm
Forum: Microscopes and optics
Topic: Trouble with my stereo Barlow lens.
Replies: 1
Views: 367

Re: Trouble with my stereo Barlow lens.

HI Greg I can't speak to the 2x Barlow, but I bought a 0.5x supplementary lens for my stereo scope to give a wider field of view, and increased clearance for large samples when needed. My scope uses a dovetail column rather than a round column, and so has a limited range of adjustment. I found that,...
by tgss
Sun Oct 18, 2020 9:05 pm
Forum: Pictures and Videos
Topic: Leukocyte crawling in blood
Replies: 21
Views: 2530

Re: Leukocyte crawling in blood

Very, very interesting indeed to see that. Thanks for sharing.
Tom W.
by tgss
Thu Oct 15, 2020 10:38 pm
Forum: Introduce yourself
Topic: Hello from Ontario Canada
Replies: 10
Views: 1072

Re: Hello from Ontario Canada

Welcome RaineeDayze from a fellow Ontarian.
Tom W.
by tgss
Sun Oct 04, 2020 11:29 am
Forum: Pictures and Videos
Topic: Stained histological sections
Replies: 6
Views: 464

Re: Stained histological sections

Thanks for the response Naphthalene. I have done a little research since reading your original post. Wikipedia for example has quite a good article at https://en.wikipedia.org/wiki/Subcommissural_organ . For an organ that has been identified for such a long time, is evolutionarily ancient, is create...
by tgss
Sat Oct 03, 2020 4:47 pm
Forum: Pictures and Videos
Topic: Stained histological sections
Replies: 6
Views: 464

Re: Stained histological sections

Very nice work Naphthalene. Very nice sections and images indeed. I'm assuming the triangular structure in each image is the section of the subcomissural organ? I had never heard of this before, and wonder if there are any hypotheses as to it's specific secretory function.
Tom W.
by tgss
Sat Sep 26, 2020 4:54 pm
Forum: Pictures and Videos
Topic: Diatom 640X Oblique Illumination
Replies: 41
Views: 6361

Re: Diatom 640X Oblique Illumination

Thank you mrsonchus
These are quite a bit more informative than the previous "No Entry" signs ;) Very nice to see the technique so well used on botanical samples, rather than the usual pond life studies.
Tom W.
by tgss
Sat Sep 26, 2020 11:23 am
Forum: Pictures and Videos
Topic: Diatom 640X Oblique Illumination
Replies: 41
Views: 6361

Re: Diatom 640X Oblique Illumination

For some reason or other I can't see your images John. Am I the only one so affected?
Tom W.
by tgss
Sat Sep 12, 2020 8:02 pm
Forum: Pictures and Videos
Topic: Hannah's Salt Water Aquarium
Replies: 3
Views: 842

Re: Alex's Freshwater Aquarium

Nicely done. There seems to be enough variety in the aquarium to keep anyone busy for quite a while!
Tom W.
by tgss
Wed Sep 02, 2020 9:05 pm
Forum: Pictures and Videos
Topic: Programmed nuclear death in Paramecium
Replies: 17
Views: 2591

Re: Programmed nuclear death in Paramecium

Can you give me any idea (order of magnitude: minutes, hours, days) of how long it takes from completion of conjugation to completion of the programmed nuclear death process - i.e. complete resorption of the fragments of the old MAC? I wasn't sure so had to check the literature and it appears the p...
by tgss
Wed Sep 02, 2020 11:31 am
Forum: Pictures and Videos
Topic: Programmed nuclear death in Paramecium
Replies: 17
Views: 2591

Re: Programmed nuclear death in Paramecium

Excellent work Wes! The images are not only instructive but also attractive. Can you give me any idea (order of magnitude: minutes, hours, days) of how long it takes from completion of conjugation to completion of the programmed nuclear death process - i.e. complete resorption of the fragments of th...
by tgss
Mon Aug 24, 2020 11:16 am
Forum: Pictures and Videos
Topic: Stentor in pol interference contrast
Replies: 8
Views: 996

Re: Stentor in pol interference contrast

Quite spectacular! Thanks for sharing.
Tom W.
by tgss
Sat Aug 22, 2020 5:55 pm
Forum: Miscellaneous
Topic: Secret to tardigrades' toughness revealed by supercomputer simulation
Replies: 3
Views: 1042

Re: Secret to tardigrades' toughness revealed by supercomputer simulation

Hi DonSchaeffer
Yes, I do like that picture!
Tom W.
by tgss
Sat Aug 22, 2020 2:41 pm
Forum: Resources (online, books etc.)
Topic: Explore the World Using Protozoa
Replies: 0
Views: 1086

Explore the World Using Protozoa

"Explore the World Using Protozoa" by O. Roger Anderson & Marvin Druger published by NSTA Press (1997). https://www.abebooks.com/servlet/SearchResults?cm_sp=SearchF-_-topnav-_-Results&ds=20&kn=explore%20the%20world%20using%20protozoa&sts=t From the introduction: "All of the investigations in Explore...
by tgss
Sat Aug 22, 2020 2:32 pm
Forum: Beginner's corner
Topic: Suggestion for experiments?
Replies: 4
Views: 886

Re: Suggestion for experiments?

You might also try to buy or borrow a copy of "Explore the World Using Protozoa" by O. Roger Anderson & Marvin Druger published by NSTA Press (1997). I'll add an entry to the Resources forum since it doesn't appear to be included there. https://www.abebooks.com/servlet/SearchResults?cm_sp=SearchF-_-...
by tgss
Fri Aug 21, 2020 5:10 pm
Forum: Miscellaneous
Topic: Secret to tardigrades' toughness revealed by supercomputer simulation
Replies: 3
Views: 1042

Secret to tardigrades' toughness revealed by supercomputer simulation

I'm not sure if this article is accessible without a subscription to New Scientist, but if it is, it's an interesting read. https://www.newscientist.com/article/2252583-secret-to-tardigrades-toughness-revealed-by-supercomputer-simulation/ I suspect Nature will include an article on it in their brief...
by tgss
Wed Aug 19, 2020 2:20 pm
Forum: Pictures and Videos
Topic: Video of an Elodia Plant
Replies: 2
Views: 404

Re: Video of an Elodia Plant

Very nicely done with an excellent choice of music. Thank you.
Tom W.
by tgss
Mon Aug 17, 2020 1:50 am
Forum: Beginner's corner
Topic: Eosin Stain
Replies: 3
Views: 825

Re: Eosin Stain

Apparently eosin aqueous solutions are very prone to mould growth, so I suspect bacterial growth could also be an issue.
Tom W.
by tgss
Sun Aug 16, 2020 4:54 pm
Forum: Specimens, samples and slides
Topic: Does anyone else have this sample collecting problem?
Replies: 13
Views: 2475

Re: Does anyone else have this sample collecting problem?

Collapsible golf ball retriever adapted to take a small plastic bottle on the golf ball end. Here I must give a plug to Tony Pattinson's excellent books "The Freshwater Microscopist" including parts 2, 3, and 4, all available from Blurb Books.
Tom W.
by tgss
Wed Aug 12, 2020 7:44 pm
Forum: Pictures and Videos
Topic: Amphileptus pleurosigma
Replies: 4
Views: 762

Re: Amphileptus pleurosigma

Very nicely shot video, though I'm afraid I can't help confirm the ID. Thanks for sharing.
Tom W.