Search found 1451 matches

by charlie g
Wed Feb 19, 2020 2:28 am
Forum: Beginner's corner
Topic: Olympus CK Inverted Microscope Upgrade
Replies: 16
Views: 5331

Re: Olympus CK Inverted Microscope Upgrade

Hi Matt09 and all....terrific thread, thank you all. I dug out my boxed Olympus CK with it's trinoc nosepiece hosting: 4/ 0.10, with red band marking, 10/ 0.25, orange color band marking, C20/ 0.40/ 1.20 specs on barrel, yellow color band marking. Thanks to a kind forum poster into this thread...I s...
by charlie g
Sun Feb 16, 2020 2:07 am
Forum: Specimens, samples and slides
Topic: reflected light silicon chip die
Replies: 39
Views: 8993

Re: reflected light silicon chip die

Hi jb89, your relected-light 'round robin' group activity would be an excellent forum thread! My basic questions so far are: 1) what magnification objective are you depicting in this posts first image? 2) what is the working distance between objective and the target substraight? 3) May we see a pic ...
by charlie g
Sat Feb 15, 2020 12:32 am
Forum: Resources (online, books etc.)
Topic: The use of diatoms
Replies: 3
Views: 3627

Re: The use of diatoms

Wonderful link, thanks 75RR. Fig.4 depicts oil-inclusions in perhaps 29 diatom species...for me this eye-candy! Anecdotaly...I never had specific desire to pursue the matter: in my fingerlakes/US local...abundant oil-inclusion vesicles are a strongly 'winter season manefestation' I obsrve in winter ...
by charlie g
Thu Feb 13, 2020 9:34 pm
Forum: Introduce yourself
Topic: Hello from North Carolina!
Replies: 6
Views: 3917

Re: Hello from North Carolina!

Hello and welcome to a great community which Oliver Kim has developed. I urge you to obtain a low cost: micrometer measurement slide...and a micrometer reticule eyepiece...many low cost. You need a Plan achro 100X oil objective to comfortably measure your target spore dimensions...these too are avai...
by charlie g
Thu Feb 13, 2020 9:19 pm
Forum: Pictures and Videos
Topic: My first water bear
Replies: 9
Views: 3030

Re: My first water bear

Only, only if you feel it safe to do...get down to your water site...crack the ice with a shovel, a hammer, your boot...and collect a few samples from under the ice. Marvelous winter aquatic microscopy is out there. Charlie guevara
by charlie g
Thu Feb 13, 2020 5:36 pm
Forum: Pictures and Videos
Topic: My first water bear
Replies: 9
Views: 3030

Re: My first water bear

Great bear encounter, thanks 'WhyMe'. Your video works for me, and a wonderful water bear resource 75RR gave us with his link! My recent bear encounters last week from frozen outdoor waters...same dark brown compacted mass in my bears gut...were your bears winter/outdoor collected, WhyMe? Charlie Gu...
by charlie g
Thu Feb 13, 2020 4:52 pm
Forum: Introduce yourself
Topic: Hello from Sweden
Replies: 7
Views: 3783

Re: Hello from Sweden

Welcome, Kalie, and happy springtime'20. Charlie Guevara, fingerlakes/US
by charlie g
Wed Feb 12, 2020 3:00 am
Forum: Resources (online, books etc.)
Topic: An interesting report on ‘Calcifying Plankton’
Replies: 6
Views: 3527

Re: An interesting report on ‘Calcifying Plankton’

Thank you, thank you, Michael G for this worldview posting ...microscopy world views indeed. Figure #3 for me is so profound, with current microscopy level X-ray images, 3D computed image 'microscopy' contrasting past foram-protist shell thickness, with current times shell thickness...we inhale our ...
by charlie g
Thu Feb 06, 2020 8:33 pm
Forum: Pictures and Videos
Topic: Micrographs in Black & White
Replies: 22
Views: 4486

Re: Micrographs in Black & White

Thoughtful and profound microscopy observations with your B/W image captures spark my my reaction, thank you hkv. It has always given me pause at how with 'blasts of transmitted illumination'...a sample wet mount slide prep is oh so unnaturally visualized. I toyed with 'night vision' device to see i...
by charlie g
Thu Jan 23, 2020 9:29 pm
Forum: Pictures and Videos
Topic: Winter pond samples
Replies: 6
Views: 1121

Re: Winter pond samples

Fantastc encounters, Dawid, you certainly worked you phones camera features with excelleance, thank you. The water bear appeals to me as our human-scale companion animal family members, but the elegance of the diatoms, and the intricate structures in the protozoan are microscopy treats for me. That ...
by charlie g
Thu Jan 23, 2020 9:14 pm
Forum: Pictures and Videos
Topic: Radiolarians in the sea
Replies: 4
Views: 914

Re: Radiolarians in the sea

Thanks Saul for these beautiful stacked images of marine radiolarian 'shells'. I love your crediting : Diatom LAB/ Stefano Barone for the source of this radiolarian prepared slide. I too have purchased prepared radiolarian slides, and diatom slides from : Diatom Lab/ Stefano Bruno, I am quite please...
by charlie g
Fri Dec 27, 2019 8:54 pm
Forum: Pictures and Videos
Topic: Acridine orange adventures
Replies: 9
Views: 1343

Re: Acridine orange adventures

Thanks for these beautiful results, Wes. Was that first image a ciliate, and was that protozoan still active ( as in a gentle vital strain treatment with Janus Green)? It would be good to know how long you exposed these pond organisms to your dilute stain ( approx. that is), before these stain effec...
by charlie g
Wed Dec 04, 2019 4:44 pm
Forum: Miscellaneous
Topic: Private Messages Question
Replies: 3
Views: 1733

Re: Private Messages Question

Hi high plains sailor, I find our PM system has a dreadful aspect...I did not notice it at first. Folks who send you a PM can actually delete their PM to you..after you received the PM..I do not like this feature of forum PM system! Charlie guevara
by charlie g
Mon Dec 02, 2019 5:51 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

Thanks again Malphi, for the excellent spotlight on that vintage text: "Through Magic Glasses". Microscopy offers enjoyment in the texts as we all progressed on from Anton L. of Delft/Netherlands...we can pursue so much enrichment of our world views with microscopy, and forum microscopy as Oliver Ki...
by charlie g
Sun Dec 01, 2019 9:35 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

Hi, redflanker..the hydras by habit...feed at or near waters surface...in less than 2.53 cm deep ditch/ rut waters. But I crudely scooped my collection samples..so I did not know where these hydras were living. Hydras are quite mobile..so they perhaps go to different areas of shallow ditch-waters..a...
by charlie g
Sun Dec 01, 2019 9:29 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

Thanks, Michael G./ Malpi for your wonderful sharing of a 'founding text for you as a child' : " Through Magic Glasses"/ Ms. Arabella B. Buckley. I am eager to encounter and read this suggested text you treated us to images of. Thanks, M.G. for your pleasure with doggie and my recent microscopy fiel...
by charlie g
Wed Nov 27, 2019 5:16 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

Happy thanks giving day to all, Charlie guevara
by charlie g
Wed Nov 27, 2019 5:04 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

This 1880 London, UK text is in a series of natural history books for children. A microscopy treat for all ages! Aspects of Oliver's world wide microscopy forum carry on the pursuits advocated by this 1880 gem of a text. Charlie Guevara, finger lakes/US
by charlie g
Wed Nov 27, 2019 4:36 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

The near mono-culture ( certainly fair to call it an algal bloom) of one species of Spirogyra, the notable sprinkle of one species of large desmid within the filamentous algal bloom such charming hues of deep green and then the slow writhing/undulating Euglena species with their brick-red eye spots....
by charlie g
Wed Nov 27, 2019 4:25 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 37
Views: 7615

Re: Pater noster tractor ruts meiofauna and protists

These tractor rut collected Euglena species are loaded with food store paramylum bodies, it's 11/19..no show of flagelae, extreme writhing/ 'euglenoid motions' hamper in focus total organism images. The writhing, spiral motions, the waves of bulges progressing along the Euglena's body lengths a plea...
by charlie g
Thu Nov 07, 2019 12:14 am
Forum: Pictures and Videos
Topic: Micro hedgehog
Replies: 14
Views: 2234

Re: Micro hedgehog

Hi Bob, our son had two pet shop bought hedgehogs ( same species as yours I sense), great pets for years. They love meal worms/ adult beetles of these meal worms. They constantly lick their spines to insure an irritant of their saliva coats the points of their spines. They enjoy being handled and do...
by charlie g
Wed Nov 06, 2019 9:31 am
Forum: About the website, the magazine and this forum
Topic: Vetting newcomers
Replies: 15
Views: 5288

Re: Vetting newcomers

So here we have it forum folks..what to do about this irksome senior poster...hmmm. all the best, Charlie Guevara who supports free speech...but forum manners and seniors not lapsing off their needed cognition-meds.
by charlie g
Wed Nov 06, 2019 9:17 am
Forum: About the website, the magazine and this forum
Topic: Vetting newcomers
Replies: 15
Views: 5288

Re: Vetting newcomers

...regarding temp-ban/ total ban of permission to forum post..IMHO this approaches mind control/ free speech suppression...a very tough call..leave this to Oliver Kim, IMHO. A senior gent from Texas...suggested my formal occupational service sub-par, he went on to demean me ...all in his intrusion i...
by charlie g
Wed Nov 06, 2019 9:02 am
Forum: About the website, the magazine and this forum
Topic: Vetting newcomers
Replies: 15
Views: 5288

Re: Vetting newcomers

I sense the: ! button works if utilized. Regarding a recent spam post to forum: 'ammo directory', good forum folk played with this spam intrusion with wit and glee, no use of the : ! flag tool I was tempted to enter in the fun by comments on need for better 'electron-guns' for our areas SEM units. R...
by charlie g
Mon Nov 04, 2019 12:54 am
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 2370

Re: Ciliate in Methylcellulose

Hi Chris , I totally agree with our tight working distance / high magnification objectives, there is a sweet spot amount of sample fluid+ MC...to keep the slide/sample film/coverslip sandwich at very thin thickness. Often in wetmount slides, the fluid 'moats up' all around the cover slip border zone...
by charlie g
Sun Nov 03, 2019 7:11 pm
Forum: Pictures and Videos
Topic: Wait for it !
Replies: 17
Views: 4000

Re: Wait for it !

Thanks, mintakax, for a great encounter..is the illumination method a type of phase-contrast? Please speak a bit on this illumination method you used. thanls, Charlie guevara
by charlie g
Sun Nov 03, 2019 6:53 pm
Forum: Introduce yourself
Topic: Hi
Replies: 13
Views: 4113

Re: Hi

It is certainly a desmid species, I'd bet (???) a toy microscope on this...heh, heh. Charlie guevara
by charlie g
Sun Nov 03, 2019 6:47 pm
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 2370

Re: Ciliate in Methylcellulose

Thanks Chris for this excellent MC thread, posts quite thoughtful and specific for my needs. Vance Tartar in his 1961 text on Stentor species opines..different protozoa have different sensitivities to MC immersion, but Vance uses his MC solutions no more than 2 months, than makes fresh batch, Vance ...
by charlie g
Sun Nov 03, 2019 5:50 pm
Forum: Introduce yourself
Topic: Hi
Replies: 13
Views: 4113

Re: Hi

Welcome, rob. I too have a closet full of tiny student---toy monoc scopes like you share image of. Your more substantial scope seems a great 'work horse stand'. I note you actually imaged forum member 75RR's avatar...perhaps it is out of focus more than empty magnified desmid? Thanks for the greetin...
by charlie g
Sun Nov 03, 2019 5:33 pm
Forum: Pictures and Videos
Topic: Green Hydra (Chlorohydra viridissima)
Replies: 7
Views: 1391

Re: Green Hydra (Chlorohydra viridissima)

Thanks for sharing this beautiful , and microscopically classic historic organism in your current posting, Chris. Dark field illumination of this organism works best for me. wonderful encounter you share...I hope you can keep a population of these hydras. Charlie guevara