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Closterium
Posted: Fri Jun 26, 2020 9:04 am
by janvangastel
I found a closterium (I think). I made a video in dark field, to be seen below. Last part of the video showes it being crushed and spilling its content. I wonder what moves inside of the alge. I read it could be brownian motion, but some particles really travel far.
Re: Closterium
Posted: Sun Jun 28, 2020 5:53 pm
by janvangastel
Found some references to brownian motion on the internet and some simulations. The particles can really travel 'far' if lucky, meaning 'hit by molecules moving in about the same direction'.
Re: Closterium
Posted: Sun Jun 28, 2020 8:13 pm
by 75RR
Nice catch and darkfield.
Lots of desmids ... must be summer!
Re: Closterium
Posted: Mon Jun 29, 2020 7:41 am
by MicroBob
Hi Jan,
that is a nice desmid you found there! They are also nice objects for Rheinberg illumination.
Bob
Re: Closterium
Posted: Mon Jun 29, 2020 3:22 pm
by janvangastel
I have been thinking about that, but I don't have the Rheinberg filters yet. Is it also possible to get this type of illumination with a color filter on the field lens, below the condenser plus a dark field filter in the condenser filer tray? I have some color filters and I also have dark field filter.