Amoeba (arcella?) 'walking'
Amoeba (arcella?) 'walking'
I love the way amoebas move, and especially when they appear to get up and walk
video sped up to 4x speed.
http://www.youtube.com/watch?v=HqR_qeFz ... e=youtu.be
Re: Amoeba (arcella?) 'walking'
That is awesome.
Re: Amoeba (arcella?) 'walking'
mnmyco thanks i just uploaded another vid of the same kind of amoeba but using a phase contrast objective (mismatched condenser but still works okay) - actually, since getting hold of the parts to make phase contrast i've been searching out amoebas and recording various species, quite a neat invention for otherwise transparent subjects, and still a novelty for memnmyco wrote:That is awesome.
thanks for looking
Re: Amoeba (arcella?) 'walking'
Nice idea to speed up the movement. Works very well!
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Amoeba (arcella?) 'walking'
Very cool.
Agree with 75 - great idea to speed it up.
Agree with 75 - great idea to speed it up.
Re: Amoeba (arcella?) 'walking'
Very nice demonstration. Especially the BF video.
Re: Amoeba (arcella?) 'walking'
cheers fellas - yeah, i did find a lot of the amoebas were rather slow moving, although i did find one that blew me away - it wasn't just fast moving, it also had strange thin and numerous pseudo-pods that seemed to be shooting outwards [a bit] like mini grappling hooks - at least that was how i imagined it.
Hard to explain, but it seemed to shoot out new shoots instead of moving the existing ones around.. and quite quickly too.
Would really like to get an ID on it if anyone can help?
EDIT; Ps the vid is not sped up like the others, it is at original speed - edit; objective was a 40x phase from ebay - not as good as the 25x apo but still pretty usable
Hard to explain, but it seemed to shoot out new shoots instead of moving the existing ones around.. and quite quickly too.
Would really like to get an ID on it if anyone can help?
EDIT; Ps the vid is not sped up like the others, it is at original speed - edit; objective was a 40x phase from ebay - not as good as the 25x apo but still pretty usable
Re: Amoeba (arcella?) 'walking'
Most interesting. Amoeba on steroids!
Will guesstimate: Rhogostoma sp.
Will guesstimate: Rhogostoma sp.
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Amoeba (arcella?) 'walking'
Hi Aenima,
the first one is a Centropyxis most probably aculeata.
Second one ?? I wonder if phase contrast is the right method for this kind of object?
The last one??
Cheers,
Hans
the first one is a Centropyxis most probably aculeata.
Second one ?? I wonder if phase contrast is the right method for this kind of object?
The last one??
Cheers,
Hans
http://www.hans-rothauscher.de/testaceen/
Zeiss KF2, ToupCam 5 MP
Zeiss KF2, ToupCam 5 MP
Re: Amoeba (arcella?) 'walking'
thanks i looked it up and it seems bang-oncuxlander wrote:Hi Aenima,
the first one is a Centropyxis most probably aculeata.
yeah it's very unattractive, especially the murky looking shell (test?) but i sometimes like the high contrast on the pseudopods - particularly if they're invisible using regular brightfield - although in the case of the second one i was quite happy with the brightfield footage already captured and just thought i'd give phase contrast a try, mostly because it's rather a novelty at the momentSecond one ?? I wonder if phase contrast is the right method for this kind of object?
yeah no idea i tried google on 75RRs suggestion but haven't managed to find any similar looking images to compare..The last one??
appreciate the ideas and suggestions, thanks
Re: Amoeba (arcella?) 'walking'
Thank you for showing, Aenima!
this shows how vision and recognition depend on speed.
We probably don't recognize a lot of things because they happen either too fast or too slow.
Bob
this shows how vision and recognition depend on speed.
We probably don't recognize a lot of things because they happen either too fast or too slow.
Bob
Re: Amoeba (arcella?) 'walking'
On further research I would have to agree that Rhogostoma sp. is most probably a miss-identificationi tried google on 75RRs suggestion but haven't managed to find any similar looking images to compare..
Now putting forward Arachnula, with I hope better results.
https://www.youtube.com/watch?v=OIlL8uYW5qs
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Amoeba (arcella?) 'walking'
75RR wow - thats really weird, i actually mentioned spiderman in my youtube description accompanying the upload, and now i find your link goes to a similarly described amoeba - and a very close comparison too. Thank you 75RR, a big help
microbob - indeed very true - timelapse nature footage being a good example
---------------------------------------------- *and many other things, like, on a completely different note, quite a lot of social trends and patterns seem to be unnoticed because they occur slowly, often only recognized in hindsight. I call it the boiling frog syndrome (as do many others) -a kind of 'fable' that a frog can be happily cooked if you put it in warm water initially and increase heat slowly...
microbob - indeed very true - timelapse nature footage being a good example
---------------------------------------------- *and many other things, like, on a completely different note, quite a lot of social trends and patterns seem to be unnoticed because they occur slowly, often only recognized in hindsight. I call it the boiling frog syndrome (as do many others) -a kind of 'fable' that a frog can be happily cooked if you put it in warm water initially and increase heat slowly...
- ImperatorRex
- Posts: 571
- Joined: Fri Mar 30, 2018 4:12 pm
- Location: Germany
- Contact:
Re: Amoeba (arcella?) 'walking'
thanks manImperatorRex wrote:Wonderful videos!