Sea urchin spike
Apr 28, 2018 • 5:03 AM UTC
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Microorganisms
varuni
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Found this sad sea urchin washed up on the beach last week:
Here is one of its scary looking spikes:
Was hard to see anything with the usual Foldscope set up. So after digging around a bit on the Microcosmos site, I found this post:
A simple hack for reflection/epi-illumination using the foldscope
Using a similar set up with an LED and a battery, inserted from one side of the stage:
A simple hack for reflection/epi-illumination using the foldscope
Using a similar set up with an LED and a battery, inserted from one side of the stage:
I got a lovely view of the spike!
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