Conversation

I basically have no orientation here. Okay, so there's this entire universe of stuff down there. I have a basic high-school biology level sense of what that stuff is... cells, tissues, etc. But I don't have a handle on it really 🤔
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Ok. First big realization: I have NO idea what I'm looking at. The slide says "pig adipose cell" or "mouse epithelial cell" and I can focus and look at it at various magnifications... but I can't actually figure out what the cell boundary is or what the various doodads are.
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Second learning: even though these are approximately 2d things I'm looking at, thin, translucent slices of tissue mounted on slides, there's still a 3rd dimension at the higher magnifications. You have to keep adjusting the focus to see details at different depths.
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Interesting diff from telescopes, where distances are so vast, one focal adjustment makes all of (for eg) Jupiter equally sharp. Or even the moon. At least I haven't noticed any depth-of-field effects with even the moon. The ratio of depth to distance for moon is 0.00451653411 🤔
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The thinnest specimens are apparently around 5μm, or 0.005mm. If the distance to the objective is 1mm, that's a ratio comparable to the moon in a telescope, so I'm missing something, because the moon doesn't seem to present such focusing issues.
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Something just hit me. Everybody sees the same Jupiterin a telescope but my bio slides are uniquely mine. Even though I bought a cheap set of 100 standard specimen slides, they are different from what other customers get. So your pig cell slide is not my pig cell slide.
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Slime mold! Just found a little 1cm square of slime mold that sent me a few years back for contributing to an art thing she was doing (the slime mold came with the book she made), and now that I have a microscope I can actually look at it.
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I’d totally forgotten this thing till I found the slime mold. My actual thing was an interview with Jenna about decentralized orgs and management. Found the book the mold came in. Only moldy-by-design book I own. 🤣
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