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> sometimes be optical illusions “created by folds or wrinkles in much larger ‘sheets’ of solar material that the authors call coronal veils.” So we’re seeing
by NegativeLatency 4y ago
> sometimes be optical illusions “created by folds or wrinkles in much larger ‘sheets’ of solar material that the authors call coronal veils.”
So we’re seeing a sheet of paper from the side?
- kcexn 4y agoMore like if you take some cellophane and crinkle it up. The thicker parts block more light than the thinner parts, so if you look at the shadows, you'll see structures that aren't representative of the shape of the material.
- evrydayhustling 4y agoI, for one, find the veil model just as cool and spectacular as the loops. I object to calling it "just an optical illusion"!
- simonh 4y agoThey’re not calling the veil model an optical illusion, they’re just saying that the loop like structures we think we see are deceptively limited side effects of some aspects of the veil structures. It’s the image that’s the illusion, because it misleads us about the reality.
- deleted 4y ago[deleted]
- evrydayhustling 4y agoGot it! Still I object to the "just" - this illusion makes it cooler :)
- egypturnash 4y agoNah, more like wrinkled gauze. In fact there is a photo of a beautifully low-tech model at the bottom: two styrofoam balls, one with a few loops of plastic thread stuck in it, one with a loop of a wrinkled, gauzy fabric. Both are casting a shadow on the wall; the gauzy fabric's shadow has a lot of subtleties of translucency that the thread doesn't, and does indeed look more like all the sun photos above it.