The sky bursting full of rapid and illuminated clouds, rushing bright blue against an indigo background, made me feel I was looking up at the planet Neptune, stretching from one horizon to the other. I went inside, to get my phone, to snap a picture, but, when I got back out, the eighth planet above had been replaced — by a stormy-but-normal third-planet sky. I came back inside with no images, except in memory.
At the time my wife took this picture, I did not yet realize that we were walking around on an active volcano when we recently visited Yellowstone National Park. The outgassing behind me, which I had just walked through, should have clued me in, since it had a strong smell of hydrogen sulfide mixed with hydrochloric and sulfuric acids. At a gift shop, I found a book by Greg Briening called Super Volcano: The Ticking Time Bomb Beneath Yellowstone National Park. It explains the science of Yellowstone, and makes a strong case that the volcano that created Yellowstone will blow up again, possibly soon, with cataclysmic consequences worldwide.
Over the years, literally hundreds of people have told me that spiders are not animals. This seems to happen the majority of the times that the topic of spiders comes up in conversation. When I reply that spiders are, in fact, animals, the usual response is “Spiders are insects!” This gives me headaches, because (1) spiders aren’t insects, and (2) insects are also animals.
Spiders happen to be my favorite animal, so this is quite confusing to me. Hopefully, this screenshot from my Google-search for “animal definition” will help spread the word that spiders are, indeed, part of the animal kingdom.
The duals of the geodesic domes are polyhedra with hexagonal and pentagonal faces. This particular one has 320 vertices, with those vertices representing carbon atoms in the molecular version of this solid. Here is C320 as a polyhedron.
The next image shows this molecule as a ball-and-stick model.
Finally, here it is as a space-filling molecular model.