joigus Posted August 27, 2020 Posted August 27, 2020 I would like to create a little room here for the wonderfully unexpected, beautiful,... (add your adjective) in Nature. Unexpected and/or beautiful could be interpreted as curious/spectacular, or similar. I mean to use these examples in order to keep the kids interested in Nature. The youngest ones get bored very easily. Examples could be: a rare animal, plant or protist, an almost unbelievably beautiful geological phenomenon, an amazingly complicated molecule that looks like a tinker-toy assembly, spectacular phenomena in water eddies and such. You get the idea. My getting-started examples: Glasswinged butterfly A family of butterflies that eat poisonous leaves when they're caterpillars and grow transparent wings. https://en.wikipedia.org/wiki/Greta_oto Rainbow Eucalyptus tree A species of tree that looks as if somebody had Photoshop-painted them. https://en.wikipedia.org/wiki/Eucalyptus_deglupta Maths are also welcome. Things that look paradoxical like 0.9999999... = 1 would be the idea. I'm sure people will enrich this with possibilities I'm not foreseeing. 3
studiot Posted August 27, 2020 Posted August 27, 2020 Look here for the connection to Science. https://books.google.co.uk/books/about/The_Self_made_Tapestry.html?id=Fz1RAAAAMAAJ&redir_esc=y or here for the comparison of how Nature does things v how man achieves the same objects. https://books.google.co.uk/books/about/Cats_Paws_and_Catapults.html?id=fdihsss71tAC&redir_esc=y 1
joigus Posted August 27, 2020 Author Posted August 27, 2020 (edited) On 8/27/2020 at 4:42 PM, iNow said: Grand Prismatic Spring in Yellowstone <image> Expand Thanks a lot. +1 I will adjoin the wikipedia link here, for completeness. https://en.wikipedia.org/wiki/Grand_Prismatic_Spring And a brief explanation of the most outstanding feature: Quote The bright, vivid colors in the spring are the result of microbial mats around the edges of the mineral-rich water. The mats produce colors ranging from green to red; the amount of color in the microbial mats depends on the ratio of chlorophyll to carotenoids and on the temperature gradient in the runoff. In the summer, the mats tend to be orange and red, whereas in the winter the mats are usually dark green.[8] The center of the pool is sterile due to extreme heat. The deep blue color of the water in the center of the pool results from the intrinsic blue color of water. The effect is strongest in the center of the spring, because of its sterility and depth.[9] Expand Edited August 27, 2020 by joigus
Curious layman Posted August 27, 2020 Posted August 27, 2020 (edited) Volcanic lightning is hard to beat. https://en.m.wikipedia.org/wiki/Volcanic_lightning Calbuco, The Awakening.” ... Calbuco Volcano is located in the lakes region south of Santiago, Chile’s capital city and is one of the 10 most dangerous volcanoes in the country. After more than 40 years of inactivity, the day April 23 the volcano erupts, spewing more than 200 million tons of ash https://www.dailytelegraph.com.au/news/photos/national-geographic-photo-contest-2015/image-gallery/a2afa2087ecd4f4d62475d231b129e31 Edited August 27, 2020 by Curious layman 5
joigus Posted August 27, 2020 Author Posted August 27, 2020 (edited) On 8/27/2020 at 6:07 PM, Curious layman said: Volcanic lightning is hard to beat. Expand Absolutely science-spectacular. Thank you. +1 On 8/27/2020 at 2:49 PM, studiot said: Look here for the connection to Science. https://books.google.co.uk/books/about/The_Self_made_Tapestry.html?id=Fz1RAAAAMAAJ&redir_esc=y or here for the comparison of how Nature does things v how man achieves the same objects. https://books.google.co.uk/books/about/Cats_Paws_and_Catapults.html?id=fdihsss71tAC&redir_esc=y Expand Thank you, Studiot. +1 Somewhere I had an answer written for you, but I must have lost it. A bookish answer, as always. Edited August 27, 2020 by joigus
joigus Posted September 9, 2020 Author Posted September 9, 2020 I found this beauty on the web today: https://www.freshdaily.ca/travel/2020/01/pingualuit-crater-quebec-canada/ ------------------------------------------------- Some facts from http://craterexplorer.ca/pingualuit-impact-crater/: Pingualuit Crater Lake, Québec. Pingualuit ᐱᖑᐊᓗᐃᑦ is an Inuit word meaning pimple. Ironically, Pingualuit Crater Lake is said to have the purest freshwater on earth. The crater surrounding the lake was formed by a meteorite over 1.4 million years ago in the Pleistocene Epoch. The meteorite evaporated on impact in an explosion which melted thousands of tons of stone and wiped away all life for hundreds of kilometres around the crater. Local Inuit people consider this unusually calm place to be a site of extreme power, where one comes to revitalize oneself. In order to protect this unique impact crater, Pingualuit National Park was established in 2004. Photo Credit: NASA -------------------------------------------------- List of lakes that formed as a consequence of meteorite impacts: https://time.com/4371446/these-tranquil-lakes-are-actually-ancient-impact-craters/#:~:text=Clearwater%20Lakes%20(Lac%20%C3%A0%20l,Eau%20Claire)%2C%20Quebec%2C%20Canada&text=About%20290%20million%20years%20ago,in%20Quebec's%20largest%20national%20park. If anybody has been there or has anything more to say, I'd be very interested to read about it. 1
Dord Posted September 12, 2020 Posted September 12, 2020 (edited) The winners of the Insight Investment Astronomy Photographer of the Year 2020 awards have been announced with some truly spectacular images. https://www.bbc.co.uk/news/amp/in-pictures-54105085 Nicolas Lefaudeux: Overall Winner I don't have sufficient permissions to upload all the images but I'd like to give the winners a name check nonetheless... Nicholas Roemmelt: Aurorae category Bence Toth: Best New Comer Alain Paillou: Our Moon category Alexandra Hart: Our Sun category Lukasz Sujka: Planets, Comets and Asteroids category Thomas Kast: Skyscapes category Peter Ward: Stars and Nebulae category Alice Fock: Young category Julie F Hill: Annie Maunder Prize for Image Innovation Finally, Rafael Schmall: People and Space category (my particular favourite) The star in the centre of the image is the Albireo double star, surrounded by trails of moving satellites. Edited September 12, 2020 by Dord 3
joigus Posted September 23, 2020 Author Posted September 23, 2020 Thanks a lot, @Dord. The Andromeda looks sooo 3D... Here's some beetles of the genus Chrysolina: https://en.wikipedia.org/wiki/Chrysolina They eat leaves. Some species have been used for weed control. Why do they look so metallic?
Dord Posted September 27, 2020 Posted September 27, 2020 On 9/23/2020 at 8:16 PM, joigus said: Why do they look so metallic? Expand It seems to be pretty awesome looking camouflage... Quote A team of researchers at the University of Costa Rica has found that the beetles' metallic appearance is created by the unique structural arrangements of many dozens of layers of exo-skeletal chitin in the elytron, a hardened forewing that protects the delicate hindwings that are folded underneath [ ... ] "The metallic appearance of these beetles may allow them to be unnoticed, something that helps them against potential predators," says physicist and study leader William E. Vargas. The surface of their elytra "reflects light in a way that they look as bright spots seen from any direction," he explains. "In a tropical rainforest, there are many drops of water suspended from the leaves of trees at ground level, along with wet leaves, and these drops and wet leaves redirect light by refraction and reflection respectively, in different directions. Thus, metallic beetles manage to blend with the environment." Expand https://www.sciencedaily.com/releases/2011/04/110425120344.htm#:~:text=A team of researchers at,hindwings that are folded underneath. 1
jon12MZ Posted October 25, 2020 Posted October 25, 2020 (edited) iNow, wow, that's amazing for sure. Edited October 25, 2020 by jon12MZ
zapatos Posted October 27, 2020 Posted October 27, 2020 (edited) Okunikko, Japan: Kegon Falls, in Nikko National Park, are surrounded by Mongolian oak, maple, azalea and other trees, making it a particularly beautiful spot in autumn. Ryohei Moriya/The Yomiuri Shimbun/AP Edited October 27, 2020 by zapatos 2
joigus Posted October 27, 2020 Author Posted October 27, 2020 On 10/27/2020 at 8:05 PM, zapatos said: <image> Okunikko, Japan: Kegon Falls, in Nikko National Park, are surrounded by Mongolian oak, maple, azalea and other trees, making it a particularly beautiful spot in autumn. Ryohei Moriya/The Yomiuri Shimbun/AP Expand Thank you, Zapatos. I've found a little bit more of the geological history on Wikipedia: Quote Kegon Falls (華厳滝, Kegon Taki) is located at Lake Chūzenji (source of the Oshiri River) in Nikkō National Park near the city of Nikkō, Tochigi Prefecture, Japan. The falls were formed when the Daiya River was rerouted by lava flows. The main falls had a height of approximately 97 metres (318 ft) and about twelve smaller waterfalls are situated behind and to the sides of Kegon Falls, leaking through the many cracks between the mountain and the lava flows. Expand https://en.wikipedia.org/wiki/Kegon_Falls Quote Cascading from Lake Chuzenji at a height of 97 meters, Kegon Falls [...] Lush greenery surrounds the area in spring, migratory Asian house martins visit in summer, and the waterfall freezes solid in winter. Expand From https://www.visitnikko.jp/en/spots/kegon-falls/ The place is such a tourist magnet that it's kinda difficult to find something more science-oriented about it: Geology, fauna and flora, etc. 1
joigus Posted November 12, 2020 Author Posted November 12, 2020 (edited) Bouddi National Park (New South Wales, Australia.) This Australian National Park features the presence of sandstone, coloured by haloes of chemical change, brought up by differential oxidation of iron minerals in the presence of moisture (Liesegang rings*) as those in Maria Island presented in the previous series of photographs. ---------- (*) Liesengang rings are rings of chemical change that colour the interior of certain rocks. They are formed by oxidation of iron minerals due to moisture penetrating the rocks through their porous structure. Generally that moisture filters through fracture lines in the rocks, thus producing concentric rings towards the centre of the blocks that the fracture lines define. CREDITS: https://www.facebook.com/Geomorfologia.Para.Todos/posts/4021501111197661 (Translated from Spanish) (Geomorphology for everyone) https://forum.xcitefun.net/bouddi-national-park-australia-t83280.html Edited November 12, 2020 by joigus 1
Airbrush Posted November 12, 2020 Posted November 12, 2020 https://www.businessinsider.com/hirise-photos-of-mars-2015-3#shown-here-are-plateaus-with-gentle-slopes-lined-with-almost-perfectly-spaced-sand-dunes-this-spacing-is-sensitive-to-wind-that-helps-give-scientists-clues-of-the-sedimentary-history-of-the-surrounding-terrain-4 2
joigus Posted November 12, 2020 Author Posted November 12, 2020 On 11/12/2020 at 5:04 PM, Airbrush said: https://www.businessinsider.com/hirise-photos-of-mars-2015-3#shown-here-are-plateaus-with-gentle-slopes-lined-with-almost-perfectly-spaced-sand-dunes-this-spacing-is-sensitive-to-wind-that-helps-give-scientists-clues-of-the-sedimentary-history-of-the-surrounding-terrain-4 Expand Thanks a lot, Airbrush, for amazing pictures and captions with info. 1
joigus Posted November 22, 2020 Author Posted November 22, 2020 Treehoppers!! Quote Treehoppers (more precisely typical treehoppers to distinguish them from the Aetalionidae) and thorn bugs are members of the family Membracidae, a group of insects related to the cicadas and the leafhoppers. About 3,200 species of treehoppers in over 400 genera are known.[1] They are found on all continents except Antarctica; only five species are known from Europe. Individual treehoppers usually live for only a few months. Expand (from Wikipedia.) https://en.wikipedia.org/wiki/Treehopper Oak treehopper: https://insider.si.edu/2017/08/beautiful-bizarre-treehoppers-suck-sap-can-spread-disease/8577969459_49866036ff_b/ Quote [...] The case of the treehopper helmet isn’t fully closed, though. How wing genes get turned on in pronotum cells, and what—if anything—they have to do with the sheer diversity in the structure’s shape and size remain unresolved. Researchers aren’t even totally sure what purpose the helmets serve, though many suspect the insects are mimicking their surroundings to either blend in or warn predators to stay away (as a wasp-looking helmet might do). Expand (from Smithsonian Magazine online.) https://www.smithsonianmag.com/science-nature/treehoppers-bizarre-wondrous-helmets-use-wing-genes-grow-180973713/
MigL Posted November 22, 2020 Posted November 22, 2020 (edited) I like the photos and links to waterfalls, sandstone landscapes, and starscapes, but please, no more giant pictures of bugs. I feel itchy all over, like bugs are crawling all over me, after I see those. Edited November 22, 2020 by MigL
joigus Posted November 22, 2020 Author Posted November 22, 2020 (edited) On 11/22/2020 at 5:47 AM, MigL said: I like the photos and links to waterfalls, sandstone landscapes, and starscapes, but please, no more giant pictures of bugs. I feel itchy all over, like bugs are crawling all over me, after I see those. Expand I tried to make them smaller or link to thumbnail versions... I would've thought you'd like them, given how fond you are of science fiction. Edited November 22, 2020 by joigus
zapatos Posted November 22, 2020 Posted November 22, 2020 On 11/22/2020 at 5:47 AM, MigL said: I like the photos and links to waterfalls, sandstone landscapes, and starscapes, but please, no more giant pictures of bugs. I feel itchy all over, like bugs are crawling all over me, after I see those. Expand Never should have shared that! 😂 1
MigL Posted November 22, 2020 Posted November 22, 2020 I've never been so tempted to give somebody a neg rep, Zap .
joigus Posted November 22, 2020 Author Posted November 22, 2020 On 11/22/2020 at 4:27 PM, MigL said: I've never been so tempted to give somebody a neg rep, Zap . Expand Neither have I, but it's just because of the lack of information about that lovely fellow.
MigL Posted November 22, 2020 Posted November 22, 2020 Lovely ?? Your standards for 'lovely' are quite low . 1
joigus Posted November 22, 2020 Author Posted November 22, 2020 On 11/22/2020 at 4:34 PM, MigL said: Lovely ?? Your standards for 'lovely' are quite low . Expand That's quite common between men my age. You just made me a primate, @MigL.
Ghideon Posted November 22, 2020 Posted November 22, 2020 @MigL: Bug free images. When conditions are right the water from the gentle waves in the lake embeds the stones and vegetation in almost transparent ice bubbles. (Getting into a better position or angle to take the pictures was not worth the risk. Or maybe I was getting too old and lazy) 1
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