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Everything posted by kerbiloid
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totm aug 2023 What funny/interesting thing happened in your life today?
kerbiloid replied to Ultimate Steve's topic in The Lounge
Coincidence? I don't think so. Looks like a plan. -
A Superpower That Is Perhaps Not Overpowered But Incredibly Useful...
kerbiloid replied to Spacescifi's topic in The Lounge
A crowd of people is a liquid body with cell membranes inside. -
Machine Gun with Ammo Box.
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A Superpower That Is Perhaps Not Overpowered But Incredibly Useful...
kerbiloid replied to Spacescifi's topic in The Lounge
70% of everyone's body is water. -
No snow. Rain again.
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[New] Space Launch System / Orion Discussion Thread
kerbiloid replied to ZooNamedGames's topic in Science & Spaceflight
And this limits the flights with the years of calm Sun. Appropriate for rare lunar expeditions, but what about regular traffic to the lunar station, when the flights are required every several months to return th crew from the low gravity. Also what about the bouncing of a capsule from the atmosphere? Planned but not used, but still probably able to happen. The capsule enters the atmosphere at nearly escape speed, bounces off, and passes to the intermediate orbit, which may appear to be 20 000 km high. So, a whole day inside the radiation belts, and especially in a year of active Sun. What should protect the crew except several centimeters of heat protection? Well, the crew is not deadly irradiated, but the heatshield is partially spent and maybe damaged, it could be deformed by high temperatures, and now it should withstand a new re-entry. Another such thing are Martian flights. While you can wait for a calm year and quickly jump to the Moon, you can't neither predict the solar activity three years later, nor postpone the return from the Mars. Well, the interplanetary ship may be thick and bulky, but in any case they should sit into an Orion capsule to return to the Earth, and have to spend from several hours to several days in it. What if the Sun is active that year? Starship can have thicker protection, due to greater diameter, but its ability to survive even circular speed reentry, let alone escape speed, is not proven at all, and its shape makes doubt in its ability. It may look like only a two-stage capsule design is perfect, A small cramped capsule on top, for final reentry, with a hatch in the floor, through its heatshield. And a separate semi-capsule below, with primary heatshield, cramped shelter/toilet for the whole crew, surrounded with heavy dense things around, for primary re-entry and for surviving the radiation events. So, the double-capsule (with the crew in top cabin) enters the air, spends its heatshield, bounces off, spends hours in radiation belts under the active Sun, with the crew moved to the dungeon toilet. Before the secondary re-entry the crew again takes its seats in the top capsule, jettisonnes the dungeon pod, and enters the atmosphere like after normal LEO flight. -
As I noticed, the "rotten" smell/taste change exactly matches the substances containing sulfur compounds, like meat, eggs, onion/garlic, sweat, etc. It's a pity, there was no Head & Shoulders shampoo at hands to test this theory with selenium (a chemical analog of sulfur).
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The hearing. If it fits in an ear, it's a pencil. If it doesn't, it's a penny.
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There was a whole article with pictures on topic of polyhedral planets in Tekhnika Molodezhi / Technology for the Youth magazine in late 1970s, but can't find it online. After having created the planet, make it ocean and watch its shape. As the mass of any such planet will be anyway concentrated around its geometrical center, the ocean surface will have a nearly-spherical shape. This demonatrates that the normal vector of gravity will be pointing at the center of the planet on the water surface and at the coastline, and on top of the vertices and edges. The vertices will look like mountain peaks, connected with edge mountain ridges. The ocean will consist of lakes in the centers of the faces, separated with these ridges. Walking away from the lake towards the edge or vertex, you will quickly notice that the gravity normal vector (pointing at the center of the planet) makes you hardly climbing up. Some of the peaks and ridges can stick out of the atmosphere, but if they don't, then you will have several separated local weather system at every face. P.S. If you make a solid model of the planet (say, out of clay) and attach a thread to an arbitrary point, the planet will be hanging down more or less showing you a local gravity vector at the point of attachment. Say, stick a needle with thread into that point. (Because irl the thread axis will be passing to the Earth center through the CoM of the planet model). Thus, you can picture the gravity and draw it on paper.
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And this link? https://img2.joyreactor.cc/pics/post/webm/овощи-гриль-гифки-7683740.webm
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I wouldn't be so sure. https://cs14.pikabu.ru/video/2022/11/09/1668005892219193697_406x720.mp4 (Idx, if you can watch the video.)
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It's more generic. *** But from the combinatorics (and statistical physics) pov, the square is more complex, because it has greater number of possible states or the mode rearrangement cases.
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If look at the square from the edge, two vertices can shadow each other, and you see a triangle... from edge. Btw, if look from edge at a triangle, you can see an exotic two-vertex figure, twangle. Also from edge. So, we can speak about 2, 3, and 4- vertex triangles as a general case.
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Are Breathable Desert Planets Unrealistic?
kerbiloid replied to Spacescifi's topic in Science & Spaceflight
Dune. -
Are Breathable Desert Planets Unrealistic?
kerbiloid replied to Spacescifi's topic in Science & Spaceflight
The problem is that the acids and aldehydes should be first produced from something. -
Mars Rover Perseverance Discussion Thread
kerbiloid replied to cubinator's topic in Science & Spaceflight
If you have cone cells of two kinds (orange and blue), why not. Notice the sky color looking rather not natural. https://www.dailymail.co.uk/sciencetech/article-2981558/Forget-dress-colour-MARS-people-say-planet-blue-green-pink-red.html Also google for the US flag emblem on the Martian rovers. In reality it has standard colors, so the colors can be restored with Photoshop color tools. https://en.wikipedia.org/wiki/Flag_of_the_United_States#Colors -
Abkhazia, Turkey, MidEast. The way to store them in relatively cold climate. In Soviet times - easy to gather and store the best dishes for the New Year. Since then - familiar and good taste. The pickled ones are usually self-made in summer. They are made in Baltic republics since Soviet times, and on Russian Far East and Kaliningradskaya oblast (on Baltic coast) then and especially later. Never tried sardines except blanched ones, but the sprauts aren't salty, they are just smoked in oil. The turkey is locally herded, but not popular very much, the chickens prevail.
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Mars Rover Perseverance Discussion Thread
kerbiloid replied to cubinator's topic in Science & Spaceflight
"Organic": "any carbon molecule but several too common". -
Fried/baked chicken with potatoes. Olivier salad. Crab sticks salad with canned corn. Smoked sausages and meat/lard/bacon. Sliced tomatoes/cucumbers. Aspic (chicken or pig) Canned smoked sprats. Fried eggplants in garlic sauce. "Herring under fur-coar" (Salted herring under thick layer of boiled beet and mayonnaise) Considered as classics, but absolutely disgusting on my taste. Probably every North-European people must have its own disgusting classic fish dish to troll others, like the surstromming or at least this tutorial-mode thing. Pickled vegetables and' mushrooms (usually farmed champignons). Alcohol: champagne, cogniac, vodka. Citruses. Miscellaneous (sliced hard cheese, caviar, etc.). Tart (Prague, Tiramisu, Napoleon, etc). Chocolate.
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[New] Space Launch System / Orion Discussion Thread
kerbiloid replied to ZooNamedGames's topic in Science & Spaceflight
It's a progress. Iirc, Lara Croft had to sprint away through a tunnel after pulling the rocket launch handle. -
totm aug 2023 What funny/interesting thing happened in your life today?
kerbiloid replied to Ultimate Steve's topic in The Lounge
On Tatooine taiga has its local specifics, -
In Caucasus languages there is an "approximate numeral" category. It looks like "some-three-four" as a single word. So, we can treat the triangles and the squares as particular cases of a "somethreefourangle" figure if take that local school of mathematics as a base. P.S. This also makes Caucasus a probable motherland of quantum mechanics, as this numeral is a superposition of its possible states.
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It's yet not a ramjet, but has chances to become. Happily, he's doing this in a desert to prevent the ramming.
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New Year (the 31 Dec → 1 Jan night) is the outstanding one since 1930s. Strange. Russia neighbors with Turkey, and its day is in America...
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Are Breathable Desert Planets Unrealistic?
kerbiloid replied to Spacescifi's topic in Science & Spaceflight
1. Where has the ocean salt gone to? Why is the sand not too oversalty to farm? 2. Where has the ocean carbon dioxide gone to? Why is the planet not a supervenus? Acids don't provide free oxygen, they provide water. Because they drop hydrogen. They are something absolutely opposite to oxygen freeing. Expectable.