Klik hier om het gastenboek te tekenen 321 April 16, 2025 - 10:45 PM Darnelllam   Space, time: The continual question If time moves differently on the peaks of mountains than the shores of the ocean, you can imagine that things get even more bizarre the farther away from Earth you travel. <a href=https://kra30c.cc>kraken тор</a> To add more complication: Time also passes slower the faster a person or spacecraft is moving, according to Einstein’s theory of special relativity. Astronauts on the International Space Station, for example, are lucky, said Dr. Bijunath Patla, a theoretical physicist with the US National Institute of Standards and Technology, in a phone interview. Though the space station orbits about 200 miles (322 kilometers) above Earth’s surface, it also travels at high speeds — looping the planet 16 times per day — so the effects of relativity somewhat cancel each other out, Patla said. For that reason, astronauts on the orbiting laboratory can easily use Earth time to stay on schedule. https://kra30c.cc Кракен даркнет For other missions — it’s not so simple. Fortunately, scientists already have decades of experience contending with the complexities. Spacecraft, for example, are equipped with their own clocks called oscillators, Gramling said. “They maintain their own time,â€� Gramling said. “And most of our operations for spacecraft — even spacecraft that are all the way out at Pluto, or the Kuiper Belt, like New Horizons — (rely on) ground stations that are back on Earth. So everything they’re doing has to correlate with UTC.â€� But those spacecraft also rely on their own kept time, Gramling said. Vehicles exploring deep into the solar system, for example, have to know — based on their own time scale — when they are approaching a planet in case the spacecraft needs to use that planetary body for navigational purposes, she added. For 50 years, scientists have also been able to observe atomic clocks that are tucked aboard GPS satellites, which orbit Ear... 322 April 16, 2025 - 10:41 PM JamesSog   перейдите на Ñ�тот Ñ�айт https://xn-----6kcacs9ajdmhcwdcbwwcnbgd13a.xn--p1ai/prajs-list 323 April 16, 2025 - 10:31 PM Alonzoaxove   Lunar clockwork What scientists know for certain is that they need to get precision timekeeping instruments to the moon. <a href=https://kra30c.cc>Кракен тор</a> Exactly who pays for lunar clocks, which type of clocks will go, and where they’ll be positioned are all questions that remain up in the air, Gramling said. “We have to work all of this out,â€� she said. “I don’t think we know yet. I think it will be an amalgamation of several different things.â€� https://kra30c.cc Площадка кракен Atomic clocks, Gramling noted, are great for long-term stability, and crystal oscillators have an advantage for short-term stability. “You never trust one clock,â€� Gramling added. “And you never trust two clocks.â€� Clocks of various types could be placed inside satellites that orbit the moon or perhaps at the precise locations on the lunar surface that astronauts will one day visit. As for price, an atomic clock worthy of space travel could cost around a few million dollars, according Gramling, with crystal oscillators coming in substantially cheaper. But, Patla said, you get what you pay for. “The very cheap oscillators may be off by milliseconds or even 10s of milliseconds,â€� he added. “And that is important because for navigation purposes — we need to have the clocks synchronized to 10s of nanoseconds.â€� A network of clocks on the moon could work in concert to inform the new lunar time scale, just as atomic clocks do for UTC on Earth. (There will not, Gramling added, be different time zones on the moon. “There have been conversations about creating different zones, with the answer: ‘No,’â€� she said. “But that could change in the future.â€�) 324 April 16, 2025 - 10:29 PM Smoople   https://winsystem.xyz/ 325 April 16, 2025 - 10:07 PM DonaldOdoWn   SteamGuard mobile authenticator authorization codes directly in your browser! Now you do not need to reach for your phone whenever Steam requests authorization <a href="https://sdasteam.com/">https://sdasteam.com/</a> 326 April 16, 2025 - 09:59 PM WalterteIroke   Купить МДМÐ� МоÑ�ква? 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But how future astronauts living and working on the lunar surface will experience time is a different question entirely. <a href=https://kra30c.cc>kraken onion</a> On Earth, our sense of one day is governed by the fact that the planet completes one rotation every 24 hours, giving most locations a consistent cycle of daylight and darkened nights. On the moon, however, the equator receives roughly 14 days of sunlight followed by 14 days of darkness. “It’s just a very, very different conceptâ€� on the moon, Betts said. “And (NASA is) talking about landing astronauts in the very interesting south polar region (of the moon), where you have permanently lit and permanently shadowed areas. So, that’s a whole other set of confusion.â€� https://kra30c.cc Кракен даркнет “It’ll be challengingâ€� for those astronauts, Betts added. “It’s so different than Earth, and it’s just a whole different mindset.â€� That will be true no matter what time is displayed on the astronauts’ watches. 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