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    TOXICMANElon Musk respektive jeho firmy SpaceX (Falcon / Heavy / Dragon / Starship), Tesla, Starlink, Neuralink, Boring, xAI
    PER2
    PER2 --- ---
    YMLADRIS
    YMLADRIS --- ---
    WaitButWhy Tim Urban pise tak mile o tom, proc vzal dceru na launch

    Imagine if every commercial airplane flight ended with the passengers parachuting to the ground and the plane crashing into the ocean. With every plane flying exactly once, a brand-new plane would be needed for every flight. Tickets would cost millions of dollars, limiting air travel to billionaires and governments. ..

    In late 2015 a SpaceX rocket launched, sent its payload into orbit, and for the first time in human history, came back down and landed. I watched from SpaceX headquarters. The cheer was so deafening you could feel the vibration move through your body. In the face of a million doubts, SpaceX showed that a private company could not only launch rockets but do it better than any government ever had. Soon, the U.S. government was using SpaceX, not Russia, to launch its astronauts.

    ..

    I can say with confidence: Watching a skyscraper falling from the sky is one of the most surreal things I have ever seen. Noticing my daughter still fixated on the cloud, I redirected her attention to the falling rocket. Near the ground, with a new streak of fire shooting out of its engines, it slowly hovered its way over to the tower and into the gentle embrace of the robot arms. The crowd roared. My wife, who gives one percent as much of a shit as I do about space, was in tears.

    It’s hard to wrap your head around SpaceX’s mission. If they actually succeed in putting a single human on Mars, let alone their goal of a million people, it will be one of the major milestones in not just human history but life history—on par with the moment animals first began to walk on land. Whether or not they end up pulling it off, space is officially exciting again.

    But the reason rocket launches make people emotional isn’t about that. It’s the feeling of swelling pride that comes from being in awe of your own species. It’s the feeling of hope that comes from being reminded of our insane potential when thousands of people work together toward a goal. It’s the happy version of the post-9/11 feeling of wanting to hug every stranger you see.

    These emotions are especially refreshing at a time when we’re surrounded by their polar opposite: the pessimism and petty cynicism that pervade our age of suffocating tribalism.

    As the father to a smiley little gnome, I desperately want to shield her from the negativity that will swirl around her as she grows up. I won’t be able to do that. But what I can do is continually redirect her attention to the rocket, showing her all the ways our species is incredible. I can use “rocket launch emotion” as a parenting compass and try, as many times as I can, to give her experiences that fill her with that particular magical, high-minded feeling.

    If along the way I also train her to be my little space nerd friend, all the better.

    PES
    PES --- ---
    SEJDA: již teď jsou zóny rádiového ticha

    Green Bank, West Virginia, USA
    Parkes, New South Wales, Australia
    Arecibo, Puerto Rico (i když teleskop se zhroutil)
    Jodrell Bank, Cheshire, UK

    a našlo by se i pár dalších míst na Zemi, kde je např. zákaz používání WiFi a někde i mobilů...
    TOXICMAN
    TOXICMAN --- ---
    hot stage and booster drifting

    SEJDA
    SEJDA --- ---
    OMNIHASH: Nepodcenoval bych uvoleneni sankci.

    Ale jinak je vypinani Starlinku reseni i pro radioteleskopy. Hadam, ze i tak v okoli radoteleskopu moc zakazniku Starlinku nebude.
    TOXICMAN
    TOXICMAN --- ---
    nějaký mravenci na ramenech
    XCHAOS
    XCHAOS --- ---
    OMNIHASH
    OMNIHASH --- ---
    SEJDA: mno s těma S400 bych byl opatrnej, aby na konci války bylo vůbec co a odkud exportovat, natož aby o to měl někdo zájem.
    SEJDA
    SEJDA --- ---
    XCHAOS: vypinat Starlink neni problem (rozumnej satelity nad nejakym uzemim). Uz se to dela. Ano kazda velmoc to udela svymi satelity uplne stejne jako se to deje s jadernymi zbranemi. Jakmile skonci valka v Ukrajine, bude Rusko exportovat do sveta systemy S400. Takze Stealth bude nasaditelne, ale ne proti velmocem, resp. ne proti statum, ktere velmoci nevypinaji signal.
    XCHAOS
    XCHAOS --- ---
    SEJDA: tak copak radioastronomové jsou veřejnosti ukradení, ale vojáci se pode mě ozvou hlasitěji. Co jsem pochopil, tak to množství rádiového šumu ze Starlinků je tak velké, že to Číně umožňuje používat jako pasivní radar (detekce zastínění šumu, místo odrazu) a to znehodnocuje celou bilionovou investici do stealth letounů... je to úplně na hlavu. V případě války by USA museli Starlink v první řadě nejspíš vypnout (čímž by zase odřízli vojenské jednotky závislé na internetovém připojení v terénu).

    No, jestli nějaká změna paradigmatu byla fakt zásadní, tak tohle... a některé důsledky podle mě nenapadly nikoho. Všichni pořád Kesslerův syndrom... ale zarušení dostupných frekvencí, včetně šumu na frekvencích, kde by být neměly, je logický a předvídatelný problém.

    Zrovna ten rádiový šum je ale spíš příznakem levné, odfláknuté elektroniky a na rozdíl od té odrazivosti to snad v další generaci vyřešej (a ještě tím nejspíš sníží potřebu chlazení a spotřebu elektřiny, apod.). Otázka ale je, jestli Starlink-plagiáty vypuštěné Čínou nebudou tem šum generovat záměrně z těch vojenských důvodů... bylo by jim to podobné...
    SEJDA
    SEJDA --- ---
    DRAGON: to je to same, co si sem daval vcera. Kazdpopadne v tomto clanku je napsane, ze uz to SpaceX resi.
    Na Science najdes i odkaz na clanek o radioteleskopu z JAR:

    "The team calculated that satellite transmissions will lead to a 70% loss in sensitivity in the downlink band. If the number of satellites in megaconstellations reaches 100,000, as predicted by many, the entire band 5b would be unusable. SKA would lose its sensitivity to molecules such as the simplest amino acid, glycine, a component of proteins. "If it was detected in a planetary system that was forming, that would be a very interesting piece of information," Diamond says. "This is a new area that SKA is opening up." The band could also contain the fingerprints of water molecules in distant galaxies, a tracer that cosmologists use to study how dark energy is accelerating the expansion of the universe."

    Placnu, ze kvuli redshiftu (nevim jak velky efekt ma), toto zasahne jenom nektere zdroje, blizke. A samozrejmne 100 000 satelitu .. cerny scenar je 10 000 ne?

    https://www.science.org/content/article/worst-nightmare-elon-musk-s-starlink-satellites-could-blind-radio-telescopes
    PES
    PES --- ---
    TADEAS: však to taky T. oslavil pořádaným tancem ;-)))
    Trump místo odpovědi na otázky jen přes půl hodiny tancoval - Novinky
    https://www.novinky.cz/clanek/volby-usa-trump-misto-odpovedi-na-otazky-jen-pres-pul-hodiny-tancoval-40493196
    SATAI
    SATAI --- ---
    SATAI:

    Reports: Tesla’s prototype Optimus robots were controlled by humans - Ars Technica
    https://arstechnica.com/ai/2024/10/reports-teslas-prototype-optimus-robots-were-controlled-by-humans/
    TADEAS
    TADEAS --- ---
    Elon Musk gives $75m to pro-Trump group, putting him among the largest Republican donors | Elon Musk | The Guardian
    https://www.theguardian.com/technology/2024/oct/16/elon-musk-donald-trump-donation-america-pac
    KOUDY
    KOUDY --- ---
    Elon Musk vymyslel a prosadil, že Starship a její raketu zachytí „jídelní hůlky“. Není to jen manažer – VTM.cz
    https://vtm.zive.cz/clanky/elon-musk-vymyslel-a-prosadil-ze-starship-a-jeji-raketu-zachyti-jidelni-hulky-neni-to-jen-manazer/sc-870-a-230760/default.aspx
    TOXICMAN
    TOXICMAN --- ---
    technici vítají booster :)
    ANDELIN_GZEMI
    ANDELIN_GZEMI --- ---
    How SpaceX Will Catch Super Heavy | Explained
    https://youtu.be/ub6HdADut50?si=tSWDIQ6kKeHlEq6y
    ANDELIN_GZEMI
    ANDELIN_GZEMI --- ---
    CHAOS_RK: asi 41 cm v průměru. Takže spíš pivní sud. Celkově je celý mechanismus toho chycení skvěle zpracovaný v tomhle videu.
    Kliknutím sem můžete změnit nastavení reklam