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  1. Prikvačeni tweet
    6. velj 2018.

    Regarding the feasibility of electric flight on batteries. The possible range is rather easy to compute. First let's compute the potential energy altitude associated with the specific energy of battery. Altitude=SpecificEnergy/EarthGravity

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  2. proslijedio/la je Tweet
    4. velj

    How bright will be when it blows up? Moon-ish brighness for 3+ months, seen during the daytime for about a year, brighter than the star now for ~2 years, naked eye visible for ~3 years. Credit: grad students Jared Goldberg and Evan Bauer using MESA. 1/

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  3. proslijedio/la je Tweet
    4. velj

    "Inte sant att tygpåsen är 20 000 gånger sämre"

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  4. proslijedio/la je Tweet
    4. velj

    Christchurch is increasingly becoming the base for electric flight in NZ. Good news. A clean and fast developing industry

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    The consensus of the world's scientists versus... some things (no one's quite sure what) on a desk 🤦🏻

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  6. proslijedio/la je Tweet
    3. velj

    And there you have it. One of the two hardest techs to convert to 100% renewables (when H2 from )-is being converted a decade early World’s first liquid H2 fuel cell cruise ship combines 3.2MW H2 with and will operate in 2023

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  7. proslijedio/la je Tweet
    3. velj

    I think one look at Tesla's stock versus Exxon's says it all

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  8. proslijedio/la je Tweet
    2. velj
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  9. proslijedio/la je Tweet
    30. sij

    Evolution Show season 2 kicks off with self driv tech & shared mobility with Anna Pernestål. We look at how self driving tech with freight & cars completely can change our economy & transport services. Next ep out next week!

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    1. velj

    🌎 5pm UTC 30th January - 5pm UTC 31st January 2020

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  11. proslijedio/la je Tweet

    Det lär bli mycket ”väder” under 2020-talet som mänskligheten aldrig tidigare upplevt. Och ännu mer under 2030-talet. Och ytterligare ännu mer under varje årtionde som går.

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  12. proslijedio/la je Tweet
    1. velj

    Solar Impulse pilot urges aviation to disrupt itself – for its own survival

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  13. 31. sij

    Yes, ! Great article by Saul Griffith in

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  14. proslijedio/la je Tweet

    The number of electrically propelled aircraft developments grew by ~30% in 2019. Explore our interactive map with all known developments here:

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  15. proslijedio/la je Tweet
    31. sij

    "If you have a viable idea that you are passionate about - just do it!" Great advice from one of our fonders for other founders. Thank you for not only naming us one of the 2019, but for ranking us number 1!

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  16. proslijedio/la je Tweet
    31. sij

    Extraordinary viewing... "They're tobacco. We're in a new world.

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  17. proslijedio/la je Tweet
    31. sij

    “I’m done with fossil fuels. They’re done,” 's says after oil giants Exxon Mobil and Chevron reported Q4 earnings this morning. “We’re in the death knell phase.”

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  18. 31. sij

    “So, what do we do now we know we are screwed?” by

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  19. proslijedio/la je Tweet
    28. sij

    I morgon väntas regeringens utredning föreslå en statlig mångmiljardsatsning för att suga koldioxid ur atmosfären. I Värtan puttrar pilotanläggningen. Och i Norge provborras lagret för en framtida storsatsning. Välkomna till minusutsläppens tid.

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  20. proslijedio/la je Tweet
    24. sij

    Bra. Sverige har med sin långa erfarenhet av goda möjligheter att gå före när det gäller elflyg. Inte bara bra för att kunna förflytta sig i landet, utan utmärkt för industri och jobb

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  21. proslijedio/la je Tweet
    24. sij
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