karlh

@karlh70974537

Palimpsest (ghost craters), like impact craters age

Vrijeme pridruživanja: prosinac 2019.
7 fotografija ili videozapisa Fotografije i videozapisi

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  1. 3. velj

    Butterfly

    0:11
    On display at the 2019 Cornel Cup was a UAV with a very unique design. It has the familiar layout of a quadcopter, but all four spinning blades have been replaced with flapping wings
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  2. proslijedio/la je Tweet
    2. velj

    This moving square illusion is a consequence of the so called 'motion binding' perceptual mechanism

    5 replies 80 proslijeđenih tweetova 272 korisnika označavaju da im se sviđa
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  3. proslijedio/la je Tweet
    2. velj

    Cut a paper circle, fold it so that the circumference falls on a fixed point. Repeat. This is how you paper-fold an ellipse [source: ]

    5 replies 88 proslijeđenih tweetova 398 korisnika označava da im se sviđa
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  4. proslijedio/la je Tweet
    14. pro 2019.

    Watch this cutie copy his pictures😍

    20 replies 93 proslijeđena tweeta 370 korisnika označava da im se sviđa
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  5. 2. velj

    02020

    Palindrome dates have always been depending on how you write them, but not . February 2, 2020 is unique because is palindrome no matter how you express the date. The previous was 11/11/1111 [gif by Martin Shervington: ]
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  6. proslijedio/la je Tweet
    1. velj

    This is a window cage which was normal in 1930s apartments to make sure children got enough sunlight and air. They were invented in 1922 but some reports say they began even earlier in 1884 with the book ‘The care and feeding of children’ by Dr Luther Emmet

    63 proslijeđena tweeta 244 korisnika označavaju da im se sviđa
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    27. sij

    Watch to the end!

    0:57
    The domino effect with paving stones.
    1 reply 3 proslijeđena tweeta 8 korisnika označava da im se sviđa
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    25. sij

    Zur Zeit gibt es in der Jungfrau zwei Supernovae zu sehen: Einmal in der Galaxie NGC 4636 etwas außerhalb des Kerns und einmal im Kern von M 100 (und dadurch schwerer zu beobachten). Die hier gezeigten Bilder stammen von Klaus Wenzel und wurden am 20. Januar 2020 aufgenommen

    28 proslijeđenih tweetova 38 korisnika označava da im se sviđa
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    25. sij

    Analysis of the rocks from the Apollo missions gave rise to a set of ideas describing the origin of the Moon called the Giant Impact Theory. Robin Canup has been testing a number of predictions of this theory using a new generation of supercomputers

    30 proslijeđenih tweetova 114 korisnika označava da im se sviđa
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    23. sij

    Kintail fireball from Jan 22 as captured early in flight by accident on most sensitive meteor cameras which use EMCCDs from . FOV is roughly 15x15 degrees and faintest visible stars are near +12.

    8 replies 144 proslijeđena tweeta 415 korisnika označava da im se sviđa
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  11. 24. sij

    That is nature

    0:09
    After the devastating bushfires Australia is coming back to life...
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    23. sij

    Yet another capture of the Kintail fireball, this time with an experimental meteor camera system near Tavistock, ON based on

    36 proslijeđenih tweetova 95 korisnika označava da im se sviđa
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    26. pro 2019.

    This Is How We'd All Die Instantly If The Sun Suddenly Went Supernova It wouldn't be the blast wave. It wouldn't be the light. Instead, the neutrinos would destroy every living thing on Earth over a timescale of about 1/20th of a second.

    47 replies 155 proslijeđenih tweetova 453 korisnika označavaju da im se sviđa
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    20. sij

    "Mathematics is the language in which God has written the universe." -- Galileo Galilei (1564 - 1642) 🧠

    86 replies 2.162 proslijeđena tweeta 7.813 korisnika označava da im se sviđa
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    19. sij

    Watch live as SpaceX tests Crew Dragon’s in-flight launch escape capabilities

    561 reply 7.225 proslijeđenih tweetova 22.110 korisnika označava da im se sviđa
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  16. proslijedio/la je Tweet
    19. sij

    New T-0 of 10:00 a.m. EST to optimize for decreasing winds in the recovery area

    904 proslijeđena tweeta 6.392 korisnika označavaju da im se sviđa
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  17. proslijedio/la je Tweet
    18. sij

    What do I advise? Forget it all. Don't be afraid. Do what you get the most pleasure from. Develop your talents wherever they may lead! If you have any talent, or any occupation that delights you, do it, and do it to the hilt!

    17 replies 847 proslijeđenih tweetova 2.862 korisnika označavaju da im se sviđa
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  18. proslijedio/la je Tweet
    19. sij

    • Read everyday. • Spend time with nature. • Ask questions. • Never stop learning. • Don't pay attention to what others think of you. • Do what interests you the most. • Study hard. • Teach others what you know. • Make mistakes and learn. • It's Okay to not know things!

    70 replies 5.375 proslijeđenih tweetova 13.960 korisnika označava da im se sviđa
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  19. 19. sij

    Start um 15:00 Uhr MEZ

    0:15
    Targeting T-0 of 9:00 a.m. EST. Teams are continuing to monitor weather; Falcon 9 and Dragon remain healthy for today's test
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  20. proslijedio/la je Tweet
    17. sij

    on Jan 15, 2020, imaged with a blur filter. (Alfa Orionis) appears slightly brighter than Bellatrix, at 1,5mag, just like end of december. It was almost as bright as Rigel last year!

    1 reply 6 proslijeđenih tweetova 15 korisnika označava da im se sviđa
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