• úvod
  • témata
  • události
  • tržiště
  • diskuze
  • nástěnka
  • přihlásit
    registrace
    ztracené heslo?
    DRAGONFotografie z vesmíru a kosmonautiky +videa
    ATOMIKS
    ATOMIKS --- ---
    In clear Madras, Oregon skies, this colorful eclipse composite captured the elusive chromospheric or flash spectrum of the Sun. Only three exposures, made on August 21 with telephoto lens and diffraction grating, are aligned in the frame. Directly imaged at the far left, the Sun's diamond ring-like appearance at the beginning and end of totality brackets a silhouette of the lunar disk at maximum eclipse. Spread by the diffraction grating into the spectrum of colors toward the right, the Sun's photospheric spectrum traces the two continuous streaks. They correspond to the diamond ring glimpses of the Sun's normally overwhelming disk. But individual eclipse images also appear at each wavelength of light emitted by atoms along the thin, fleeting arcs of the solar chromosphere. The brightest images, or strongest chromospheric emission, are due to Hydrogen atoms. Red hydrogen alpha emission is at the far right with blue and purple hydrogen series emission to the left. In between, the brightest yellow emission is caused by atoms of Helium, an element only first discovered in the flash spectrum of the Sun.

    APOD: 2017 September 7 - The Flash Spectrum of the Sun
    https://apod.nasa.gov/apod/ap170907.html
    BLACKHEAD
    BLACKHEAD --- ---
    Jsem tady v GIFech narazil na tohle (starsi animace):


    To vypada, jako kdyby ten sesti uhelnik vznikal nejakou excentrickou rotaci marialu pod povrchem... Kdyz se clovek podiva na to, jak "excentricky" se ty boure uvnitr sestiuhelniku pohybujou... :-o
    DRAGON
    DRAGON --- ---
    ARCHIMEDES: wha, dik, poslu to dal :)
    QWWERTY
    QWWERTY --- ---
    ARCHIMEDES
    ARCHIMEDES --- ---
    DRAGON: Jestli myslíš tohle, tak je to na 90% Drückmüllerem zprocesovaná fotka v normálním viditelném a navíc ne letošní. Ten reddiťák pěkně mlží.
    S0DA
    S0DA --- ---

    DRAGON
    DRAGON --- ---
    DRAGON
    DRAGON --- ---
    umbra

    DRAGON
    DRAGON --- ---
    THERIDANE: to si nemyslim, protoze oni na ten jev necekali a neumeli ho predpovidat, proste se najednou stal a podivali se nahoru,, zrovna kdyz bylo v eklipse, z toho te oci moc nebolej. spis to myslel zhruba tak jako v příběhu Apocalypto
    THERIDANE
    THERIDANE --- ---
    DRAGON: tehdy asi i pomohlo to, že po takovým jevu statisticky významná část diváků trpěla několikadenní bolestí očí a hlavy...
    DRAGON
    DRAGON --- ---
    DRAGON
    DRAGON --- ---
    stejne to je krasnej astro jev, chapu, proc z toho davny civilizace byli uplne mimo, i dnes je to fenomenalni :)

    QWWERTY
    QWWERTY --- ---
    SALVATOR
    SALVATOR --- ---
    Jen tak mimochodem...

    PAN_X
    PAN_X --- ---
    PAN_X: aha tak zas takovy amateri to nejsou...
    Rocket stage separation seen from the outside for the first time ever
    https://www.youtube.com/watch?v=v184lSB2LHI
    PAN_X
    PAN_X --- ---
    EXCITE: gopro awards - raketovy "amateri"

    GoPro Awards: On a Rocket Launch to Space
    https://www.youtube.com/watch?v=bDoh8zQDT38
    EXCITE
    EXCITE --- ---
    DRAGON: Co to je?
    DRAGON
    DRAGON --- ---
    ARAON
    ARAON --- ---
    Juno peers below Jupiter's clouds - BBC News
    http://www.bbc.com/news/science-environment-40053527
    Kliknutím sem můžete změnit nastavení reklam