Pentru a înțelege cum studiem universul, trebuie să vorbim puțin despre lumină. Lumina este o formă de energie. Lungimea de undă ne spune energia și culoarea sa. Spectroscopia ne permite să analizăm acele culori și să determinăm temperatura, densitatea, spinul, mișcarea și compoziția chimică a unui obiect.
Consultați posterul despre sistemul solar Crash Course Astronomy aici: http://store.dftba.com/products/crashcourse-astronomy-poster
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capitole:
Introducere 00:00
Lumina este un val 0:31
Spectrul electromagnetic 1:32
Cum se face lumina? 3:19
Structura atomică 4:47
Spectroscopie 7:14
Redshift vs Blueshift 8:26
Revizuire 9:50
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PBS Digital Studios: http://youtube.com/pbsdigitalstudios
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FOTOGRAFII/VIDEOCLIPURI
lungimi de undă https://www.cursuriaz.ro/wp-content/uploads/localimages/Image6.gif [credit: Imagine the Universe! / NASA]
Observatoare pe tot spectrul https://www.cursuriaz.ro/wp-content/uploads/localimages/observatories_across_spectrum_full.jpg [credit: Imagine the Universe! / NASA]
Plită spirală roșie http://freefoodphotos.com/imagelibrary/cooking/slides/hot_electric_cooker.html [credit: freefoodphotos.com]
Nebuloasa Crabului https://www.cursuriaz.ro/wp-content/uploads/localimages/a-3ECrab_Nebula.jpg [credit: NASA, ESA, J. Hester and A. Loll (Arizona State University)]
Construirea spectografului de imagistică a telescopului spațial http://imgsrc.hubblesite.org/hu/gallery/db/spacecraft/18/formats/18_print.jpg [credit: NASA]
VST imaginează Nebuloasa Lagunei https://www.cursuriaz.ro/wp-content/uploads/localimages/a-3EVST_images_the_Lagoon_Nebula.jpg [credit: ESO/VPHAS+ team]
Jupiter https://www.cursuriaz.ro/wp-content/uploads/localimages/414987main_pia09339.jpg [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Venus https://www.cursuriaz.ro/wp-content/uploads/localimages/a-3EVenuspioneeruv.jpg [credit: NASA – NSSDC Photo Gallery Venus]
Ring Around SN 1987a, imaginea 1 http://www.spacetelescope.org/images/opo9714e/ [credit: Jason Pun (NOAO) and SINS Collaboration]
Ring Around SN 1987a, imaginea 2 http://www.spacetelescope.org/images/opo9714a/ [credit: George Sonneborn (GSFC) and NASA/ESA]
Cursuri interesante:
- Telescoape: Crash Course Astronomy #6
- Observații cu ochiul liber: Astronomie de curs accidental #2
- Fazele Lunii: curs accidental Astronomie #4
- Stele cu masă scăzută: Astronomie de curs accidental #29
- Introducere în astronomie: curs accidental de astronomie #1
- Lunii lui Jupiter: Astronomie de curs accidental #17
- Stars: Crash Course Astronomy #26
- Mercur: Crash Course Astronomie #13
- Marte: Crash Course Astronomy #15
- Jupiter: Crash Course Astronomy #16
Great video! So much explained in a short time! I loved your stairway analogy of Energy levels.
The staircase analogy for me wasn't helpful at all.
I feel like there was too much going on at a very fast pace also.
It is amazing that over 99% of our atmosphere emits and absorbs no infrared heat. Yet it has a temperature.
New Host, I like him. I hope Mr. Green is feeling better.
i only wanted to know wat is RGB channels in photoshop xD
Awesome video. Thank you.❤
Thanks Crash Course! My middle school child has learned so much from this. Without this she wouldn’t have been able to learn as fast as she did!
Awesome video
that mean sun emmit light becouse to reduce its energy
Very good Explanation..in detail..Thank you sir