Today Phil explains how telescopes work and offers up some astronomical shopping advice.
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How Telescopes Work 1:07
Refractors vs Reflectors 2:50
Technology and the Light Spectrum 7:45
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PHOTOS/VIDEOS
http://en.wikipedia.org/wiki/Galileo_Galilei#mediaviewer/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg
http://en.wikipedia.org/wiki/Human_eye#mediaviewer/File:Human_eye_with_blood_vessels.jpg
http://en.wikipedia.org/wiki/Refracting_telescope#mediaviewer/File:Refractor_Cincinnati_observatory.jpg
http://commons.wikimedia.org/wiki/File:Positive_lens_2.svg
http://www.eso.org/public/images/yb_vlt_moon_cnn_cc/
http://en.wikipedia.org/wiki/Jupiter#mediaviewer/File:Jupiter_MAD.jpg
http://en.wikipedia.org/wiki/Wide_Field_and_Planetary_Camera#mediaviewer/File:Hubble_Images_of_M100_Before_and_After_Mirror_Repair_-_GPN-2002-000064.jpg
http://commons.wikimedia.org/wiki/File:Prime_focus_telescope.svg
http://commons.wikimedia.org/wiki/File:Inspection_of_the_primary_mirror_of_the_Hubble_Space_Telescope8218871.jpg
https://www.youtube.com/watch?v=ui6ernRFxOg#t=2m22s
http://en.wikipedia.org/wiki/William_Herschel#mediaviewer/File:William_Herschel01.jpg
http://commons.wikimedia.org/wiki/File:Grand_Canyon_National_Park,_23_Annual_Star_Party_2013_-_0082_-_Flickr_-_Grand_Canyon_NPS.jpg
http://commons.wikimedia.org/wiki/File_talk:EM_spectrum.svg#mediaviewer/File:EM_spectrumrevised.png
https://www.youtube.com/watch?v=RqX9vLj3_7w#t=4m52s
http://pprc.qmul.ac.uk/~still/wordpress/?page_id=138
http://en.wikipedia.org/wiki/VERITAS#mediaviewer/File:MMT_FLWO_Amado_AZ_10359.jpg
http://en.wikipedia.org/wiki/Astrophotography#mediaviewer/File:Henry_Drape_Orion_nebula_1880_inverted.jpg
http://en.wikipedia.org/wiki/Astrophotography#mediaviewer/File:Orion-Nebula_A_A_Common.jpg
http://en.wikipedia.org/wiki/File:PIA18593-Mars-CometSidingSpring-NEOWISE-20140728.jpg
http://en.wikipedia.org/wiki/File:NASA-HS201427a-HubbleUltraDeepField2014-20140603.jpg
http://upload.wikimedia.org/wikipedia/commons/2/2b/Jupiter_and_its_shrunken_Great_Red_Spot.jpg
http://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Chromatic_aberration_3.svg/2000px-Chromatic_aberration_3.svg.png
http://upload.wikimedia.org/wikipedia/commons/5/56/The_Whirlpool_Galaxy_%28M51%29.jpg
http://hubblesite.org/newscenter/archive/releases/2005/12/image/a/
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I love the JWST on the shelf behind 🙂
Great video Crash Course! This is a great explanation of telescopes and is very helpful to students and more people who are interested.
Wish to see much more videos! 😀
The Arabic scientist Ibn Sina has investigated Gravity long before Sir Isaac Newton and Hook.
why don’t you use any real views through the telescope’s eyepiece as examples? Why do you use only paintings of
jupiter?
I’ve always loved looking up at the sky at night. Especially now that I’m learning Astronomy thanks to you guys. I now make it a habit to walk my way home so I can look up and see the stars and the moon while listening to my favorite tunes. One of the best feelings in the world.
getting my first telescope for christmas so i thought id learn a bit about astronomy. these videos are great!
really helped.. and was very useful.. thanks Crash Course
I’m from America so that car scene made me nervous XD
My telescope is actually just a pretty cheap mini pair of binoculars and that makes them sad… [weeps piteously]
Everyone, please watch my tiny nature videos. There is no talking in them. It is hard to find quiet places to record. Shhh!
“Hey Phil! Who does your hair?!”
Wow. U r so amazing. U just motivated me to visit my city’s planetarium
Great job
“Look at your eyes… well, that’s tough, so let’s think about our eyes for a moment.” this is why I love this series
Mr Telescope invented it
Nice
awesome series !!..I find this very very helpful in understanding the basics of astronomy.
Unfortunately light pollution in my area renders stargazing obsolete. On a good night there are no more than 50 visible stars. I do still keep track of the moon and the visible planets 🙂 once a year I go on a holiday to a rural part of nsw to look up at night. I love being able to see both the large and small maggelanic clouds as they orbit our galaxy
Size matters
Well, my refractor doesn’t flip the image. my reflector does.
cool
the picture of the eye looked scary
Phil plait, you’re on the science channel. How the universe works
more diagrams!
I have a science exam tumorrow. this vid saved my life
Thank you Phil Plait for such fun and informative videos. I learnt a lot of things which I did not know.
Aggressive self-marketing sometimes pays off.
I want to get a PhD in astronomy when I’m older. I want to work for NASA when I’m older. I want to get a PhD in electrical engineering and computer science. I know about Galileo galilei. please respond to this comment.
Phil, I must say that you are one of the funnest teachers I’ve heard! These episodes have been inspiring and make me excited to learn more about astronomy!
Phil, who does your hair?
Who else is watching this in 2017?
8:59 Wait, 19FPS? That’s pretty low.
Galileo discovered some moons on the planets in the solar system which he thought were satellites
Wait… you have *two* model of the James Webb Space Telescope on the shelf behind you? And with mirrors oriented differently?
boring episode!
NOW I WAS THINKING THAT NEWTON MIRROR TYPE SCOPES MADE THE IMAGE LOOK UPSIDE DOWN AND THAT REFRACTOR SCOPE MADE IT LOOK RIGHT SIDE UP
You can “look at your eyes”, by looking in a mirror. Just sayin’.
You’re a genius
if a was a teacher these series would be my lesons
Its very satisfiable to understand the sciences through your videos ….
lol
like
i love this stuff
Hi! I am going to 6th grade. I want to see the planet by a telescope. So what kind of telescope should my parents buy for me?
this channel reminds me of ted ed
Amazing work, love these videos/lessons