Astronomy J
Astronomy, science and stuff.
Astronomy J
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How the sky would look if the planets were as close as the moon
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Oh Bill…
Oh Bill…
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ultrafacts:

musicmanonsax:

ultrafacts:

Source



Click HERE to follow Ultrafacts




WHY?????

One of the reasons why they are so expensive is because they are expensive to make & textbook publishers aren’t making as much money in the 2nd and 3rd year of a book’s lifetime, so instead they need to make all their profits within the 1st year of a new edition. This means that they need to jack up the list price of new books to make a lot of $.

…Because of this, many students aren’t really spending much money on new textbooks & if they have to, it can be hard on their wallets. (Some books go up to $500+)
If college tuition fees weren’t enough…

So? What is this forcing students to do? They are getting used, rentals, ebooks. & even:

(Source)
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lifehackable:

Let’s all help college students get knowledge they deserve for free:)
http://gen.lib.rus.ec
http://textbooknova.com
http://en.bookfi.org/
http://www.gutenberg.org
http://ebookee.org
http://www.manybooks.net
http://www.giuciao.com
http://www.feedurbrain.com
http://oll.libertyfund.org/index.php?option=com_content&task=view&id=380
http://www.alleng.ru/ 
http://www.eknigu.com/ 
http://ishare.iask.sina.com.cn/
http://2020ok.com/
http://www.freebookspot.es/Default.aspx
http://www.freeetextbooks.com/
http://onebigtorrent.org/
http://www.downeu.me/ebook/
http://forums.mvgroup.org

http://theaudiobookbay.com/
More Here
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ageofdestruction:

juneborn: A year over the Pacific, photographed by GOES-15, 2012-2013.
24 frames, photographed at at the same time of day (0300 UTC) on the 7th and 22nd of each month from June 2012 to June 2013 (one year, solstice-to-solstice). 2nd gif rearranges the frames to keep the angle of sunlight constant.
This is the effect caused by the fixed tilt of Earth’s axis and Earth’s orbit around the Sun; you can see the periods when the poles experience day or night for months at a time - this is when the poles are tilted toward and away from the Sun, respectively. 
Image credit: NOAA/NASA, via NCDC/GIBBS. Animation: AgeOfDestruction.
ageofdestruction:

juneborn: A year over the Pacific, photographed by GOES-15, 2012-2013.
24 frames, photographed at at the same time of day (0300 UTC) on the 7th and 22nd of each month from June 2012 to June 2013 (one year, solstice-to-solstice). 2nd gif rearranges the frames to keep the angle of sunlight constant.
This is the effect caused by the fixed tilt of Earth’s axis and Earth’s orbit around the Sun; you can see the periods when the poles experience day or night for months at a time - this is when the poles are tilted toward and away from the Sun, respectively. 
Image credit: NOAA/NASA, via NCDC/GIBBS. Animation: AgeOfDestruction.
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afro-dominicano:

Three Diamonds of Solar Eclipse

by Petr Horálek
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musts:

© Andrew Curtis { website }
White River, Oregon, USA