For millennia, humans have been fascinated with the ghostly green and red curtains of light that shimmer across the heavens on dark, clear nights. Ancient peoples saw these displays as souls of the dead, the torches of the spirits and as harbingers of war. Barely 100 years ago, scientists finally learned that an aurora is created when the Earth's magnetic field is bombarded with charged particles from the sun. When the charged particles collide with oxygen in the atmosphere, auroras with yellows, greens and reds appear. ...
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For millennia, humans have been fascinated with the ghostly green and red curtains of light that shimmer across the heavens on dark, clear nights. Ancient peoples saw these displays as souls of the dead, the torches of the spirits and as harbingers of war. Barely 100 years ago, scientists finally learned that an aurora is created when the Earth's magnetic field is bombarded with charged particles from the sun. When the charged particles collide with oxygen in the atmosphere, auroras with yellows, greens and reds appear. Collisions with nitrogen result in bluish colors. However, our understanding of the physics behind auroras has not detracted from their wonder. Auroras is filled with 80 photographs of one of nature's greatest spectacles, complete with captions that reflect on the folklore, science and beauty of the northern lights. The book poses and answers the many scientific questions about auroras: Why are auroras usually seen only at high latitudes? How do scientists study them? What causes the different colours? Why are massive auroras often followed by blackouts and computer system crashes? Auroras is where cutting-edge science meets the stuff of dreams.
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Add this copy of Auroras: Fire in the Sky to cart. $10.16, like new condition, Sold by ThriftBooks-Dallas rated 5.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 2011 by Firefly Books.
Add this copy of Auroras: Fire in the Sky to cart. $10.16, very good condition, Sold by ThriftBooks-Atlanta rated 5.0 out of 5 stars, ships from Austell, GA, UNITED STATES, published 2011 by Firefly Books.
Add this copy of Auroras: Fire in the Sky to cart. $10.16, good condition, Sold by ThriftBooks-Atlanta rated 5.0 out of 5 stars, ships from Austell, GA, UNITED STATES, published 2011 by Firefly Books.
Add this copy of Auroras: Fire in the Sky to cart. $10.16, good condition, Sold by ThriftBooks-Baltimore rated 4.0 out of 5 stars, ships from Halethorpe, MD, UNITED STATES, published 2011 by Firefly Books.
Add this copy of Auroras: Fire in the Sky to cart. $10.88, good condition, Sold by Friends of the Phoenix Library rated 3.0 out of 5 stars, ships from Phoenix, AZ, UNITED STATES, published 2011 by Firefly Books.
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Seller's Description:
Good. This is a former library book with library stickers and stamps. 100% of this purchase will support literacy programs through a nonprofit organization!
Add this copy of Auroras: Fire in the Sky to cart. $16.87, good condition, Sold by Hay-on-Wye Booksellers rated 4.0 out of 5 stars, ships from Hereford, UNITED KINGDOM, published 2011 by Firefly Books.
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Seller's Description:
Good. Bumps/minor tears to cover edges. Scratches/marks to dustjacket, scuffs/nicks to edges & several tears to back. Content very good. Sewn binding. Cloth over boards. 144 p. Contains: Illustrations.
Add this copy of Auroras: Fire in the Sky to cart. $74.64, new condition, Sold by GridFreed rated 5.0 out of 5 stars, ships from North Las Vegas, NV, UNITED STATES, published 2011 by Firefly Books.
