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8.00" x 6.00"
Overall:
10.00" x 8.00"
William Barlow's Compass Of Variation Poster
by Science Photo Library
Product Details
William Barlow's Compass Of Variation poster by Science Photo Library. Our posters are produced on acid-free papers using archival inks to guarantee that they last a lifetime without fading or loss of color. All posters include a 1" white border around the image to allow for future framing and matting, if desired.
Design Details
16th century compass. Illustration of a magnetic compass of variation designed by Archdeacon William Barlow in 1597, an improvement on previous... more
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Artist's Description
16th century compass. Illustration of a magnetic compass of variation designed by Archdeacon William Barlow in 1597, an improvement on previous marine compasses. The face of the compass was pivoted on gimbals to ensure that it remains horizontal so as to reduce errors as the ship moves. Barlow's compass allowed true north to be calculated from the indication of magnetic north if the variation was known. Variation is the angle between magnetic north and geographical (true) north, as they are in different locations. The magnitude of the variation depends upon the observer's geographical location.
About Science Photo Library
Science Photo Library (SPL) is the leading source of science images and footage. Sourced from scientific and medical experts, acclaimed photographers and renowned institutions, our content is unrivaled worldwide. Outstanding quality, accuracy and commitment to excellence are deeply embedded in our DNA. Science Photo Library inspires creative professionals and delivers engaging content of the highest quality for a wide range of clients in a variety of sectors. Visit sciencephoto.com for more information and stay connected on Twitter, LinkedIn, Instagram and Vimeo.
$44.56
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