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Maskelyne's formulae for finding the longitude and latitude of a celestial object from its right ascension and declination
In pencil lower left
President Abraham Lincoln is portrayed offering all the accoutrements of war to a black American in the hope that gratitude would drive former slaves to fight for the Northern states
Former Beatles drummer Ringo Starr pictured in his office at the Apple Corporation
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Women Crossing Bridge nuclear physics Maskelyne's formulae for finding the
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