Solar compass

The solar compass, a surveying instrument that makes use of the sun's direction, was first invented and made by William Austin Burt. He patented it on February 25, 1836, in the United States Patent Office as No 9428X. It received a medal at the Great Exhibition of 1851.

单词	Solar compass
释义	Solar compass 英语百科 Solar compass The solar compass, a surveying instrument that makes use of the sun's direction, was first invented and made by William Austin Burt. He patented it on February 25, 1836, in the United States Patent Office as No 9428X. It received a medal at the Great Exhibition of 1851.
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