ocr: GERMANY Mark The portrait on this 10-mark note is of mathematician Carl AYG/USSIAND Friedrich Gauss (1777-1855), Gauss applied mathematics to astronomy, physics, and the measurement of the earth. Amazingly, he made most of his mapr discoveries by the - 98374A0 age of17. front The sextant, shown here, is an Zotn Vark sailors optical to find instrument their used location by at Cousche sea, By using the sextant to measure the altitudeofthe sun or - a star, a navigator can deterine the ship's latitude- its position north or south of the equator. back
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