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Nadica Stojanović

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420. kishore c.k 2
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422. Nadica Stojanović 2
423. Ivanka Kujundzic Orlovic 2
424. Slinky Li 2
last 3 solved tasks
How many blocks are there?
Find the area of the blue shaded region. Express result to the accuracy of 3 decimal.

Arthur von Auwers

Died 24 Jan 1915 at age 76 (born 12 Sep 1838).Georg Friedrich Julius Arthur von Auwers was a German astronomer known for his life's work making extremely accurate catalogs of stellar positions and motions. He also researched solar and stellar parallaxes, making a new reduction of James Bradley's 18th century Greenwich observations and measurements of star distances. Auwers also observed double stars, and accurately calculated the orbits of the Sirius and Procyon systems before the faint companions to the bright stars were seen. He redetermined the distance to the sun several times, making use of transits of Venus and an approach of a minor planet.

Which book has helped...

Teacher: "Which book has helped you the most in your life?"
Student: "My father's check book!"
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