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Results tagged with astronomy
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user 64
The study of celestial objects and phenomena outside of the Earth's atmosphere.
6
votes
1
answer
388
views
Hevelius-Hooke dispute
Most books on the history of astronomy
(and even the Wikipedia article on Hevelius) mention a dispute between Hooke and Hevelius in which Hooke tried to convince him to use telescope. …
- 51.1k
12
votes
1
answer
526
views
Division of the circle and compass constructions
It is well known that every construction that can be performed by a compass and a ruler can be also performed by a compass only. This is a good (and difficult) exercise in elementary geometry. My ques …
- 51.1k
16
votes
1
answer
1k
views
Why did 18th century writers think that Mars had 2 satellites?
At least two 18th century writers wrote that Mars has two satellites: Swift in Gulliver's travels (1726) and Voltaire in Micromégas (1752).
How did they guess this? Was Voltaire repeating Swift's pre …
- 51.1k