History of Science and Mathematics
xxavier
  • Member for 4 years, 5 months
  • Last seen this week
  • Madrid, España
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Retired. Flying a light plane and an autogyro.

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18
Examples of when the professional scientists or mathematicians were wrong, but the nonprofessionals were right
Jan 19 '19
8
How did Eratosthenes know the distance between Aswan and Alexandria?
Mar 28 '20
7
What does "in-4o" mean in this French collection from 1768?
Nov 26 '21
4
How was gravity explained in Ancient Greek and Roman times?
Nov 26 '18
3
Why are there so many German terms in the field of radiative transfer?
Aug 7 '20
3
Textbooks used by Oliver Heaviside
Aug 1 '19
2
In which units did Sir Isaac Newton define force at that time as SI system didn't existed then?
Aug 23 '21
2
Who did the drawings in Hilbert's and Cohn-Vossen's "Anschauliche Geometrie"?
Mar 3 '19
1
Level of maths of engineers in the Industrial Revolution
Dec 6 '18
0
Literary works authored by mathematicians
Oct 24 '21
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55
Is lift in fact a kind of drag?
37
Why do planes fly at a high angle of attack when flying slow?
27
What is the smallest manned aircraft with four engines?
24
What is the largest taildragger in history?
24
Would it be feasible to build a jet fighter plane based on a wooden construction?

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