History of Science and Mathematics Beta
Profile Activity
Network profile
471
reputation
2
10

xxavier

Retired. Flying a light plane and an autogyro.

7
answers
3
questions
~26k
people reached
  • Madrid, España
  • Member for 3 years, 3 months
  • 9 profile views
  • Last seen Oct 23 at 7:52

Communities (20)

Top network posts

Top tags (23)

Score 18
Posts 2
Posts % 20
Score 18
Posts 1
Score 18
Posts 1
Score 17
Posts 2
Score 6
Posts 2
Score 3
Posts 2
View all tags →

Top posts (10)

All Questions Answers
Votes Newest
18 Examples of when the professional scientists or mathematicians were wrong, but the nonprofessionals were right Jan 19 '19
4 How did Eratosthenes know the distance between Aswan and Alexandria? Mar 28
3 Textbooks used by Oliver Heaviside Aug 1 '19
3 Why are there so many German terms in the field of radiative transfer? Aug 7
3 How was gravity explained in Ancient Greek and Roman times? Nov 26 '18
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 How does Charles Babbage's Difference Engine solve his quest for automating Log Tables? Sep 20 '19
-1 What did the Soviets do with German scientists after WWII? Jul 15
-1 Is there a Martin Gardner's article archive available online? Jul 8

Badges (12)

Gold

—

Silver

2

Rarest

Bronze

10

Rarest

View all badges →