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Top new questions this week:

When were equivalence classes formalized?

Neither wikipedia or the first few pages of Google are showing me much about the history of the development of equivalence classes. When was this notion first formalized? Footnote: I originally asked ...

mathematics definition  
asked by Galen 2 votes
answered by Conifold 3 votes

What kind of mathematics had Max Ernst in mind?

Max Ernst was a painter belonging to the Dadaistic movement. One of his paintings shows Euclid in a somewhat, well, let's say Dadaistic fashion (although fashion and Dadaism don't go along well). We ...

mathematics art  
asked by Deschele Schilder 2 votes

What is the largest academic genealogy tree that we know of?

Many famous scientists are connected by their doctorate advisor-student relations. I wonder if we know which is the largest continuous chain of famous researchers. I have checked pages like ...

biographical-details academia  
asked by Mauricio 2 votes

Why didn't the phase space formulation of Quantum Mechanics get the upper hand?

At university I learned quantum mechanics in or position or momentum variables. Later (in fact on this site), I learned about the phase space formulation in which both are used at the same time. The ...

physics quantum-mechanics  
asked by Deschele Schilder 1 vote
answered by Cosmas Zachos 8 votes

What were Gregor Mendel's and Darwin's views on evolution?

Mendel's laws (like the laws of segregation or inheritance) became known to a wider publis decades after he discovered these laws. He assumed trait particles in operation that were responible for his ...

biology evolution darwin  
asked by Deschele Schilder 1 vote

Where there scientists before Einstein who viewed space(time) as being elastic?

Einstein was the first who saw spacetime as a mallable substance to be malled with mass. As far as I know there were no people who suggested such a view of spacetime before him. But I could be wrong. ...

physics einstein  
asked by Deschele Schilder 1 vote

Help understanding Egyptian circle

I was reading this Wikipedia page searching for the Egyptian area of circle and there is a following picture there: Trying to understand what is meant by this since it is under the "Area" ...

mathematics geometry ancient-egypt  
asked by Michael Munta 1 vote

Greatest hits from previous weeks:

What are the major flaws of the “caloric” theory of heat?

I was reading about the history of thermodynamics and came across Lavoisier's idea of heat. He proposed that heat was a fluid. I am curious to know what are the major drawbacks of this theory. I know ...

asked by model_checker 6 votes
answered by Conifold 5 votes

Hypothesis testing: Fisher vs. Popper vs. Bayes

I try to make my question short. I am familiar with Popper’s philosophy as well as with statistical hypothesis testing after Fisher and Neyman-Pearson. I am not so familiar with the Bayesian approach ...

philosophy-of-science statistics  
asked by Stefan 23 votes
answered by Conifold 23 votes

What is the difference between Calculus of Newton and that of Leibniz?

Are there any differences between the study of Calculus done by Newton as compared to that done by Leibniz? If yes, please mention point by point.

mathematics biographical-details calculus newton leibniz  
asked by Sameer Shemna 38 votes
answered by kaine 25 votes

Timeline of measurements of the electron's charge

Where can I find a paper or reference that describes the timeline of measurements of the magnitude of the electron's electric charge. For context, Millikan's oil drop experiment in 1908 determined the ...

experimental-physics reference-request bias  
asked by BMS 47 votes
answered by Anonymaus 32 votes

Who discovered total internal reflection?

There is no information on wiki. Is it known to Newton? It seems that this has not been mentioned in most textbooks.

asked by John 4 votes

Irrationality of the square root of 2

We know that Pythagoreans in Ancient Greece discovered that the square root of two is an irrational number. Why was that discovery historically significant? What value was that knowledge to the ...

mathematics ancient-greece number-theory  
asked by Spectre 25 votes

How did Napier come to invent logarithms?

What was Napier's original logic, leading to his invention of logarithms? In other words, how did Napier, using the mathematics that was available at that time, derive them?

mathematics computation  
asked by AbdElWadoud 26 votes
answered by Alexandre Eremenko 30 votes
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