Questions tagged [archimedes]

Archimedes of Syracuse was a Greek mathematician, physicist, engineer, inventor, and astronomer.

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Archimedes on hornangles?

Did Archimedes ever discuss hornangles? A hornangle (also known as angle of contingence, etc.) is the "crevice" between the circle and its tangent line at a point (from the modern viewpoint, ...
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Did Archimedes know Archimedes' recurrence formula?

Archimedes used polygons inscribed and circumscribed to the circle to approximate pi in his "Measurement of a Circle". However, I think Archimedes' recurrence formula is not used there. Did ...
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Archimedes' lever and the concept of work

Do I understand correctly that Archimedes was not familiar with the concept of work and hence attributed mechanical advantage to a lever's ability to create force rather than understanding that the ...
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Did Archimedes or anyone else prior to Galileo think that heavier things did not fall faster?

I think I saw a high school science film in which Galileo is eating with nobility or something and the scientist amazes a young woman by simply dropping an orange and a grape, saying, if heavier ...
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What does this quote by Paul Halmos mean?

I came across the following quote by the famous mathematician Paul Halmos: A clever graduate student could teach Fourier something new, but surely no one claims that he could teach Archimedes to ...
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Did Newton discuss and/or use the principle of moments?

This question comes from a point of view of a student in current times. The general curriculum for a physics student presents that a static analysis of a simple system requires that the forces in each ...
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Archimedes - method of mechanical theorems - centroid of hemisphere

Hoping a philomath can help - I'm searching how Archimedes calculates the centroid of a hemisphere without calculus as behind the below sentence in the wikipedia entry on "the Method of ...
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Did Archimedes view fractions as "numbers"?

For quite some time I had the wrong impression that classical Greek mathematicians didn't use fractions. (I don't remember where I had this from.) But I recently looked into Heath's book about ...
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I want to know the source of why Archimedes' broken chord theorem is Archimedes good

I found "The Arabian scholar Abu'l Raihan al'biruni" has attributed to Archimedes the theorem of the broken chord in web. But I couldn't find a book or papers that this Arabian scholar wrote.
Moonlight Satie esatie's user avatar
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How was the sum of squares formula discovered by Archimedes?

AFAIK, Archimedes is credited with discovering the following formula for computing the sum of squares: $$1^2 + 2^2 + 3^2 + \cdots + n^2 = \frac{n(n+1)(2n+1)}{6}$$ This seems to have come up in his ...
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How did Archimedes arrive at his principle in his time?

Archimedes principle: Any object, wholly or partially immersed in a stationary fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. I get that this can be ...
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Looking for an online version of Archimedes' "The Method" (in Greek)

To me, one of the most exciting mathematical achievements of antiquity is Archimedes' The Method. It is crazy to think that, had it not been for its miraculous recovery in the early 20th century, it ...
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Did Archimedes make use of a Pappus chain according to the Book of Lemmas?

My question is only about a certain hystorical gem. The purpose of this question is to explore how vast were Archimedes's contributions to geometry that are not connected to calculus (i.e calculation ...
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How did Archimedes's water clock work?

I read that several principles of Al-Jazari's monumental water clocks were based upon earlier designs of water clocks by Archimedes, for example the use of valves, feedback system and flow control ...
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What were Archimedes's improvements to the screw pump?

In order to understand my motivation to answer this question, I'll remark that Vitruvius said that the screw was inclined by the small angle of a 3:4:5 triangle. So it means that perhaps there was ...
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What are Archimedes's contributions to the principle of the screw pump?

I read that the famous screw pumps were used before Archimedes (in the hanging gardens of Babylon for example), and that the Archimedean screw is named after him because he "developed a rigorous ...
user2554's user avatar
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Did Archimedes know about Callipus?

Various sources, such as Cicero's Republic state that Archimedes had made a machine consisting of glass spheres that represented the Eudoxian system of the world. Considering that Callipus died over ...
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How did Archimedes complete this impossible task? [closed]

I am reading this book on Archimedes, famous mathematician of his days and now, and it was found that he caculated the amount of sand in the known Universe at his days, which is from Mercury to ...
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What is so mysterious about Archimedes' approximation of $\sqrt 3$?

In his famous estimation of $\pi$ by inscribed and circumscribed polygons, Archimedes uses several rational approximations of irrational values; a typical example is that he states, without ...
Mark Dominus's user avatar
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About Archimedes methods in the discovered palimpsest

I think Archimedes had some great non-infinitesimal methods for discovering the area and volume of shapes. Some very visual methods involving his method of exhaustion for the volume of a sphere for ...
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Did Archimedes use epicycles in his planetarium?

Archimedes constructed a planetarium where as described by Cicero "he had thought out a way to represent accurately by a single device for turning the globe those various and divergent movements with ...
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