Top new questions this week:
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Richard Bellman said :
"The 1950s were not good years for mathematical research. We had a
very interesting gentleman in Washington named Wilson. He was
Secretary of Defense, and he actually had ...
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In its most basic form the Turnstile antenna is two half-wave dipole antennas that are perpendicular and driven 90 degrees out of phase. For a recent review see Crossed Dipole Antennas: A review (also ...
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Greatest hits from previous weeks:
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Encyclopedia Britannica says,
In their modern form, vectors appeared late in the 19th century when Josiah Willard Gibbs and Oliver Heaviside (...) independently developed vector analysis to express ...
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I heard Gauss's primary school teacher gave some busy-work to his class: to add all the numbers between 1 and 100 up. Gauss immediately wrote 5050. His teacher was shocked, so she told him to add up ...
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Why is $\mathrm{kg}$ the standard unit for mass and not $\mathrm{g}$?
I know that there is the kilogramme des Archives which is a kilogram and not a gram. But originally on April 7, 1795 the gram was ...
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Who invented, or first used, the concept of the mole? I did my own research and the closest I came was Avogadro’s constant, which was made not by Avogadro but rather by Jean Baptiste Perrin. However, ...
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Apparently Dijkstra wrote in an article in Datamation1 in 1977:
It's very illuminating to think about the fact that some – at most four
hundred – years ago, professors at European universities ...
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I knew about linear approximations, quadratic approximations and the use of Taylor polynomials to approximate a function. Furthermore, I was aware of other applications of Taylor polynomials and the ...
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This might be more a question for historians, but it's a question I've given some thought to.
By using what was essentially Euclidean geometry, Aristarchus was able to calculate, with some measure ...
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