Leonhard Euler + Leonid Elenin = LEO (in the sky) ELE (extinction level event)?

Leonhard Euler + Leonid Elenin = LEO(in the sky) ELE(extinction level event)?

Elenin is currently in the LEO constellation….

Leonhard Euler (1707-1783) did important work in number theory, proving that that the divergence of the harmonic series implied an infinite number of Primes, factoring the fifth Fermat number (thus disproving Fermat’s conjecture), proving Fermat’s lesser theorem, and showing that e was irrational. In 1772, he introduced a synodic coordinates (rotating) coordinate system to the study of the three-body problem (especially the Moon ). Had Euler pursued the matter, he would have discovered the constant of motion later found in a different form by Jacobi and known as the Jacobi integral.

Three-Body Problem: The problem of computing the mutual gravitational interaction of three masses. This problem is surprisingly difficult to solve, even in the so called restricted three-body problem, corresponding to the simple case of the three masses moving in a common plane.

SOURCE: http://scienceworld.wolfram.com/biography/Euler.html
Sixth banknote series, 1976

At the end of the sixties, the Swiss National Bank completely reassessed its policy regarding the design and production of notes. For the first time, the SNB took over sole leadership of planning, organisation and implementation in cooperation with graphic artists, printers, producers of paper, print and equipment.

The basic creative idea upon which the banknote series was based, i.e. the selection of topics and the graphic design, was changed as well. Six banknotes were thus created whose front is dominated by the portrait of a historic personality. The topic on the corresponding back side is always closely related to the personality depicted on the front. (Recommended reading: The Swiss banknote 1907–1997, Michel de Rivaz, COLLECTION LA MEMOIRE DE L’OEIL, ISBN 2-88100-080-0)

Portrait front: Leonhard Euler
1707 – 1783: Mathematician
Motif back: Water turbine, the solar system and a scheme of propagation of rays of light passing through lenses
Prevailing colour: reddish brown


Moon phases occur with a period of 29.530587 days (the “synodic period”),

The exact value is 29.530589 days, or 29 days, 12 hours, 44 minutes, 3 seconds. However, there is a great deal of variation in the actual time for a given lunation (the time between two successive new moons).

Euler was featured on the sixth series of the Swiss 10-franc banknote and on numerous Swiss, German, and Russian postage stamps. The asteroid 2002 Euler was named in his honor. He is also commemorated by the Lutheran Church on their Calendar of Saints on 24 May – he was a devout Christian (and believer in biblical inerrancy) who wrote apologetics and argued forcefully against the prominent atheists of his time….

via Blue Sky Sunshine’s Blog » Leonhard Euler + Leonid Elenin = LEO(in the sky) ELE(extinction level event)?.

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