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Sign: Tel Aviv University - "Homage to Johann Kapler" - outdoor sculpture by Igael Tumrakin


Address:
Tel Aviv University, Tel Aviv-Yafo, Israel
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On the sign:
יגאל תומרקין
מחווה ליוהאן קפלר

Ygael Tumarkin
Homage to Johann Kapler

0492636
Photography:
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Comments:
The sculpture on which the sign is pointing was photographed that day Click for a larger image Click for a larger image

Next to the statue is another sign with more details about Kepler and the sculpture , which reads:
מחווה ליוהאנס קפלר (1630-1571)
יגאל תומרקין
יוהאנס קפלר (1630-1571) הוא מגדולי המדענים ומאבות האסטרונומיה המודרנית. בימיו היה ידוע על ששה כוכבי לכת (פלנטות) סביב השמש. קפלר האמין שמספר זה והיחס בין מרחקי הפלנטות מן השמש אינו מקרי, אלא שיקוף תכנית גיאומטרית אלוהית ליקום. חמשת המרווחים בין שש הפלנטות הוכתבו לדעתו ע"י הגיאומטריה של חמשת הגופים המשוכללים הנראים בפסל (ארבעון, קוביה, תמנון, תריסריון, עשרימון). לתיקון חוסר התאמות בין המודל לבין תצפיות שערך האסטרונום טיכו בראהה, הגה קפלר רעיון מהפכני: מסלולי הפלנטות סביב השמש ושל כל גרמי השמים אינם מעגלים מושלמים כפי שהאמינו אלא אליפסות.
ישראל שֶׁק

Homage to Johannes Kepler (1571-1630)
Yigal Tumarkin
Johannes Kepler (1571-1630), one of the greatest scientists and fathers of modern Astronomy, believed that the number of planets surrounding Sun known at that time, six, as well as their relative distances, was not a mere fact, but reflected Heavenly geometric plan of Cosmology. According to Kepler the five intervals between the six planets, were dictated by the geometry and symmetry of the five Platonic bodies (tetrahedron, cube, octahedron, dodecahedron, icosahedron) shown in the sculpture. To correct some inconsistencies between this model and previous observations made by the astronomer Tycho Brahe, Kepler devised a revolutionary correct concept of eliptical rather than circular orbits of the planets and all the astronomical bodies.
Israel Schek

[Image of Johannes Kepler]
Click for a larger image





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