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Global or Local?

And let them make me a Sanctuary that I may dwell among them (Ex. 25:8) In modern physics, there are two paradigms usually expressed as locality and nonlocality.  Theoretical physics was born when Isaac Newton published his Philosophiæ Naturalis Principia Mathematica in 1687, where he formulated his laws of motion and the universal law of gravity.  The law of gravity says that two masses attract each other proportionally to the product of their masses and inversely proportionally to the square of the distance between them. This law said nothing about the nature of the gravitational interaction, it did not explain the mechanism of this attraction at a distance.   Newton was bothered by the question of how one body can act on another body far removed from it with nothing in between, i.e., the notion of “action [...]

Cosmological Rosh HaShanah

This Rosh HaShanah I had the strangest dream. I dreamed that I was giving a lecture in cosmology at a university when I suddenly realized that it was Rosh HaShanah. I panicked… What was I doing at the university on such a day instead of being in my synagogue, praying and listening to sounds of a shofar?! I decided to save the day by trying to weave the three main themes of Rosh HaShanah into my lecture on cosmology. And so I began… NASA/WMAP Science Team - Original version: NASA; modified by Cherkash In the Rosh HaShanah liturgy, we refer to this day as yom harat olam – the birthday of the world (Machzor Rosh HaShanah). According to modern cosmology, the world was born in an unfathomable explosion called the Big [...]

Four Camps at Sea – Four Fundamental Interactions

  On the penultimate day of the Passover Holidays (which is called Shvii shel Pesach – the Sevenths Day of Passover), we read in the Torah about Kriat Yam Suf – splitting of the sea.  The Talmud (Yerushalmi Pesachim) and Midrash (Pirka deRabeinu Hakadosh) tells us that at that dramatic moment, when the Jews, who just escaped Egypt, were trapped between the sea and the Egyptian army pursuing them, the Jews were divided into four camps (so many Jews and only four opinions?!), each advocating a different course of action: one group proposed to wage a war with Egyptians; the other group wanted to jump into the sea; the third group advocated prayer and the fourth insisted on returning to Egypt. "The Crossing of the Red Sea", Nicholas Poussin Classical commentators [...]

By |2020-10-15T23:11:13-04:00April 7th, 2013|Atomic Theory, Uncategorized|0 Comments

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