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Entangled Sisters

Vayeitzei The story of entangled siblings is continuing in this parshah (Torah portion Genesis XXVIII, 10–XXXII, 3.)  Structurally, it is very similar to the story of the previous parshah, Toldot (see Entangled Twins).  In this parshah, we again read about two entangled siblings – although, this time, sisters – about deception and symmetry breaking. Two sisters are Rachel and Leah.  As sisters, they are entangled.  They are somewhat opposite – one is introvert, the other is extravert; one is beautiful, the other has week eyes.  Rachel and Leah are earthly embodiments of spiritual partzufim (configurations of sefirot – Divine emanations).  Kabbalah teaches that in spiritual realms, there is Partzuf Rachel and Partzuf Leah, which are two aspects of the Nukvah – the feminine aspect of Godliness.  Partzuf Rachel represents the revealed aspect of [...]

By | November 8th, 2013|Entanglement, Parshah, Symmetry, Vayetze|0 Comments

The Entangled Twins

Entanglement is often called the most baffling and the most quintessential aspect of quantum mechanics. What is entanglement, in a nutshell? Two particles born out of one reaction (or two particles that interacted through a collision) remain connected, no matter how distant from each other. A change in the status of one particle instantaneously causes a change in the status in the other particle. Einstein called it "spooky action at a distance." Entanglement is often associated with certain symmetry and corresponding laws of conservation. For example, the law of conservation of angular momentum requires that the spin (the quantum-mechanical analog of the angular momentum) of two entangled particles always point in the opposite directions. This means that, if two entangled particles have their spin in a state of superposition of Up (↑) and Down (↓) and we collapse [...]

By | November 3rd, 2013|Entanglement, Purim, Symmetry, Toledot, Uncategorized|0 Comments

Maarat HaMachpelah – Double Cave

Chayei Sarah Give me the Machpelah (double) Cave — וְיִתֶּן לִי אֶת מְעָרַת הַמַּכְפֵּלָה Bereshit-Genesis 23:9 The first legal acquisition of land in Israel takes place when Abraham purchases a double cave – Maarat HaMachpelah – in the city of Chevron (Hebron) as an ancestral burial plot. Rashi explains that the cave was called Machpelah (i.e., double) because it had two structures – an upper chamber and a lower chamber. (Another explanation given in the Talmud relates the name of this cave to four couples buried there – Adam and Chavah (Eve), Avraham (Abraham) and Sarah (Sara), Yitzchak (Isaac) and Rivkah (Rebecca), and Yaakov (Jacob) and Leah.) A Medrash explains that the reason this cave had two chambers – the upper and the lower – is because it reflected the structure of Gan Eiden (Paradise — the Garden of Eden), [...]

Jacob’s Ladder

Then he had a vision in a dream. A ladder was standing on the ground, and its top reached the heavens. Upon it, G‑d’s angels were going up and down. Last Friday night I dreamed of an atom with a ladder wedged in the nucleus of the atom, with electrons jumping up and down the ladder. For those readers unencumbered by the knowledge of atomic theory, a brief historical introduction may be in order.  When the planetary theory of the atom was first proposed by Ernest Rutherford in 1909, it depicted an atom as a solar system wherein a nucleus is positioned at the center of the atom, with electrons orbiting around the nucleus as planets orbit the Sun.  However, there was a problem.  According to Maxwell’s theory of electromagnetism, accelerating electrons emit [...]

By | November 29th, 2012|Atomic Theory, Parshah, Vayetze|0 Comments