lubavitcher rebbe

The Beard of the Long Face is Found

The previous Lubavitcher Rebbe, the Rebbe Rayatz (a.k.a. the Fridriker Rebbe) told the story about his father, the Rebbe Rashab. Once the brother of Rebbe Rashab, Rabbi Menachem Mendel (a.k.a. the RM”M) told him that he read in a magazine an article that stated that scientists found a nerve in the brain regulating the cognitive function so that when a person needed to remember something he would tilt his head looking up, whereas when the person needed to concentrate, he’d tilt his head down. The Rebbe Rashab took his brother to his study, took from the shelf a book by the Second Lubavitcher Rebbe, the Mittler Rebbe, in which it stated the same thing. The Rebbe Rashab said to his brother, “You’d think he was a doctor, but he wasn’t. He saw Adam [...]

By Alexander Poltorak|2018-11-10T23:01:55-05:00August 31st, 2018|Bereshit, Biology, Genesis, Kabbalah, Neuroscience, Parshah, Pentateuch (Chumash), Science, Sefirot, Sefirot, Toledot, Uncategorized, Zohar|4 Comments

Shoo Away the Mother Bird

Shoo Away the Mother Bird

If a bird's nest chances before thee in the way, in any tree or on the ground, with fledglings or eggs, and the mother sitting upon the fledglings, or upon the eggs, thou shalt not take the mother with the young; thou shalt shoo away the mother, but the young thou mayest take unto thyself; that it may be well with thee, and that thou mayest prolong thy days. (Deut. 22:6-7) Many years ago, I was at a physics conference in Princeton in honor of the 85th birthday of John Archibald Wheeler. At the lunch break, I sat alone at a table to eat my kosher lunch (I was always uncomfortable eating this airplane food typically served at conferences whenever I order kosher food. The sound of unwrapping the cellophane attracts everyone’s attention [...]

By Alexander Poltorak|2023-08-25T10:06:23-04:00August 24th, 2018|Deuteronomy, Devarim, Ki Teitzei, Parshah, Pentateuch (Chumash), Uncategorized|1 Comment

Re’eh – the Power of Seeing the Blessings

Re’eh – the Power of Seeing the Blessings

The Torah portion Re’eh, begins with the verse: Behold, I set before you this day a blessing and a curse. (Deut. 11:26) The first word of this verse, re’eh, literally means “see” in Hebrew. So, literally, this verse should be translated as: See, I set before you this day a blessing and a curse Spoken words are heard, not seen. Why did Moses implore people to see, as he was about to set before them a blessing and a curse? To understand this, we need to look at the following verses defining the blessing and the cure: The blessing, if ye shall hearken unto the commandments of the Lord your G‑d… (Deut. 11:27) …and the curse, if ye shall not hearken unto the commandments of the Lord your G‑d… (Deut. 11:28) Does this [...]

By Alexander Poltorak|2019-08-26T16:42:26-04:00August 12th, 2018|Collapse of the wavefunction, Deuteronomy, Devarim, Parshah, Pentateuch (Chumash), Quantum Theory, Re'eh, Superposition, Uncategorized, Wavefunction|6 Comments

Hillel, Shammai and Richard Feynman

Hillel, Shammai and Richard Feynman

The Talmud (tr. Shabbat) discusses two opinions about the manner in which we are to light Chanukah menorah. According to Hillel, we light the first light on the first night, two lights on the second night, etc. increasing the number of lights every night. According to Shammai, we are to do the opposite – light eight lights on the first night, seven on the second night, and so on diminishing the number of lights every night (according to how many days of Chanukah are still left). The Talmud concludes, ele v’elie diveri Elokim chaim (this and that are words of the living G‑d, i.e., both opinions are true and reflect the will of G‑d), but the Halachah (the practical law) is according to Hillel. The Arizal explains that whereas the law today is [...]

By Alexander Poltorak|2018-12-05T20:08:15-05:00January 1st, 2017|Chanukah, Holidays (Yomim Tovim), Mashiach (Messiah), Quantum Theory, Uncategorized, Wavefunction|3 Comments

Fig of Rabbi Akiva

What came first, the Schrödinger cat or the fig of Rabbi Akiva? You be the judge. Today we present a guest post by Rabbi Dr. David Kagan. Fig of Rabbi Akiva By Rabbi David Kagan, Ph.D. If Trumah (Trumah is a tithe separated from produce and given to a priest (Kohen) to be eaten with strict laws of purity) is mixed into ordinary food (chulin), and if the ratio of trumah to chulin is less than 1:100, the Trumah is nullified (batel) and the mixture may be eaten as ordinary food. (The law of nullification, bitul, applies to mixtures of two types of food – one being forbidden one allowed. With certain ratios, the minority is nullified and it has the same status as the majority. For example, if some non-kosher food was mixed [...]

By Alexander Poltorak|2019-03-17T16:12:11-04:00June 21st, 2015|Collapse of the wavefunction, Deuteronomy, Devarim, Quantum Theory, Superposition, Uncategorized|0 Comments

The End of Days II

This post is a continuation of the earlier post, The End of Days I. In this Torah Portion, Shemot, we read about the encounter between Moses and the Almighty at the Burning Bush. And the angel of the Lord appeared unto him (Moses) in a flame of fire out of the midst of a bush; and he looked, and, behold, the bush burned with fire, and the bush was not consumed… Moreover, He said: 'I am the G‑d of thy father, the G‑d of Abraham, the G‑d of Isaac, and the G‑d of Jacob.' And Moses hid his face; for he was afraid to look upon G‑d. And the Lord said: 'I have surely seen the affliction of My people that are in Egypt, and have heard their cry by reason of their [...]

By Alexander Poltorak|2019-10-17T15:09:26-04:00January 5th, 2015|Mashiach (Messiah), Names of G‑d, Uncategorized|1 Comment

The End of Days I

In this Torah portion, Vayechi, Jacob, gathers his children to reveal to them “Ketz HaYamim”–“the End of Days.” Rashi explains that Jacob’s intention was to reveal the date of the coming of Mashiach (Messiah). Jacob called for his sons and said, "Gather and I will tell you what will happen to you at the end of days. (Gen. 4:1) However, he proceeds rebuking his sons without revealing to them the Ketz — End of Days. Rashi says that Jacob looked into the future and saw his children being in exile for a long time. Rashi says that the word “ketz” (end)—spelled in Hebrew Kof-Tzadik—has the numerical value of 190. (Kof=100, Tzadik=90. 100+90=190). Jacob gazed 190 years into the future and saw his children still enslaved in Egypt. He became depressed and Shechinah (Divine Presence) left him. [...]

By Alexander Poltorak|2017-01-13T15:54:32-05:00January 2nd, 2015|Genesis, Mashiach (Messiah), Names of G‑d, Pentateuch (Chumash), Sefirot, Uncategorized, Vayechi|1 Comment

Two Beginnings

B’reshit bara Elokim et hashamaim v’et haaretz… In the beginning, G‑d created heaven and earth… Alternative translation: With two beginnings G‑d created heaven and earth… Genesis 1:1 *This is an abridged and updated version of my paper “Towards Reconciliation of Biblical and Cosmological Ages of the Universe” Presented at the Third Miami International Conference on Torah & Science in Dec. of 1999 and published in B’Or HaTorah, 13 (2002) p. 19. Contemporary science places the age of the universe in the thirteen to fourteen billion years range, or 13.787 ± 0.02, [1] to be precise. This age is derived from both theoretical models as well as experimental data. (For an overview of theoretical and experimental approaches to dating the universe and our planet Earth see my original paper TOWARDS RECONCILIATION OF BIBLICAL AND [...]

By Alexander Poltorak|2019-10-25T00:22:55-04:00October 12th, 2012|Age of the Universe, Bereishit, Bereshit, Collapse of the wavefunction, Cosmology, Creation, Entanglement, Genesis, G‑d, Kabbalah, Parshah, Pentateuch (Chumash), Quantum Theory, Superposition, Uncategorized, Wavefunction|4 Comments

On the Nature of Time and the Age of the Universe

Presented at the International Torah and Science Conference in Miami International University on December 18, 2005 Alexander Poltorak Introduction. This is the third in a series of articles, in which I attempt to sketch various approaches to reconciling a cosmological age of the universe currently estimated at 13.75 billion years with the Jewish tradition setting this age at less than six thousand years (5770 as of the day of this writing, to be exact). The first article [1] tackled this problem from the point of view of Copenhagen interpretation of quantum mechanics suggesting that there were two distinct forms of existence—physical and proto-physical—and that the first conscious observers, Adam and Eve, collapsed the universal wavefunction, bringing the world from amorphous proto-physical existence into tangible physical existence. This approach leads to two distinct [...]

By Alexander Poltorak|2020-10-15T23:00:27-04:00August 15th, 2012|Age of the Universe, Cosmology, Spirituality, Time, Uncategorized, Wavefunction, Witnesses|5 Comments

Shoo Away the Mother Bird

Re’eh – the Power of Seeing the Blessings

Hillel, Shammai and Richard Feynman

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