Holidays (Yomim Tovim)

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Jewish Holidays

The Temple as a Model of a Cell

Introduction Today, on Tisha B’Av—the ninth day of Av, this year commemorated on the tenth day of Av because the ninth is Shabbat, when mourning is forbidden—we mourn the destruction of the Holy Temple—Bet HaMikdash. This day commemorates the destruction of the First and Second Temples in Jerusalem. The First Temple was destroyed by the Babylonian king Nebuchadnezzar II, and Second Temple was destroyed by the Romans. Aside from its historical significance, why is the destruction of both Temples so tragic that it is mourned even today? What is the significance of the Temple in Jerusalem? The Temple was a building where kohanim-priests offered sacrifices. The sages state that the Temple was a source of life for the Jewish people.[1] This can be seen easily if we examine the parallels between the Temple and [...]

By |2022-08-07T13:43:09-04:00August 7th, 2022|Biology, Kabbalah, Tisha B'Av, Uncategorized|2 Comments

Sefirat HaOmer—A Study in Klal u’Prat

The forty-nine days between Passover and Shavuot are called the days of Sefira or the days of counting Omer—Sefirat HaOmer—when Jews count every day as the first day of the omer, the second day of the omer, and so on until on the Eve of Shavuot, when the last, forty-ninth day is counted. . . . And ye shall count unto you from the morrow after the day of rest, from the day that ye brought the Omer of the waving; seven weeks shall there be complete.Leviticus 23:21 Seven weeks shalt thou number unto thee; from the time the sickle is first put to the standing corn shalt thou begin to number seven weeks.Deuteronomy 16:9 This period is marked by semi-mourning with observance of such customs as avoiding haircuts, not shaving, not celebrating [...]

Collapse and Revelation

The collapse of the wave function is the process of revealing hidden possibilities. Reducing uncertainty reveals information. Until the wave function collapse, the system is in an uncertain state—the state of superposition. The measurement that causes the collapse of the wave function eliminates this uncertainty revealing the state of the system. The collapse occurs as the result of an experiment or observation. It is the discovery of the state of the system. The process of discovery—revelation—in the terminology of Kabbalah—is the process of revealing Alma d’Isgalya (Revealed World) from Alma d’Iskasya (Hidden World). This is why the splitting of the sea can be seen as an allegory of the collapse of the wave function.

Shavuot (in Russian)

Шавуот Праздник Дарования Торы Aлександр Полторак    Закончился праздник Песах.  Все евреи поспешно убрали пасхальную посуду в особые шкафы или на чердаки до следующего Песаха.  В домах появились после восьмидневного перерыва свежеиспечённые булки. Наступили будни... Прошедший праздник оставил во рту приятный привкус подгоревшей мацы, воспоминания о Седере, проведенном в кругу семьи, рассказы об Исходе. Но закончился ли на этом Песах? Мораль и Свобода Выбора Вспомним, что главная идея Песаха это идея свободы, свободы от рабства Египетского или иного, физического или духовного. Итак, Бог вывел еврейский народ из Египта, сделал нас свободными людьми. Но стали ли мы свободными, освободившись от гнёта египетских надсмотрщиков?  Подчас, раб, освобождённый своим хозяином, остаётся у него добровольно, ибо некуда и незачем ему идти, нет у него ни места, ни смысла жизни...  Что же это всё-таки такое, свобода? О свободе [...]

Counting Weeks and Days

There is a Biblical Commandment to count the days between the Passover and Shavuot, the Feast of Weeks (a.k.a. Pentecost). We start counting on the second day of Passover (the first day of the barley harvest in the land of Israel, when the wave-offering of the omer, i.e., “sheaf,” of ripe barley was made in the Jerusalem Temple) and finish on the eve of Shavuot—the day when two loaves of bread made of wheat were offered at the Temple. There are exactly seven weeks (forty-nine days) between these two holidays; we are commanded to count the weeks and the days. These forty-nine days are called days of Sefirat HaOmer (the ays of “counting the Omer”) or simple days of Sefirah. This commandment is given in the following verses of the Torah: And ye shall count [...]

Sukkot — Bringing Time into Space

Jews have a very strange custom to take four species (Heb. arba’a minim)—a fruit of a citron tree (etrog), a branch of a date palm (lulav), boughs from the myrtle tree (chadassim), and branches of the willow tree (aravot)—and wave them in all six directions (na’anuim) while holding the species together. The precise movements involve bringing the bunch to one’s heart, then moving them to and fro in all six directions, three in each direction each time returning the bunch to the heart. A strange sight indeed… what could it possibly mean? I’ve written before that Sukkot has to do with bringing holiness into time and space. The seven days of dwelling in the sukkah-booth (a.k.a. tabernacle) is related to the most important cycle of time – 7: there are seven days in a week, seven years in a Sabbatical cycle (shemita), seven [...]

By |2020-10-15T23:06:22-04:00October 18th, 2019|Sefirot, Space, Sukkot, Sukkot, Time, Uncategorized|2 Comments

Chol Hamo’ed — Days in Superposition

Today is Chol Hamo’ed Sukkot – the intermediate days between the first and the last days of the holiday of Sukkot. These days are not quite holidays, but they are not ordinary days either. They are a strange hybrid or a mixture of a holiday and mundane days. In physics, we have a word for that – the state of superposition. I’ve written about it in my article Pesach Sheini – in a State of Superposition. Not to repeat myself, I refer the reader to that article for background information. In short, in physics, we speak of states of the system. Say, one state of a dreidel may be spinning clockwise. Another state would be spinning counterclockwise. These are pure states. In quantum mechanics, a system could be in a mixed state. Say, [...]

Fitting Pieces of the Puzzle Together

Meditations on the Maaseh Merkavah – IV This is the fourth and the final installment in the series of posts related to Ezekiel’s prophesy, Ma’aseh Merkava, “The Making of the Chariot.” For background information, refer to the previous posts, “Space – Between Future and Past,” “Relational Space,” and “Collapse of the Wave Function.” Regular readers of my blog may be wondering about my last post “Futurist Interpretation of Quantum Mechanics,” which was about my new interpretation of quantum mechanics. This is not a physics blog, however; the Quantum Torah blog is about Torah and physics (or, more broadly, Torah and science). What did the last post have to do with Torah? Hopefully, it will all now become clear. Last Shavuot I had a very unusual experience. Sitting in shul listening to the reading [...]

Collapse of the Wave Function

Meditations on the Maaseh Merkavah – III This is the third installment in the series of posts related to the Ezekiel’s prophesy, Maaseh Merkava, “The Making of the Chariot.” For background information, the reader is referred to my previous posts, “Space – Between Future and Past” and “ Relational Space.” As I wrote in the first post, “Space – Between Future and Past,” Sefirot line up against four letters of Tetragrammaton, Y‑H‑W‑H, as follows: Yud י Chokhmah, Abba Heh  ה Binah, Imma Waw  ו Six Lower Sephirot (Z”A) Heh  ה Malchut   The first two letters of the proper name of G‑d, Y‑H‑W‑H – Havayah, or Tetragrammaton – are י “Yud” (sometimes transliterated as "Yod") and ה “Heh” (sometimes transliterated as "Hey" or "He").  During the reading of the Ezekiel’s prophesy Maaseh Merkava [...]

Relational Space

Meditations on the Maaseh Merkavah – II This post is a sequel to my previous post, “Space – Between Future and Past.” For background information, the reader is referred to that post. My second Shavuot “epiphany” was that space is relational. Not that I realized that space was relational for the first time – I always thought so. But, for some reason, thinking about the meaning of the four faces of Chayot, the "living creatures" – the angelic beings described in the prophecy of Ezekiel that we read on Shavuot – made it absolutely clear in my mind. Isaac Newton The debate about the nature of space goes back at least to the times of Newton and Leibniz. Isaac Newton believed (as it is apparent from his mechanics and as it [...]

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