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11

The Idea in Brief The verse is not speaking about any harm from the sun (or even the moon), but instead speaks to harm that occurs night and day; in this respect, the psalmist speaks to divine protection 24/7, which encompasses the time period during the time of the sun (daytime) and time of the moon (nighttime). Discussion The Tehellim were sung, and the ...


8

I found discussion of eclipses in the g'mara, but not of the science of them. On Sukkah 29a the g'mara first discusses eclipses as omens (all bad). It then turns to causes: The Sages taught that on account of four matters the sun is eclipsed: On account of a president of the court who dies and is not eulogized appropriately, and the eclipse is a type of ...


6

Why both ideas? We can address your final question - why did Rashi cite both of these explanations - on a simple, structural level by looking at the Talmud passage Rashi got them from. In Shevu'ot 9a, the Talmud deals with an apparent tension between these two concepts, each of whose transmitters derive them from the same textual point - the fact that this ...


6

The Rambam here is giving an easy way to calculate the moment of conjunction for future months. A (lunar synodic) month, as you stated, is 29 days 12 hours and 793/1080 hours. Since 28 days is exactly 4 weeks (bringing us back to the same point in the week), the next conjunction will occur 1 day 12 hours and 793/1080 hours later in the week relative to the ...


5

I would recommend having a look at this site. The maths is much too complicated for me, but the upshot is that our molad is two hours later than the molad when the calendar was formulated, and is getting progressively later every year. The author includes a chart (and good luck to you if you can read it) that indicates the relationship between the actual ...


5

The Magen Avraham (OC 526 sk 8) quotes the Shelah (here) that one should not look at the moon during kiddush levana but rather glance at it in the beginning and look down. The Shelah referneces what he wrote earlier (here) where he quotes the book Shushan Sodot (bio?) that one should not look at the moon seemingly ever. The Shushan Sodot himself (here) ...


5

When I'm sick during the winter (happens a lot unfortunately), I daven vasikin at home. I use the myzmanim + cell phone clock method, but also have a window nearby with the shades open. I've noticed that there's a substantial variation in the amount of light at sunrise, depending on the weather. If it's cloudy, it can be pretty dark outside, even when the ...


4

I believe you're looking for Shemot Rabbah 15:26. I've quoted and translated it for you below: דבר אחר: החדש הזה לכם, הדא הוא דכתיב (תהילים עב, ז): יפרח בימיו צדיק ורוב שלום עד בלי ירח, עד שלא הוציא הקדוש ברוך הוא את ישראל ממצרים, ברמז הודיע להם, שאין המלכות בא להם עד שלשים דור, שנאמר: החדש הזה לכם ראש חדשים, החדש שלשים יום, ומלכות שלכם שלשים דור. הלבנה ...


4

You wouldn't say it on your own, but you can say it after Kiddush Levana to the first three people you meet. (I was advised this in my youth.)


4

It wouldn't surprise me. Nefesh HaRav quotes some Orthodox rabbis who were disturbed by the phrase as it implies it's impossible to touch the moon; some wanted to simply change the phrase from "I cannot touch you" to "I am not touching you" (i.e. at this very moment). Rabbi Soloveichik felt that was the understanding of the original phrase: "just as I dance ...


4

The Mishna in Rosh haShana (3:1) states that even if all the Jews and the Beit Din saw the new moon, but didn't manage to declare the new month before the end of the day, then the (previous) month is 'full' (ie has 30 days and the new month would begin the next day). In other words, Rosh Chodesh is set by declaration of the people via Beit Din, not by when ...


4

You mention that you heard this in the name of R' Aharon Lewin. He writes something similar to this in his commentary HaDrash V'HaIyun (הדרש והעיון, B'reishis, 95). He remarks that: The mountains (harim) represent one's parents (horim) and upbringing. Heaven and earth represent the potentially negative spiritual influences of one's environment. The sun ...


3

The Mishna Berurah is quoting the Magen Avraham who in turn cites the Shelah as his source. The של׳ה can be found in שער האותיות ק׳ קדושה אות כ׳ח says מפני שפגם הלבנה גרמה האשה הראשונה דהיינו חטא חוה. This is different than the מגן אברהם's wording מפני שהם גרמו פגם הלבנה. The של׳ה can be understood as saying the exact opposite, that the מיעוט הלבנה ...


3

Just because the "error" in the molad moment seems small doesn't mean that it is insignificant. The approximately +2h delay relative to the mean lunar conjunction moment currently causes the provisional date of Rosh HaShanah (before the application of the postponement rules) to land on the "wrong" date (one day later) in 2/24 = 1/12 of years.


3

Since the first question was answered already I will address the second one only. The Avnei Yashfei 3:50:3 writes that if one says kiddush levana alone there is no inyan to search out for someone to say shalom aleichem since he said the passuk Tipal aleiheim and no one heard him(see @simchas Torah answer -Mattaeh Moshe reason).He adds by saying if one said ...


3

One consideration raised by R. M. Kasher is whether one s obligated in commandments on the moon or in outer space at all given the Torah expression “all the days which you are alive on this earth” (Deut. 12:1) in the context of mitzvos. Apparently he concluded that one is obligated see here (which cites this from JD Bleich, “Contemporary Halachic Problems”, ...


3

Many predators are more active during full moons, wolves are the classic example. Lions on the other hand wait until just after a full moon to become more active, as the moon rises later in the evening and thus affords the lion some time after sunset with total darkness. In some areas, though, small mammals actually can see their predators better during a ...


2

We ascribe significance to lunar eclipses (Sukkah 29a), of which blood moons are a subset. The reason they occur so often on Jewish holidays is probably because we have holidays on or around the full moon (+- 2 days) half the months of the year: Sukkos, Tu b'Shevat, Purim (and Purim Katan), Pesach, Shivah Asar b'Tamuz, Tu B'Av. Blood moons, as well as all ...


2

The רמב"ם in הלכות קידוש החודש פרק ו says in הלכה ח: והמולד הראשון שממנו תתחיל, הוא מולד שהיה בשנה ראשונה של יצירה, והוא היה בליל שני חמש שעות בלילה ומאתיים וארבעה חלקים, סימן להם ב' ה' ר"ד; וממנו היא התחלת החשבון. So Molad Tohu was on Sunday night, 2 Tishrie year 0001, 5 hours and 204 parts after sunset, i.e. 23:11 PM and 33⅓ seconds, according to ...


2

I am glad you asked this question, esp. just before Rosh Hashanna! I have been wondering about the same thing. You may want to read this article. It states: In the present era the median length of the lunar cycle is about 29 days 12 hours and 30 minutes, the MSM is slightly more than 29 days 12 hours and 44 minutes, the shortest lunations are about ...


1

This question is asked by R. Yitshak Weiss in Minhat Yitshak (8:15). He answers based on the Lev Aryeh to Hullin 60b. An aggada states that the moon complained about its equivalence with the sun. To rectify this, the moon was lessened. The Lev Aryeh explains that the alternative solution; having the sun be increased, is not mentioned, since the sun's ...


1

Yeshaya prophesied (Isa. 30:26): "וְהָיָ֤ה אוֹר־הַלְּבָנָה֙ כְּא֣וֹר הַחַמָּ֔ה וְא֤וֹר הַֽחַמָּה֙ יִֽהְיֶ֣ה שִׁבְעָתַ֔יִם כְּא֖וֹר שִׁבְעַ֣ת הַיָּמִ֑ים בְּי֗וֹם חֲבֹ֤שׁ יְהֹוָה֙ אֶת־שֶׁ֣בֶר עַמּ֔וֹ וּמַ֥חַץ מַכָּת֖וֹ יִרְפָּֽא" "And the light of the moon will be like the light of the sun and the light of the sun will be seven times like the light of ...


1

This article explains how far things have drifted over time: http://yourjerusalem.org/2010/02/jewish-calendar-is-slowly-drifting-off-track/ To summarize it, there are two calendars in use (lunar and solar), and both are not quite 100% perfect. Of the two, the lunar calendar is a lot more accurate (it is off by about 1/7th of a "chelek", very reasonable ...


1

During certain pressing times, the secret of these calculations were used when other means couldn’t be verified or were questionable, and thus they didn’t want this secret to get out so that it can be implemented when necessary, hence its name - secret. Hamaor Hakatan, Rosh Hashana 20b (Rif, p. 14 in OzVehadar) וזה הוא סוד העיבור בדחיית מולד זקן שהוא ...


1

Per Breslev.org Sod HaIbbur includes all the secrets of the Torah "סוד העיבור בו כלולים כל סודות התורה". All difficult questions such as Bechira, Why we are the chosen nation, are answered by the Sod HaIbbur - per Rabbi Nosson M'Breslov. The Sod HaIbbur also includes Wisdom and knowledge pertaining to changes and the the future that are pertaining to the ...


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