Questions tagged [science]

questions about science in relation to Judaism

28 questions with no upvoted or accepted answers
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11
votes
2answers
1k views

What is meant by the 974 “worlds” that were “created and destroyed”?

Midrash Tehillim 90:13 says that God created and destroyed 974 worlds before this one. What exactly does that mean? I've heard it used in defense of a modern understanding of evolution and cosmology ...
6
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0answers
124 views

What blessing would one have said on seeing Einstein for example?

The Oruch Hashulchan O Ch 224, 6 says הרואה חכם מחכמי ישראל שגדול בתורה מברך: "ברוך אתה ה' אלהינו מלך העולם שחלק מחכמתו ליריאיו, Someone who sees a Jewish Torah sage makes the blessing “ ...
6
votes
1answer
272 views

Gender and “Seeding” - Just Torah-Derived or Common Belief?

Niddah 31a writes (Davidson Edition translation): אמר רבי יצחק אמר רבי אמי אשה מזרעת תחילה יולדת זכר איש מזריע תחילה יולדת נקבה שנאמר (ויקרא יב, ב) אשה כי תזריע וילדה זכר Rabbi Yitzḥak says that ...
5
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0answers
84 views

Is mustard harmful to bees or the honey making process?

The Mishna in Bava Basra (2:10) says: (all translations from Sefaria) מַרְחִיקִין אֶת הַמִּשְׁרָה מִן הַיָּרָק, וְאֶת הַכְּרֵשִׁין מִן הַבְּצָלִים, וְאֶת הַחַרְדָּל מִן הַדְּבוֹרִים. רַבִּי יוֹסֵי ...
5
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0answers
139 views

Arvei Nahal - Acceptable Species

Vayikra 23:40 provides the commandment to take up the 4 species on Sukkot: וּלְקַחְתֶּם לָכֶם בַּיּוֹם הָרִאשׁוֹן פְּרִי עֵץ הָדָר כַּפֹּת תְּמָרִים וַעֲנַף עֵץ עָבֹת וְעַרְבֵי נָחַל וּשְׂמַחְתֶּם ...
4
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0answers
75 views

How does meshane hateva work?

When I asked my teacher about why some physical descriptions in the bible or medical practices in the talmud seem impossible/wrong today he told me that the physical nature of the world changed, which ...
3
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0answers
124 views

How do the outer planets: Uranus, Neptune and Pluto fit into Judaism?

It is not a secret that we discover new things in all fields of science, not mentioned in our sources all the time. We know that in Judaism the 7 planets represent/aligned with 7 spiritual forces and ...
3
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0answers
89 views

Maseches Beitzah 7a and science

In Maseches Beitzah 7a the gemara says that any animal that mates by day will give birth at day-this is talking about a chicken ,and any animal that mates by night gives birth at night, this is ...
3
votes
2answers
351 views

How is the male skeleton different from female?

This question is a follow-up to "Different-counts-of-the-248-organs-". As we see from the Mishnah in Ohalot 1,8, only the bones are counted as organs, namely a bone that has a sinew and some flesh. ...
2
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0answers
56 views

Relation between brain damage and the soul

Physical damage to the brain can lead to various psychological and cognitive phenomena, like drastic changes in character, selective memory loss (like forgetting faces but remembering names or vice ...
2
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0answers
209 views

Is the base for bloodletting in the Talmud purely “scientific” or traditional?

Bloodletting (הקזת דם) was a commonplace medical procedure in the Mishnaic times (see Shabbos 129). It is widely accepted that the ancient healers believed that: "... many diseases were caused by ...
2
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0answers
273 views

11 pairs of ribs - practice or tradition?

THis is a follow-up question to 248-organs. The Mishnah in Ohalot (1:8) states that there are 248 organs and lists all of them: "מָאתַיִם וְאַרְבָּעִים וּשְׁמֹנָה אֵבָרִים בָּאָדָם, שְׁלשִׁים ...
2
votes
0answers
46 views

Whey in butter (Chema't akkum)?

I recently read a responsum from R' Tam (brought in Shaarei Dura 78) where he discusses butter that was mixed with whey. While he permits regular butter from a gentile for consumption he nevertheless ...
2
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0answers
83 views

Why do we have an appendix according to Torah sources?

Is there any significance in Torah literature, attributed to the appendix and its function in the body?
2
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0answers
56 views

What type of mitzvah, if any, is a donation to medical research?

If I give money to a charity that finances medical research, I think I'm doing a mitzvah, but of what sort? Is this tzedakah when I'm not clothing or feeding the poor? Is it saving a life when there ...
1
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0answers
81 views

Why the fact that the Earth is spherical is a deep secret according to Zohar?

Following "zohars-knowledge-about-earths-shape" and related to my other question "why-did-G-d-create-the-earth-spherical": Zohar (Vayikra 10a) states the following, seemingly pointing to the fact ...
1
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0answers
59 views

Does Judaism differentiate between a planet and a star?

On the 4th day, G-d created Sun, Moon and the stars. Besides the Moon, Mercury, Venus, Mars, Jupiter, and Saturn were known since ancient times (not mentioning the existence of the real stars). ...
1
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0answers
21 views

Technological advances of Yehoshua's generation over the natives

My question is based on "were-rabbis-ahead-of-the-times". A claim is made that the Torah contains scientific knowledge known to Rabbis and unknown to Gentiles. Many try to bring examples from the ...
1
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0answers
87 views

Large scale hydroponics and Shmita

The gemara in Nedarim 59 (among many other places) discusses the concept of shmita produce and plants grown from them retaining their status when the original "seed" isn't destroyed when planted. In ...
1
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0answers
92 views

How do we define the word 'עולם'?

In the standard beracha 'formula' we use the phrase 'מלך העולם'. But what does the word עולם refer to in this context: Earth/world or universe? It may seem obvious that מלך העולם is referring to ...
1
vote
2answers
203 views

What defines a human in Judaism?

As a follow up to "creation-of-super-humans", The Gene-modification technologies promise interesting developments in human evolution/changes, both physical and intellectual. On the physical side - ...
0
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0answers
45 views

Database of Gematria, Notarikon, and Temurah Findings

I have been aware of Gematria, but now just learned of Notarikon and Temurah. There is a cool twitter feed by the TilingBot on hyperbolic tessellations. It is essentially a database of all the types ...
0
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0answers
55 views

What specifically was the ancient Jewish practice of rubbing an infant's throat?

The Jewish Encyclopedia article on "Consecration" says that the later "rubbing on" of oil aka "anointing" has roots in the practice of rubbing an infant's throat in preparation for receiving a mother'...
0
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0answers
34 views

Does Earth geography resemble anything metaphorical?

All I know about the traditional geographical metaphorism is that Jerusalem is the center of the world and the whole inhabitable space is divided between the 70 nations (besides the plain facts, like ...
0
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0answers
98 views

Women - less Mitzvot more body parts?

According to the Gemmorah sources: Women have much less positive Mitzvot than men, as they are freed from most of the time-related Mitzvot (Mishna Kiddushin 1:7). Women have more body parts than men,...
-1
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0answers
27 views

Biblical genetics - understanding child's resemblance to his parents

We start with the Biblical text Genesis.25.19: "וְאֵלֶּה תּוֹלְדֹת יִצְחָק בֶּן־אַבְרָהָם אַבְרָהָם הוֹלִיד אֶת־יִצְחָק׃" ("This is the story of Isaac, son of Abraham. Abraham begot ...
-2
votes
1answer
162 views

Historical ID lost can it be reclaimed

Could it be possible that many Hispanics who moved from Spain and having their family line coming from Jewish blood (Sephardi Jews), be actually Jews and not know it? There is a test now to check ...
-4
votes
2answers
179 views

Empirical evidence of Sages' intellectual superiority

Throughout ages, our Sages engaged in Halachic, scientific and philosophical arguments between themselves and with other nations' philosophers. We hold that the truthfulness of Talmudic discussions ...