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5
votes
1answer
106 views

Can you experiment on animals?

May a person perform or otherwise participate in experiments on live animals which will cause the animals pain? I would assume this is forbidden under tzaar baalei chayim. But perhaps there is a heter ...
5
votes
1answer
61 views

Is there any support for the claim that tekhelet and argaman could be derived from the same creature?

Is there any indication in Chazal (or at least in other ancient literature) that tekhelet and argaman could be derived from the same creature (as currently proposed by the Tekhelet Institute)?
5
votes
0answers
99 views

Does the Torah ever allude to Earth being a spherical celestial body in space?

Taken at face value, the instances in which the Heavens and Earth are mentioned in the Torah, it is the Heavens above and Earth below. From what I gather, many secular scholars take from this that the ...
4
votes
4answers
215 views

Lubavitch and Geocentricism

I read here in an article by Rabbi Gil Student that the late Lubavitcher Rebbe zy"a believed in the geocentric model despite the modern scientific evidence to the contrary. What is the source for this ...
4
votes
3answers
288 views

Theology on evolution from khan academy

In this video on khan academy, Khan makes a few theological points regarding evolution. His main point is that evolution can be reconciled with intelligent design by saying that God could have created ...
4
votes
2answers
230 views

Stars are living creatures?

the Rambam in yesodei torah says that stars are creatures with intellect. how do we reconcile this with modern science which says that they are merely inanimate balls of hydrogen and helium gas.
4
votes
5answers
155 views

The Plague of Darkness

This is a two fold question 1)The plaque of darkness has considerable commentary, however I have yet to find a rabbi who speaks about what created the darkness. Therefore, What created the darkness ...
4
votes
1answer
327 views

Zohar's knowledge about Earth's shape

I recently heard from a rabbi that people (in the Zohar's view) were standing on the Earth's sphere both above and below, and while it was day for some, it was night for others and vice versa. If its ...
4
votes
2answers
247 views

Halachic Relevancy of 'Proving God'

The first halacha in the Mishnah Torah states that you must know for certain that God exists (Yesodei Hatorah 1:1). Does this mean that according to Rambam, God can be proven to exist through ...
4
votes
3answers
85 views

Why did God say יִקָּווּ הַמַּיִם, it should happen by itself naturally

In Bereishis 1:9 it says וַיֹּאמֶר אֱלֹהִים יִקָּווּ הַמַּיִם מִתַּחַת הַשָּׁמַיִם אֶל מָקוֹם אֶחָד וְתֵרָאֶה הַיַּבָּשָׁה , And God said, "Let the water that is beneath the heavens gather into one ...
4
votes
1answer
154 views

How is Hagalah done on glass?

With regards to using glass vessels on Pesach that were used year round, The Shulchan Aruch HaRav (Orach Chaim 451:63) says that, for Ashkenazim, if the glass vessel was used multiple times during the ...
4
votes
2answers
132 views

Shabbat with time dilation in space

I know there is some discussion in space/planets.. How would you keep shabbos in space? The Rabbi I asked this shabbat pretty much said the same thing; and you go by Jerusalem time when in doubt. ...
4
votes
0answers
270 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 ...
3
votes
3answers
157 views

Absorption of Taste in Pot-Scientific explanation

Is there a scientific explanation for the concept of "blias issur" absorption of taste in pots. Like for example if since heat expands materials maybe the taste creeps in. (I'm not asking about ...
3
votes
2answers
162 views

Schrödinger's cat and yibbum

Over Shabbos, the Shalosh Seudos discussion turned to the Monty Hall problem, which confused a lot of people [and which (#Humblebrag) I was able to clear up for them in under 30 seconds ;)]. Then, ...
3
votes
1answer
971 views

What are the colors of the rainbow?

While the colors of the rainbow (or spectral colors) form a continuum, people have assigned them to finitely many pigeonholes for centuries and probably millennia. Apparently, Newton used seven colors ...
3
votes
2answers
98 views

Biologically, what are sirchos?

Biologically, what are Sirchos? Are they a Tumor?
3
votes
1answer
68 views

Who suggests that Creation Ex nihilo was only a small point and light?

If this is a simple minded question, please forgive me, but I'm not Jewish and so most of my information is via naive study and second hand. I've been told by a Jewish friend in my physics class ...
3
votes
1answer
147 views

Halacha and danger to life

Suppose there is an halachically prescribed, commonly-practiced action, which has been demonstrated scientifically to lead to death of the action's object and/or subject with a certain low probability ...
3
votes
1answer
205 views

Effect of knockout on my soul

I have experienced a knockout two times in the boxing ring during my active fighting career. At the time I was KO, I was conscious of nothing and then I woke up. I am interested in knowing what was ...
3
votes
1answer
69 views

How did the water climb so high?

The Gemara in Sota 34 says וכיון שניטבלו רגלי כהנים במים חזרו המים לאחוריהם שנאמר וכבוא נושאי הארון עד הירדן וגו' ויעמדו המים היורדים מלמעלה קמו נד אחד וכמה גובהן של מים שנים עשר מיל על שנים עשר ...
3
votes
0answers
59 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
votes
0answers
63 views

אלקים בגימטריא הטבע and not טבע?

There's a oft quoted saying that "אלקים בגימטריא הטבע." Why is it הטבע and not טבע? Isn't it "cheating" to add the extra "ה"?
2
votes
2answers
242 views

Why not determine how long to wait between meat and milk using science?

If the time required to wait between eating meat and milk is based on the scientific definition of digestion, why don't we ask today's experts and set a defined time for everyone instead of different ...
2
votes
1answer
37 views

Is chimutz a wholly physical phenomenon?

The gemara seems to imply that chametz is not a concern with flour mixed with fruit juice. Indeed, amongst other effects, sugars (which are present in fruit juice) slow gluten development. However, ...
2
votes
1answer
93 views

In vitro meat — further questions

Related to this question: Does artificial meat grown in a petri dish have the halachic status of meat? Assuming that in vitro meat becomes widespread and assuming that it would be hechshered per the ...
2
votes
1answer
93 views

Is a Jewish med student allowed to use body parts donated to science?

Would you be required to refuse to work on bodies donated to science for educational purposes?
2
votes
2answers
274 views

Synthetic unkosher meat?

Suppose tissue identical to that of a pig could be created synthetically (with kosher ingredients) in a science lab. The meat would be completely indistinguishable from pig meat, but it would never ...
2
votes
1answer
149 views

Archaeology and תחיית המתים

A few minutes ago, while standing in the rain and seeing some people passing out some pamphlets an idea occurred to me. Are there any papers, books, dvar torahs etc, which links the traditional ...
2
votes
0answers
51 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
votes
0answers
30 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 ...
2
votes
3answers
276 views

How was kashrut affected by Science?

I have been reading a lot of questions concerning kosher foods, to get a better understanding of what it means for something to be kosher. To an atheist, this site is very helpful. But as a chemistry ...
1
vote
6answers
813 views

How do we reconcile the order of creating animals betweeen Genesis and science?

http://skeptics.stackexchange.com/questions/6932/does-the-torah-encoded-age-of-the-universe-match-science#comment53788_6932 The Genesis 1 creation account conflicts with the order of events that ...
1
vote
2answers
86 views

Scientific explanation for Sotah water

Is there a scientific way to understand the effect that the Sotah water has on a Sotah? Relevant verses below (Bamidbar chapter 5): יז: וְלָקַח הַכֹּהֵן מַיִם קְדֹשִׁים, בִּכְלִי-חָרֶשׂ; ...
1
vote
3answers
904 views

What is the torah view on the dinosaurs?

What is the Torah view on the dinosaurs? There's no mention of them in the Torah, only that the world was created in 6 days. If they existed, Adam and his descendants should have seen them. Yet ...
1
vote
1answer
338 views

How do Jews reconcile 6 days creation with light from stars 1 billion years ago? [duplicate]

Possible Duplicate: Why the vast difference of opinion about the age of the Universe? I was surprised my self when I learned that light comes from stars that are millions or billions of ...
1
vote
1answer
89 views

The luxury of murex trunculus indigo

The Tekhelet Institute acknowledges that murex trunculus indigo is molecularly equivalent to plant-based indigo that was available in the ancient world for far cheaper (kala ilan). They reason that ...
1
vote
1answer
92 views

Updating of holy books

I am curious if such thing is possible, e.g. if some new evidence is found (archeological or other scientific or other). So the next generation will have more accurate interpretation, because we all ...
1
vote
3answers
525 views

the four foundations - fire, wind, water, earth

How do we reconcile the torah view of four foundations fire, wind, water, and earth with modern science which demonstrates wind, water, and earth are really not much different. for example, water can ...
1
vote
4answers
117 views

Did the Torah Sages discuss evolution

Are there examples in chazal of the sages discussing the phenomena of micro-evolution (or macro), i.e. adaptive changes in creatures.
1
vote
2answers
76 views

Torah and Non-Believers, a/k/a, Scientists and Atheists

Is there evidence in the Torah of people who did not believe in Hashem or any other god(s)? I am specifically inquiring of those who believed in what today would be called science or ...
1
vote
2answers
149 views

Kohanim and paternal lines

Do you know the explanation why in modern Kohanim there is a paternal line encompassing about 50% of the Kohanim and then many lines encompassing the other 50% 1. Is it possible for a Kohen to be ...
1
vote
0answers
66 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
0answers
45 views

What is the kashrut status of synthetic/in vitro meat? [duplicate]

It was reported in the news today (at least in the UK) that another step forward has been made towards the creation of "synthetic meat". From BBC News: The world's first lab-grown burger was ...
0
votes
2answers
85 views

Why is the big bang considered a proof for Jewish tradition

From the little I understand of the big bang It states that the universe was in a very high density state and then expanded. This is commonly used as a proof that the world had a beginning and thus ...
0
votes
1answer
150 views

why was technology withheld for so long from man

Why did God withhold the discovery of modern technology from man until recently? what is the reason for this and why does this reason not apply in our era? (according to the shaar bitachon ch.3 God ...
0
votes
1answer
52 views

Scaling Time to Reconcile Genesis with Science [duplicate]

Some scientists try to reconcile the biblical account of creation with the modern scientific view. see for example Gerald Shroeder's at http://www.aish.com/ci/sam/48951136.html There he claims the ...
0
votes
3answers
74 views

Does the Torah 'know' about 'quantum mechanics' and 'DNA synthesis'?

There are many articles and books available on the interplay between science and Judaism. Very often they come in the form of a halachic discussion of applying science to be able to resolve a halachic ...
0
votes
1answer
52 views

Vegan tekheileth

Does the oral tradition that identifies the hilazon as the source of tekheles necessarily indicate that one could not create the indigo-colored wool by other means? The gemara certainly indicates that ...
0
votes
2answers
79 views

is one an apikores for believing only in Darwin's evolution as a possibility? [duplicate]

Given that the torah's account of creation clearly seems to state that man was created independently from the animals, and likewise, the animals, plants, were created from the ground, would someone ...