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AskScience AMA系列。我是格雷琴-贝尼迪克斯博士,一位宇宙矿物学家和天体地质学家,我研究太空岩石 目前是科廷大学的教授,我利用陨石的化学、矿物学和光谱学来了解小行星和行星的形成和演变。AMA!

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2022 年 第 48 周归档(11.28 - 12.05)

If you were sent back to the ancient world before Jesus, how would you figure out what year it is? (www.reddit.com)
What movie/TV show is presented as women empowering but is actually the opposite? (www.reddit.com)
Do we know what happened to George Wilson (the defendant of United States v. Wilson)? (www.reddit.com)
Is there any particularly reason why American fantastical media (books, films, etc) doesn't take much inspiration from American Folklore? (www.reddit.com)
Why not use hydrogen and deuterium in fusion reaction rather than tritium and deuterium? (www.reddit.com)
Older women of Reddit, at what age was your relationship with s*x the best? (www.reddit.com)
Teenagers before the internet: what did you do in your room during your spare time? (www.reddit.com)
How would a 50 year old woman that dropped out of school in the 6th grade and can barley do basic arithmetic go about going to college? (www.reddit.com)
How do you think you’d fare if you didn’t have your cell phone for a 24 hour period? (www.reddit.com)
How do Beauvoir and Kierkegaard differ in their approach of existentialism? (www.reddit.com)
Women of Reddit, if there were no dangers out there on the streets, what would you be doing freely with no hesitations whatsoever? (www.reddit.com)
In DC vs Heller, Scalia mostly relies upon historical contextual understanding of what language of 2nd amendment was intended to mean. However, most of these references are not from the founders of the Constitution. Did any of the founders explain why the 2nd amendment was included? (www.reddit.com)
Why do so many laymen tend towards moral relativism, but philosophers tend towards moral realism (www.reddit.com)
Why didn’t Mississippi basin have as large a population as Ganges basin in India or Yangtze in China? (www.reddit.com)
Why is compatablisim the mainstream belief regarding free will/ the most common amongst philosphers? (www.reddit.com)
Why do people assume Kim Kardashian isn’t as terrible of a person as Kanye when she was with him for so many years? (www.reddit.com)
Is there a procedure or theory on how we *should* be defining words, especially political terms like 'socialism'? (www.reddit.com)
Ladies who love true crime, what case(s) are you particularly fascinated by? (www.reddit.com)
Did the idea of an army nominating a champion to fight for them really exist in history? (www.reddit.com)
What were the most important logistical differences between ancient armies and early modern armies? (www.reddit.com)
Why was a relatively small percentage of the Jewish population of Germany murdered compared to Poland's during the Holocaust? (www.reddit.com)
In traditional Hawaiian culture the child of incestuous unions, especially between full brothers and sisters, were considered divine and their social rank equal to gods. Did the heavy practice of multi-generational inbreeding cause any genetic diseases amongst the population? (www.reddit.com)
How accepted was the “clean Wehrmacht” myth in Germany during the postwar era? What role did the German state have in the propagation of this myth? (www.reddit.com)
Is American politics really just people making statements in reaction to other statements but no one actually does anything for the people? (www.reddit.com)
There's consensus among historians that Rome's seven kings are "legendary," but is there consensus on whether the Roman Kingdom existed in some form at some point? (www.reddit.com)
Women who have been in abusive relationships, how do you let go of wanting your ex to truly understand and validate how much pain they caused you? (www.reddit.com)
What happened to the slaves of the Arab slave trade? Where are their descendants and where do we see the most significant impact of this millenia long trade on the arab world (by that which parts of the Arab world)? (www.reddit.com)
How far back in time would I have to go before the average person would not recognize the typical smiley face design of two dots for eyes and a round line for a mouth? (www.reddit.com)
If all the hair on our body disappeared with evolution becausd we wear clothes, why do we still have pubic hair ? Shouldn't it be the first spot to disappear since it's the most often clothed ? (www.reddit.com)
In 1926, César Vallejo wrote: "it will be worthless for man to go to the moon if profits aren't shared between workers and owners." Was going to the moon already in the air as something not utterly fantastical due rapid advances in flight? (www.reddit.com)
Do we have any real reason to believe the dreamtime stories are anywhere near as ancient as people seem to assume they are? (www.reddit.com)
Major philosophers who think someone can be wrong about whether they are in pain or not? (www.reddit.com)
How did you overcome the loss of someone who was an important part of your life? (www.reddit.com)
How does moral realism account for differences of opinion about morality? (www.reddit.com)
What is the greatest struggle you’ve had to overcome? (www.reddit.com)
My grandfather used to joke “You can sum up Russian history in five words: And Then It Got Worse.” How old is this joke, and the idea that Russia is a uniquely unfortunate country? (www.reddit.com)
What is the most beautiful thing in nature you’ve ever seen or witnessed? (www.reddit.com)
when did you realize that your life is "real life" with real consequences? (www.reddit.com)
What was the American public's reaction to Reagan's firing of 11k ATC workers in 1981? Did this have any economic impacts to the country? Did it cause flight delays? How did all those airports find new employees all of a sudden (or were the fired members quietly rehired)? (www.reddit.com)
how do you deal with no one ever really showing romantic interest/having a crush on you? (www.reddit.com)
What is a simple way to understand Jean Baudrillard's concept of hyperreality? (www.reddit.com)
How would philosophy react to the introduction of an alien civilization? (www.reddit.com)
Why is soccer so prevalent around the globe? When did that start, and how was it culturally transmitted? (www.reddit.com)
Is it childish that I as an adult(24~25m) enjoy playing kid's games and buying legos because I didn't have any happy moments in my childhood? (www.reddit.com)
How would you react if you walked in on your SO pleasuring themselves to photos of you? (www.reddit.com)
What is your hands down favorite piece of clothes you own? (www.reddit.com)
Switzerland, Austria and Germany famously have "hidden champions" - small and mid-sized enterprises that are world leaders in their field but relatively obscure. Are there any goods reads on how they became so successful and history behind it? (www.reddit.com)
What is one company you go out of your own way to make sure to NOT give your business to? (www.reddit.com)
What is the origin of the "so-so" hand gesture, where the hand is held flat with the palm facing the ground and then slightly rocked back and forth? (www.reddit.com)
Will Durant's The Story of Philosophy: Is it useful/accurate/worthy/"good"? Will it help orient me toward the major questions and fields, or is it considered too problematic to bother with? Any similar recommendations for general introductions? (www.reddit.com)
How to argue against conservative view of Sexuality (www.reddit.com)
Since humans are imperfect beings, does that mean our potential for improvement is infinite? (www.reddit.com)
How did you get better at expressing myself philosophically? (www.reddit.com)
The Roman Empire: how to respond to Internet pseudohistory? (www.reddit.com)
Are there any arguments that different moral theories are/n't even talking about the same kind of morality/ought? (www.reddit.com)
When the ‘new world’ was discovered, was the information kept secret? We’re there fears of how the masses would react to hearing of another world? (www.reddit.com)
Some Mexicans have Nahuatl surnames (e.g., Poctzin, Xico(h)téncatl, etc.). Are these survivals from pre-colonial times, later national-romantic/indigenist adoptions, or something else entirely? (www.reddit.com)
How did the wider European community react to Bartolome de Las Casas accounts of Spanish atrocities in their colonies? (www.reddit.com)
What was the architecture of M'banza-Kongo/São Salvador in the Kingdom of Kongo like? (www.reddit.com)
Is the Russian invasion actually going as badly as the western media portrays it to be? (www.reddit.com)
Did any philosophers write about being depressed that moral and cultural relativism is true? (www.reddit.com)
Today many thousands of citizen scientists (amateurs being crowdsourced under the guidance of professional academics) regularly contribute to various fields of science, sometimes in very important ways. Is there a role for "citizen historians" too? (www.reddit.com)
What was the deal with bullet bras in the 1950s? Why did they become a trend? Were they seen as scandalous or confusing or otherwise cause much backlash or cultural debate? Why did people want it to look like they had 2 traffic cones on their chest? (www.reddit.com)
Do we have any compounds or materials on Earth that compared to the rest of the universe is incredibly rare? (www.reddit.com)
What movie can't you watch because it hits too close to home? (www.reddit.com)
How do SARS-COV-2 Omicron variants BQ.1 and BQ.1.1 compare to Omicron BA.5, in terms of COVID-19 severity? (www.reddit.com)
If AI can already generate text-to-image how a captcha that asks to "select taxis" to prove that I'm not a robot is still used? I know it is not exactly the same, but shouldn't captchas be obsolete by now? (www.reddit.com)
Is there a consistent and objective way to assess the color of an object? A transform function from spectrum to RGB, maybe? (www.reddit.com)
how much potential energy is accrued the further a body moves away from the earth? (www.reddit.com)
Do temporary viruses or infections affect quality of sperm cells? Is a child conceived while the father has a bad cold or influenza at higher risk of birth defects or problems? (www.reddit.com)
I am currently reading Karl Marx's "Das Kapital". What are some critics I should know/things to keep in mind while reading it? (www.reddit.com)
Why do Christians today refer to the Messiah as "Jesus" instead of his original Hebrew name (𐤉𐤄𐤅𐤔𐤏) pronounced "Yashua"? (www.reddit.com)
In WWII, why did Japanese troops surrender in China but refuse to surrender in the Pacific? (www.reddit.com)
Women who’s SO went “Redpill” or joined the redpill movement, how did their words, behavior, abs attitude toward you change? (www.reddit.com)
Has there ever been a politician who was just a genuinely good, honest person? (www.reddit.com)
Why do people believe that uploading their consciousness will make them live forever? (www.reddit.com)
What is one makeup technique that you will never stop doing even if it goes “out of style”? (www.reddit.com)
Were there a lot of addicts in the Victorian era when things like opium, heroin, and cocaine were being used as medication and could be purchased so easily? (www.reddit.com)
Which celebrity do you think truly regrets being famous or being in the spotlight? (www.reddit.com)
I'll need Foucault's theories for my thesis, where should I start from? (www.reddit.com)
Right now Im learning that love isn’t always enough, when did YOU realize that love isn’t enough and how did you deal with it? (www.reddit.com)
What did the wives of men who retire to the forest get up to while their husbands were away (I think in India, maybe other Hindu/Buddhist cultures)? (www.reddit.com)
Women of Reddit, how do you prepare yourself for the possible loss of a parent? And how do you support your family through it all? (www.reddit.com)
Do some people lack “collective effervescence“? Has any research been done on this? (www.reddit.com)
Those of you who have left an abusive relationship; what did you need to hear or accept? (www.reddit.com)
Do people with tetrachromacy or colorblindness experience seasonal affective disorder at the same rate and intensity as people with trichromacy? (www.reddit.com)
How may a psychology undergraduatestudent chart a way to become a philosopher of mind? (www.reddit.com)
How would you feel if your partner bought you something you really wanted but also got it for their sibling? (www.reddit.com)
Which species of dinosaurs had feathers, and how much do we know about them? (www.reddit.com)
Does preventing evaporation on canals and reservoirs increase the ambient dryness/negative environmental impact overall over the long term? (www.reddit.com)
Why siege a castle at all? Couldn't they just go around it instead and ignore it? What were the disadvantages? (www.reddit.com)
How do you politely shut down alternative history discussion, but without conceding defeat? (www.reddit.com)
Are all modern birds descended from the same species of dinosaur, or did different dinosaur species evolve into different bird species? (www.reddit.com)
In traditional Hawaiian culture women would be put to death for eating pork, coconuts, taro, several types of fish, and 67 out of 70 varieties of bananas. What did Hawaiian women subsist off of? Why was there such a drastic limitation on what women could eat? (www.reddit.com)
Is it permissible for a man to escape a cruel punishment, even when he is guilty? (www.reddit.com)
How long does it take for something to become 'philosophical canon'? (www.reddit.com)
Are their any good arguments against Modal Realism? (Metaphysics of Modality) (www.reddit.com)
Has there always been a ~30 year “cultural echo” as young people that are now in positions of power and influence set out to recreate fashion and cultural trends that were popular when they were children? (www.reddit.com)
What Spinoza means when he says that "God is explicated by the nature of human mind"? (www.reddit.com)
Before collectivization, Russia had been the "breadbasket of Europe". Afterwards, the Soviet Union became a net importer of grain, unable to produce enough food to feed its own population. How did this happen? (www.reddit.com)
If it’s not a ‘fuck yes’ it’s a ‘no’. How much do you agree with that statement? (www.reddit.com)
In 1634, French explorer Jean Nicolet wore Chinese robes to visit native tribes in Wisconsin, believing he would meet the Emperor of China. But people had already known America wasn’t Asia by the 1500s. Why didn’t the news reach Nicolet? (www.reddit.com)
What do you remember from your last day of high school? (www.reddit.com)
Mods at /r/worldnews are permabanning anyone who says the Holodomor does not qualify as genocide. Is it the dominant view among historians that the Holodomor was a deliberate effort by Soviet authorities to exterminate one or more ethnic groups? (www.reddit.com)
How far did wood travel in late Antiquity & the Middle Ages? Was it all very local? My house in the Western U.S. (& much of the stuff in it) includes wood from Brazil, Canada, Europe, New Zealand, etc. (www.reddit.com)
Is there a single natural food source that if you only ate said food source, you wouldn’t get sick or die early because it’s lacking an important nutrient? (www.reddit.com)
AskScience AMA Series: I'm Dr. Gretchen Benedix, a cosmic mineralogist and astrogeologist, and I study space rocks! Currently a Professor at Curtin University, I use the chemistry, mineralogy, and spectroscopy of meteorites to understand the formation and evolution of asteroids and planets. AMA! (www.reddit.com)
Was there ever a conflict between the 18th Amendment (Prohibition) and the 1st Amendment, since Roman Catholics and many Protestants require wine for communion, as do Jews on Passover? Or were there prearranged exceptions to avoid this sort of thing? (www.reddit.com)
In "The Odyssey," how would remarrying have affected Penelope legally, politically, and socially? Could/Would an widow in Ithaca['s equivalent] refuse to remarry for practical, rather than principled/romantic, reasons? (www.reddit.com)
What is the difference between the Buddhist notion of no - self & more contemporary views of personal identity? (www.reddit.com)
Living things have copied their DNA for billions of years, so why do chromosomes age and erode due to copying? (www.reddit.com)
How is Taco Bell able to give out 5000 sauce packets to each customer yet McDonald’s acts like you’ll bankrupt them if you ask for one sauce? (www.reddit.com)
It is often said that Soviet blood, US steel & British intelligence won WW2. To what extent did UK intel influence the Eastern front? (www.reddit.com)
How would you feel if your spouse asks you for a threesome? (www.reddit.com)
During slavery in the USA, were there any slave owners who bought slaves just to give them a better life? (www.reddit.com)
What's something that's getting hard to enjoy/put up with as you get older? (www.reddit.com)
W. E. B. Du Bois saw the issue of lynching in America was aberrant, and that simply explaining to white people that black people were not threats would end it. After seeing Sam Hose's knuckles for sale at Atlanta, he changed his mind. How did this revelation change his opinon and methods? (www.reddit.com)
What are some good things to say to a young girl so she can grow up being able to have strong boundaries? (www.reddit.com)
Those who were someone's first, how is/was the relationship? (www.reddit.com)
"There was a time briefly where Japanese and European firearms were on par, and you could still see other ranged and melee weapons[katanas] on the field." Is this true? Did katanas ever share the same battlefield with firearms? (www.reddit.com)
Did the Allies have our own version of the Tokyo Rose or Lord Haw Haw? If so who were they? Axis defectors or descendants of immigrants? (www.reddit.com)
Wait, so what’s the difference between Semiotics and Semiology again? (www.reddit.com)
Was the Ghost Dance seen as a real threat? Was the religion used as a scapegoat in the aftermath of the Wounded Knee Massacre? (www.reddit.com)
Why is the History of philosophy even important to the academic discipline of philosophy? (www.reddit.com)
Georgia and Uzbekistan had the same population in the 1897 Russian Empire census, but today Uzbekistan has 10 times the population today. What caused this? (www.reddit.com)
Why is “Anglo-Saxon” the predominant cultural descriptor of the English and not any of the other tribal groups? (www.reddit.com)
A Call to Historians Goes Out Across the Land • The /r/AskHistorians Flair Application Thread XXV (www.reddit.com)
I am a wealthy, educated Roman citizen in the first century CE. What am I knowledgeable about? (www.reddit.com)
What do you think is a lie about motherhood you want to warn future mothers about? (www.reddit.com)
Why do drug advertisements exist? Shouldn’t doctors be deciding what gets prescribed to their patients, not the other way around? (www.reddit.com)
Robert Carro's biographies of Lyndon Johnson allege that all state-wide elections in Texas at that time involved quite widespread vote buying & manipulation among disenfranchized latino border areas. When and how did this apparent and consequential election fraud end? (www.reddit.com)
Women who enjoy cooking and/or eat at home at least most of the time, what do you eat? (www.reddit.com)
What is the longest amount of time you have been single for? (www.reddit.com)
How did the incredibly frank views of sex in Medieval Europe end up developing into the Prudish views of the Victorian era? (www.reddit.com)
What would your reaction be if your partner told you “I’ll marry you if you lose weight”? (www.reddit.com)
If an Omnipotent, Omniscient and Omnibenevolent God does not intervene to prevent an evil act, should I intervene? (www.reddit.com)