Score
Title
270
AskScience Panel of Scientists XVIII
634
AskScience AMA Series: IAmA restoration ecologist focused on restoring oysters to the NY Harbor in New York City. AMA!
5914
How is it so that several (all?) mammals grow and lose a set of "baby teeth" before growing their final dentition? Why stop at two sets when other vertebrates such as sharks regenerate their teeth constantly?
9716
How does a master key work?
10
How does hydrogen embrittlement work?
3
Why does looking at bright things hurt our eyes?
55
If placed in a controlled environment, do trees that normally undergo seasonal leaf Abcission stop losing their leaves?
42
How do our eyes avoid being commonly infected through things like rubbing our eyes or the pollutants in the air?
8
Whats the difference between an explosive, a propellant and an accelerant?
8
Would it be possible to have a ball of electrons?
6
Statistical Regression: Why don't we care about the t-stat / p-value for the intercept term ?
7
How for down into the mantle do we have to go before the temperature is hotter than the surface?
3
Does Ocean Salinity Drop During/After a Rainstorm?
8
Are women born with all their eggs?
27
Do nocturnal animals prefer sleeping conditions that are dimly lit or bright in contrast to humans which prefer dark conditions?
5534
How does sunscreen stop you from getting burnt?
12
Would objects orbiting Earth, such as space debris, satellites, the ISS, be hot or cold to the touch?
12
How can we tell if someone we can’t see is shouting from far away or whispering close to us?
14
[Medicine] What leads a body to reject or accept donated organs?
22
How does a train engine, pulling miles of cars and many tons of load, get enough traction to actually move everything?
12
Why are shadows casted from objects more crisp depending on how far the object is from the ground?
17
How do phones keep cool with small heatsinks and no fans?
47
If the human body has evolved over millions of years to swell up in response to an injury, why are we instructed to apply ice to prevent our evolutionary swelling response?
3
What are public and private keys and what do they do for a server when transferring information?
9
Why don’t we sneeze in our sleep?
1
What is the shape of a transmissions wave? Can this shape be changed? Can motion significantly affect the shape?
24
Studies have shown that small movements in the throat occur during an internal dialogue--does that happen when music plays in your head, too?
1
Are there earthquakes in other planets?
4
How are enzymes like DNA ligase or DNA polymerase created in lab and sold in industrial scales?
5
How is hybrid fruit produced?
7
What is causing this orbiting water droplet in my tea kettle?
7
Are there more cases of depression in modern times than in history?
7
Why is cold weather usually synonymous with pneumonia infections?
4
Are there any videos from NASA or other space agency where they do tests in the vacuum of space? Such as a plant or mice or anything is taken outside of the space shuttle/station
4
Is there an explanation for why we have instances of an irregular body hair?
5
Can rare astronomical phenomena such as solar eclipses or supernovas disrupt biological cycles of living organisms?
3
Is there an upper limit to how fast a fluid can saturate paper through capillary action?
69
Why does sunburnt skin feel hot to the touch?
12
Air molecules travel at 1000 mph. Can we harness that kinetic energy?
8
Why is space and space travel illustrated, for the most part, on a horizontal line? Can't we space travel "upwards" or "downwards" and where would that eventually lead?
2
Why are Neanderthals depicted with dark skin? If they lived in Europe for longer than modern humans, why didn't they also evolve fair skin tone?
2
Could a container or cruise ship cause an orographic/rain shadow effect?
16 thagr8gonzo I assume you're talking about learning a second language after you've already established a dominant first language, referred to as an L1. Research by [Kroll & Stewart, 1994](http://www.pitt.edu/~perfetti/PDF/Kroll%20&%20Stewart.pdf) indicates that the underlying concept for all versions of a given word is stored as a unit, and that retrieval of that particular conceptual unit facilitates word memory in all the languages known by an individual. This word memory is usually funneled through a person's L1. In other words, finding a word in a second, third, etc. language often occurs through accessing the specific word for a concept in a person's L1 then translating it to the other language, even if this process isn't done through conscious effort. A similar thing happens with grammar: a person with an L1 will usually relate grammar in other languages to the corollary grammatical structures in the L1. Noam Chomsky's early work argues for a universal grammar, which asserts that humans possess brain functions specifically adapted for use in language, and that underlie all languages. His theory leans toward the "additive" linguistic model proposed in your question. However, new languages do require the brain to develop new neuronal pathways associated with that language. In that sense, the second language is indeed "separate" because it requires different neuronal pathways than those used for the L1 to be functional. More simply, the answer to your question is both. A lot of the semantics (i.e. word meanings) and grammar for each language are stored separately, but they're constantly interacting, too. The new language is not held in some disassociated network: it interacts with the other languages you know all the time. Nonetheless, it does require a "different" set of pathways to function. It might help to think of the two languages as parallel highways (they basically go to the same places) that have a lot of interchanges between them. As far as the question from /u/Sir_Spaniard is concerned: I'm not aware of any studies like you're looking for and I'm too lazy to research it right now, but I can tell you that personality is largely governed by the frontal cortex of the brain. Maybe that helps you research it yourself. Also, it's a serious area of contention in the linguistic community whether there actually are personality changes that can be attributed to the use of different languages.
3 [deleted] Add on question: I've come to understand that we can formulate different personalities when we speak different languages, what parts of the brain are responsible for this and have there been any studies (for example, looking at different parts of the brain via an MRI while the person jumps around through different conversations in different languages)
2 [deleted] [removed]
16 0 thagr8gonzo I assume you're talking about learning a second language after you've already established a dominant first language, referred to as an L1. Research by [Kroll & Stewart, 1994](http://www.pitt.edu/~perfetti/PDF/Kroll%20&%20Stewart.pdf) indicates that the underlying concept for all versions of a given word is stored as a unit, and that retrieval of that particular conceptual unit facilitates word memory in all the languages known by an individual. This word memory is usually funneled through a person's L1. In other words, finding a word in a second, third, etc. language often occurs through accessing the specific word for a concept in a person's L1 then translating it to the other language, even if this process isn't done through conscious effort. A similar thing happens with grammar: a person with an L1 will usually relate grammar in other languages to the corollary grammatical structures in the L1. Noam Chomsky's early work argues for a universal grammar, which asserts that humans possess brain functions specifically adapted for use in language, and that underlie all languages. His theory leans toward the "additive" linguistic model proposed in your question. However, new languages do require the brain to develop new neuronal pathways associated with that language. In that sense, the second language is indeed "separate" because it requires different neuronal pathways than those used for the L1 to be functional. More simply, the answer to your question is both. A lot of the semantics (i.e. word meanings) and grammar for each language are stored separately, but they're constantly interacting, too. The new language is not held in some disassociated network: it interacts with the other languages you know all the time. Nonetheless, it does require a "different" set of pathways to function. It might help to think of the two languages as parallel highways (they basically go to the same places) that have a lot of interchanges between them. As far as the question from /u/Sir_Spaniard is concerned: I'm not aware of any studies like you're looking for and I'm too lazy to research it right now, but I can tell you that personality is largely governed by the frontal cortex of the brain. Maybe that helps you research it yourself. Also, it's a serious area of contention in the linguistic community whether there actually are personality changes that can be attributed to the use of different languages.
3 0 [deleted] Add on question: I've come to understand that we can formulate different personalities when we speak different languages, what parts of the brain are responsible for this and have there been any studies (for example, looking at different parts of the brain via an MRI while the person jumps around through different conversations in different languages)
2 0 [deleted] [removed]