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I don't mean just autistic people, but all humans in general (we swing babies, swing on playground swings, and rock on chairs). I suppose autism exacerbates the feeling somehow, and so they do it more often. But I what to know what happens inside a normal brain that makes us feel different. OsmanRF34 ( talk) 02:25, 13 February 2014 (UTC)
The term I found on pubmed is "spontaneous social rocking", and there's a suggestion that autistic children do it more than do other children. [1] It's easy to confound a lot of different things going on here though. Some aspects of rhythm have evolutionary roots, obviously across the animal kingdom, but also in humans ( this one's especially on point).
There's a lot of related literature on music and the obvious importance of rhythm. That's a huge subject on its own with a lot of theories about why it happens. There's discussion of this in evolutionary musicology. This one too.
I'm having trouble quickly finding things specifically about physical rocking though. This seems (I don't have access to the full article) to suggest there's some primitive neurological basis to perform/enjoy rhythmic movements, at least I think that's its claim. Shadowjams ( talk) 05:24, 13 February 2014 (UTC)
If I remember correctly, this topic is covered in an excellent book on human brain development titled "What's Going On In There?". 12.217.87.18 ( talk) 14:28, 13 February 2014 (UTC)
Yesterday, scientists in Australia announced that they had identified the oldest star yet found, SMSS J031300.36-670839.3. It is in the Milky Way, approximately 6,000 light years away. It is about 13.6 billion years old.
If we are seeing light that is only 6,000 years old, how can it have come from this star, which is supposedly 13.6 billion years old? I doubt they are saying that the star existed from soon after the Big Bang until 6,000 years ago, so how can this be explained? Honeyman2010 ( talk) 05:52, 13 February 2014 (UTC)
Thanks for your answer. The article I read was brief and did not explain that this was perhaps a red dwarf or something similar, which I know can theoretically live for trillions of years or longer. Honeyman2010 ( talk) 07:02, 13 February 2014 (UTC)
μηδείς ( talk) 03:57, 16 February 2014 (UTC)A red dwarf is a small and relatively cool star on the main sequence, either late K or M spectral type. Red dwarfs range in mass from a low of 0.075 solar masses (the upper limit for a brown dwarf) to about 50% of the Sun and have a surface temperature of less than 4,000 K.
Red dwarfs are by far the most common type of star in the Milky Way galaxy, at least in the neighborhood of the Sun, but due to their low luminosity, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye. [1] Proxima Centauri, the nearest star to the Sun, is a red dwarf (Type M5, apparent magnitude 11.05), as are twenty of the next thirty nearest.
According to some estimates, red dwarfs make up three-quarters of the stars in our galaxy. [2]
Stellar models indicate that red dwarfs with less than 35% of the Sun's mass are fully convective. [3] Hence the helium produced by the thermonuclear fusion of hydrogen is constantly remixed throughout the star, avoiding a buildup at the core. Red dwarfs therefore develop very slowly, having a constant luminosity and spectral type for, in theory, some trillions of years, until their fuel is depleted. Because of the comparatively short age of the universe, no red dwarfs of advanced evolutionary stages exist.It won't be visible from another galaxy.
on a cyllinder of iron brass metal is perforated of 1mm thicness in niddle shape and above it foam is coated and on the upper most part of cyllinder onther insulation is made .if it is placed in a room where petrolium catches fire then will brass melt or not08:15, 13 February 2014 (UTC)~ — Preceding unsigned comment added by 203.197.118.97 ( talk)
Is this real: Exchange spring magnet? Searching for the phrase finds hits, but the page. Ouch. I can't tell if it's just poor English, or a joke. The person who wrote that page even created and added illustrations! Ariel. ( talk) 19:49, 13 February 2014 (UTC)
Two people who have done a lot of work on the Magnetic field article are User:TStein and User:RockMagnetist. I'll see if they will have a look at it. Richerman (talk) 22:25, 14 February 2014 (UTC)
When studying a year long science related course, is it better to do practice questions throughout as you study topics or is it sufficient to understand all topics then do practice questions at the end of the year? 82.40.46.182 ( talk) 23:51, 13 February 2014 (UTC)
Science desk | ||
---|---|---|
< February 12 | << Jan | February | Mar >> | February 14 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
I don't mean just autistic people, but all humans in general (we swing babies, swing on playground swings, and rock on chairs). I suppose autism exacerbates the feeling somehow, and so they do it more often. But I what to know what happens inside a normal brain that makes us feel different. OsmanRF34 ( talk) 02:25, 13 February 2014 (UTC)
The term I found on pubmed is "spontaneous social rocking", and there's a suggestion that autistic children do it more than do other children. [1] It's easy to confound a lot of different things going on here though. Some aspects of rhythm have evolutionary roots, obviously across the animal kingdom, but also in humans ( this one's especially on point).
There's a lot of related literature on music and the obvious importance of rhythm. That's a huge subject on its own with a lot of theories about why it happens. There's discussion of this in evolutionary musicology. This one too.
I'm having trouble quickly finding things specifically about physical rocking though. This seems (I don't have access to the full article) to suggest there's some primitive neurological basis to perform/enjoy rhythmic movements, at least I think that's its claim. Shadowjams ( talk) 05:24, 13 February 2014 (UTC)
If I remember correctly, this topic is covered in an excellent book on human brain development titled "What's Going On In There?". 12.217.87.18 ( talk) 14:28, 13 February 2014 (UTC)
Yesterday, scientists in Australia announced that they had identified the oldest star yet found, SMSS J031300.36-670839.3. It is in the Milky Way, approximately 6,000 light years away. It is about 13.6 billion years old.
If we are seeing light that is only 6,000 years old, how can it have come from this star, which is supposedly 13.6 billion years old? I doubt they are saying that the star existed from soon after the Big Bang until 6,000 years ago, so how can this be explained? Honeyman2010 ( talk) 05:52, 13 February 2014 (UTC)
Thanks for your answer. The article I read was brief and did not explain that this was perhaps a red dwarf or something similar, which I know can theoretically live for trillions of years or longer. Honeyman2010 ( talk) 07:02, 13 February 2014 (UTC)
μηδείς ( talk) 03:57, 16 February 2014 (UTC)A red dwarf is a small and relatively cool star on the main sequence, either late K or M spectral type. Red dwarfs range in mass from a low of 0.075 solar masses (the upper limit for a brown dwarf) to about 50% of the Sun and have a surface temperature of less than 4,000 K.
Red dwarfs are by far the most common type of star in the Milky Way galaxy, at least in the neighborhood of the Sun, but due to their low luminosity, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye. [1] Proxima Centauri, the nearest star to the Sun, is a red dwarf (Type M5, apparent magnitude 11.05), as are twenty of the next thirty nearest.
According to some estimates, red dwarfs make up three-quarters of the stars in our galaxy. [2]
Stellar models indicate that red dwarfs with less than 35% of the Sun's mass are fully convective. [3] Hence the helium produced by the thermonuclear fusion of hydrogen is constantly remixed throughout the star, avoiding a buildup at the core. Red dwarfs therefore develop very slowly, having a constant luminosity and spectral type for, in theory, some trillions of years, until their fuel is depleted. Because of the comparatively short age of the universe, no red dwarfs of advanced evolutionary stages exist.It won't be visible from another galaxy.
on a cyllinder of iron brass metal is perforated of 1mm thicness in niddle shape and above it foam is coated and on the upper most part of cyllinder onther insulation is made .if it is placed in a room where petrolium catches fire then will brass melt or not08:15, 13 February 2014 (UTC)~ — Preceding unsigned comment added by 203.197.118.97 ( talk)
Is this real: Exchange spring magnet? Searching for the phrase finds hits, but the page. Ouch. I can't tell if it's just poor English, or a joke. The person who wrote that page even created and added illustrations! Ariel. ( talk) 19:49, 13 February 2014 (UTC)
Two people who have done a lot of work on the Magnetic field article are User:TStein and User:RockMagnetist. I'll see if they will have a look at it. Richerman (talk) 22:25, 14 February 2014 (UTC)
When studying a year long science related course, is it better to do practice questions throughout as you study topics or is it sufficient to understand all topics then do practice questions at the end of the year? 82.40.46.182 ( talk) 23:51, 13 February 2014 (UTC)