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    Wonders of the Universe

    Just managed to get around to watching last weeks episode (about elements) and I thought I understood it but I don't.

    From what I understood there are 92 elements in the universe which make up everything. The elements 'come from' Hydrogen, the sun burns hydrogen to make helium, to make other elements it needs to be hotter.

    Think I got that bit.

    Then he said that when a star dies and explodes it is hot enough to create the rest of the elements. (think that's right)

    So when it explodes it fires the elements through the universe? i.e all of the elements that are here are from an exploding star?

    In which case how did the gold get so far underground? and why aren't there pieces of gold (and other elements) landing on earth? (the atmosphere burns them up?)

    May be being thick, and perhaps he did explain it but I just lost the thread at that point

    41 Comments

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    Original Poster

    ham82

    ????????????????????????



    Did you watch the show?

    Perhaps I misunderstood it all?

    In which case how did the gold get so far underground?



    A combination of subduction and the fact that at some point the Earth was a largely molten mass

    didn't watch it, can't follow it!

    I'm watching these now after a recommendation by my chem tutor - Brilliant series, will find the bit and try to help you explain :P

    Star dies > creates elements > dispersed into space > collected by gravity > planets formed

    That was my understanding anyway

    the planets formed from the exploded star, gold and all

    Original Poster

    Ah I see, so when earth formed it was exactly as it is now (with respect to the elements) obviously I know that the landscape/formation is very different

    zurich

    the planets formed from the exploded star, gold and all



    Depends on the Star and how massive.

    as far as i understand the planets formed from a disc of dust and gas that was produced by the exploded star. the planets then gradually grew larger by pulling the dust and gas towards them. the earth then hit another large object and two things were formed, the earth and the moon. later the earth was bombarded by meteorites that gave us our oceans.

    MBeeching

    Star dies creates elements dispersed into space collected by gravity … Star dies > creates elements > dispersed into space > collected by gravity > planets formedThat was my understanding anyway



    Physicist in the making

    You have to consider these exploding stars are from billions and billions of years ago, probably when the earth was forming...

    Original Poster

    So is it possible that at some point in time a star exploded, created a planet much like earth and humans evolved, much like now, lasted a few hundreds of thousands of years and then 'their' sun exploded (like ours will) and there's no remains of them (apart from the new stuff it created when it exploded)

    So a few billion years ago there was a race more advanced than us? Or would we know about that

    Banned

    Sabcho -

    Its theory based. Not fact, No one knows where and how humans came about (well unless you follow a specific hypothesis or religion) so to assume whether there was a race before or after or anywhere else in the universe cannot be guaranteed.

    oraclenet

    Sabcho - Its theory based. Not fact, No one knows where and how humans … Sabcho - Its theory based. Not fact, No one knows where and how humans came about (well unless you follow a specific hypothesis or religion) so to assume whether there was a race before or after or anywhere else in the universe cannot be guaranteed.



    Religion, a belief in a story. I know which theory I subscribe to

    This show is one reason the economy is ****!

    Using license payers money to travel the Worlds most exoctic and expensive countries, only to get there and burp out things like "time moves forwards, not backwards"

    sancho1983

    So a few billion years ago there was a race more advanced than us? Or … So a few billion years ago there was a race more advanced than us? Or would we know about that



    You'd love the History Channel's Ancient Aliens series
    I take it with a pinch of salt as it's too easy to draw possible links to extraterrestrials, but it's definitely interesting stuff.

    The Universe is also a very good series, i've watched most of the five seasons.

    I presume that the show more than funds itself with Blu ray sales, DVD and so on, although I could be wrong.

    But that is all irrelevant because we are living in a computer generated simulation of a world, I was gonna say prove me wrong and I was gonna say the so called experts are baffled anyway and don't really have a clue but that would be unfair, they really don't have a clue.

    The super hard-on collider is at the hub of the whole thing, trust me I know these things. They are currently shooting two hard-ons in opposite directions at almost the speed of light, they don't know why but they are doing it anyway.

    Original Poster

    MBeeching

    You'd love the History Channel's Ancient Aliens series :pI take it with a … You'd love the History Channel's Ancient Aliens series :pI take it with a pinch of salt as it's too easy to draw possible links to extraterrestrials, but it's definitely interesting stuff.The Universe is also a very good series, i've watched most of the five seasons.



    Not saying I necessary believe there was, just find it interesting. And when I say a race more advanced than hours I mean humans, just that they evolved further and further (like we will) until their sun exploded (like ours will)

    oraclenet

    Sabcho - Its theory based. Not fact, No one knows where and how humans … Sabcho - Its theory based. Not fact, No one knows where and how humans came about (well unless you follow a specific hypothesis or religion) so to assume whether there was a race before or after or anywhere else in the universe cannot be guaranteed.



    it's a scientific theory based based on huge amounts of evidence. there are a few things are are not well understood but how humans came about is not one them.


    sancho1983

    So is it possible that at some point in time a star exploded, created a … So is it possible that at some point in time a star exploded, created a planet much like earth and humans evolved, much like now, lasted a few hundreds of thousands of years and then 'their' sun exploded (like ours will) and there's no remains of them (apart from the new stuff it created when it exploded) So a few billion years ago there was a race more advanced than us? Or would we know about that



    it's a possibility, though i'd say it's pretty unlikely. the universe is 13.5 billion years old and the earth is 4.5 billion, and certainly not every star system contains life, the current guess is that it's quite rare.

    Melted sinks like our earths iron core.

    I watched a science programme a couple of months ago and apparently the newest theory is that we are a hologram on the event horizon of a black hole, weird.

    sancho1983

    Not saying I necessary believe there was, just find it interesting. And … Not saying I necessary believe there was, just find it interesting. And when I say a race more advanced than hours I mean humans, just that they evolved further and further (like we will) until their sun exploded (like ours will)



    I'm on the fence too, but the programme explores the evidence that we were visited by advanced civilisations by looking at intriguing places and artefacts.
    I just hope that some form of communication is established in my lifetime
    Edited by: "MBeeching" 21st Mar 2011

    Surprised there's been no jehova's in here yet ...

    Gold is a naturally occurring element (element symbol Au, atomic number 79), that is created in nature e.g. during supernovae explosions of type II.

    It also has been created in amounts of a several atoms by nuclear transmutation, but it cannot be "created" or "destroyed" in the classical sense of chemistry.
    On earth, gold is found mostly in solid form in veins in siliceous rocks. By alteration, it can be eroded and placed in form of powder, granules or nuggets in the riverbeds. Low concentrations of dissolved gold can also be found in the sea.Occurrence in nature
    Gold occurs in nature in both its native state and in compounds. The native state of an element is its free state. It is not combined with any other element. The most common compounds of gold are the tellurides. A telluride is a compound of the element tellurium and one or more other elements.
    At one time, gold was found in chunks or nuggets large enough to see. People mined gold by picking it out of streams and rivers. In fact, gold was once very common in some parts of the world. People valued it not because it was rare, but because it was so beautiful.
    The abundance of gold in the Earth's crust is estimated to be about 0.005 parts per million. That makes it one of the ten rarest elements in the Earth's crust. Gold is thought to be much more common in the oceans. Some people believe as much as 70 million tons of gold are dissolved in seawater. They also think there may be another 10 billion tons on the bottom of the oceans. So far, however, no one has found a way to mine this gold.
    About a quarter of the world's gold comes from South Africa. Other leading producers of the metal are the United States, Australia, Canada, China, and Russia. In the United States, about two-thirds of its gold is mined in Nevada. California, Montana, Alaska, and South Dakota also produce gold.

    Banned

    Wow, it's like no one invented schools.

    sancho1983

    Ah I see, so when earth formed it was exactly as it is now (with respect … Ah I see, so when earth formed it was exactly as it is now (with respect to the elements) obviously I know that the landscape/formation is very different


    Yes ..and ..no.
    As I understand it, our solar system is formed from the elements made by other stars/suns; with elements, up to iron, being made by fusion in the earliest stars and then the heavier elements coming from super novae of later stars.
    Our solar system was made by the coalescence of clouds of elements, due to gravitational forces. Most of the hydrogen and helium was blown away by solar winds as our planet was forming. Our planet has a structure of iron/nickel core and then layers of mantle and crust. The accumulations of metals like gold in the crust and the development of the crust over time is due to geomorphological processes, like the movement of tectonic plates and physio-chemical processes, like diffusion and crystallisation.

    The ‘no’ bit in my answer was in regard to radioactive decay of isotopes of many of the atoms that would have been present in the original dust and indeed, now-a-days

    I am not very expert in those aspects of science. You could do with having jah in here to explain better.

    However, I am pretty expert in evolution… and there is no such thing as ‘more evolved’ or a certainty that we will 'evolve further'!

    Original Poster

    chesso

    However, I am pretty expert in evolution… and there is no such thing as ‘ … However, I am pretty expert in evolution… and there is no such thing as ‘more evolved’ or a certainty that we will 'evolve further'!



    I perhaps used a poor choice of words, I didn't necessarily mean evolve physically, I more meant technological advances, flying cars running on rain water and the such

    TUSSFC

    Surprised there's been no jehova's in here yet ...



    http://www.dvdbeaver.com/film/Reviews/shin/heres%20johnny.jpg

    chesso

    However, I am pretty expert in evolution… and there is no such thing as ‘ … However, I am pretty expert in evolution… and there is no such thing as ‘more evolved’ or a certainty that we will 'evolve further'!



    Of course we will, in another thousand years babies will be born with a usb port (just 1.0 to start with) and politicians will evolve so much that they will have to wear underpants on their heads.

    Banned

    mr.potato_head

    This show is one reason the economy is ****!Using license payers money to … This show is one reason the economy is ****!Using license payers money to travel the Worlds most exoctic and expensive countries, only to get there and burp out things like "time moves forwards, not backwards"


    The BBC makes a large profit from shows like these actually as most countries buy it, not to mention dvd sales etc

    A hdmi baby, that would be interesting. Although I jokingly mentioned us living in a simulated world or digital world in a previous post its really not a much of a joke. I half watch stuff so don't quote me on any of it, I think I remember watching a show and basically they explained that in a digital TV picture say HD you can zoom into a single pixel, apparently there is the equivalent on earth, well of course there is as you can zoom into a single particle or whatever. So I have came to the conclusion that we are running in a sim and running 10,000p - DD.

    We are an alien child's toy that he will soon get bored of and pull the plug on us, as he gets older he will wipe us of his galactic hard drive and replace it with 8d futuristic pornographic material, the end.

    BlinneOrlaith

    We are an alien child's toy that he will soon get bored of and pull the … We are an alien child's toy that he will soon get bored of and pull the plug on us, as he gets older he will wipe us of his galactic hard drive and replace it with 8d futuristic pornographic material, the end.



    2 blobs, one receptacle?

    BlinneOrlaith

    A hdmi baby, that would be interesting. Although I jokingly mentioned us … A hdmi baby, that would be interesting. Although I jokingly mentioned us living in a simulated world or digital world in a previous post its really not a much of a joke. I half watch stuff so don't quote me on any of it, I think I remember watching a show and basically they explained that in a digital TV picture say HD you can zoom into a single pixel, apparently there is the equivalent on earth, well of course there is as you can zoom into a single particle or whatever. So I have came to the conclusion that we are running in a sim and running 10,000p - DD.We are an alien child's toy that he will soon get bored of and pull the plug on us, as he gets older he will wipe us of his galactic hard drive and replace it with 8d futuristic pornographic material, the end.




    Wow....ever the optomist then

    Well the beauty of it is that no one really knows what is going on so therefore it is open to interpretation, it is just far too huge (The universe) for us to ever understand what it is really all about. I am not saying experts are clueless but I would say the amount of things we don't know about the universe (Or universes) way outnumbers what we do know. But again who knows?

    Simulism, that's it, so there is actually a term for it and website. I am sure a lot of this came about after the Matrix although cant say I was ever a big fan of the films, Truman show, now that's a film, something like that on a grand scale, is is quite possible that we are just a smarter beings form of entertainment, or of course maybe we don't want to face the fact that we are just a boring "Just there" and created out of nothing, well we will never know.

    I'm sticking with the sim world, that is what it is, untill the boyo Hawking proves me wrong

    BlinneOrlaith

    Well the beauty of it is that no one really knows what is going on so … Well the beauty of it is that no one really knows what is going on so therefore it is open to interpretation, it is just far too huge (The universe) for us to ever understand what it is really all about. I am not saying experts are clueless but I would say the amount of things we don't know about the universe (Or universes) way outnumbers what we do know. But again who knows?Simulism, that's it, so there is actually a term for it and website. I am sure a lot of this came about after the Matrix although cant say I was ever a big fan of the films, Truman show, now that's a film, something like that on a grand scale, is is quite possible that we are just a smarter beings form of entertainment, or of course maybe we don't want to face the fact that we are just a boring "Just there" and created out of nothing, well we will never know.I'm sticking with the sim world, that is what it is, untill the boyo Hawking proves me wrong




    Simulism....well you live and learn, even at my age!

    In my book, otherwise known as fantasy.

    Nothing wrong with that...each to his own X)

    Don't worry lol you are only as old as you feel, I'm 30 and feel like I'm fifty, I make noises now when I bend over, its a slippery slope from here

    There are scientists that do believe or think its plausible that we do indeed live in a Sim, it is open for debate. I wouldn't call it fantasy because no one really knows for sure.

    Here is an interesting read on it :

    cow.neondragon.net/stu…on/

    There are loads of articles round the web now

    BlinneOrlaith

    Don't worry lol you are only as old as you feel, I'm 30 and feel like I'm … Don't worry lol you are only as old as you feel, I'm 30 and feel like I'm fifty, I make noises now when I bend over, its a slippery slope from here :)There are scientists that do believe or think its plausible that we do indeed live in a Sim, it is open for debate. I wouldn't call it fantasy because no one really knows for sure.Here is an interesting read on it :http://cow.neondragon.net/stuff/simulation/There are loads of articles round the web now



    Thanks.

    There are loads of articles round the web about a lot of stuff I don't believe in (e.g religion).

    Personally I think fantasy sounds much better. Simulism sounds like psuedo science, trying to be something it's not


    Sure if we agreed on everything it would be a boring simulated world wouldn't it?

    If it is impossible to disprove the theory that we are living in a simulated universe then I don't think that makes it a fantasy.

    I am not saying that is what I believe either but will certainly always keep an open mind, and this is why I have an interest in the subject because it is open for debate.

    Also it is not a pseudoscience as it is a plausible theory.

    So yes we are not going to agree on this one, but I like beer do you like beer?

    Banned

    No one knows how humans came about.
    Evidence has not been proven otherwise.
    E=MC2 is a theory. Not fact.
    End/\/\/\/\
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