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View Ouzo Dan's Profile Ouzo Dan Flag Behind you 07 Dec 17 11.59pm Send a Private Message to Ouzo Dan Add Ouzo Dan as a friend

Originally posted by chateauferret

This is actually true for all elements heavier than nitrogen, and in fact all elements heavier than iron can only be produced in the explosion itself.

Main sequence stars produce energy by fusing hydrogen into helium and by doing so the radiative pressure they create keeps the outer layers of the star "up" and stop it from collapsing under its own mass.

When a star runs out of hydrogen it fuses the helium into carbon. When the helium runs out it fuses carbon into neon. Trouble is the heavier the fuel is the more s*** it is at producing energy because being heavier it requires more energy to shove the atoms together and fuse them. When the neon is all fused into oxygen it uses oxygen and makes silicon. Then it fuses silicon into iron.

Iron is the lightest element which requires more energy to fuse than can be obtained from the fusion so once it starts fusing iron it can't keep the outer layers from collapsing any more. They fall in and the shockwave blows the outer layers away, distributing the heavier elements in the outer layers of the star across space. The explosion also rams atoms together at high energies and allows loose neutrons to be captured and that makes the elements heavier than iron, including gold, lead, silver, and up to uranium. Eventually those atoms become part of interstellar clouds which condense to form new star systems, and some of them will turn up on its planets. Being heavy, much of the material will fall to the centre of a new planet (the Earth's core is substantially iron).

As well as providing us with many raw materials that are only manufactured in supernovae and their progenitors therefore supernovae also provide us with an iron core which is responsible for generating the Earth's magnetic field and without which radiation would reach the surface of the Earth and make it uninhabitable for complex forms of life.

Without supernovae therefore there would be no football.

As a favourite astrophysicist of mine once said "were all made of star stuff".

I've lost my way with Astronomy over the past couple years, hopefully things are changing for the better so i can treat myself to a new reflector.

Edited by Ouzo Dan (08 Dec 2017 12.00am)

 


Sex Panther 60% of the time it works every time

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View stuckinbristol's Profile stuckinbristol Flag In the woodwork. 08 Dec 17 9.15am Send a Private Message to stuckinbristol Add stuckinbristol as a friend

Betelgeuse remains our best hope at seeing a supernova up close & if it does go bang it wont disrupt the earths orbit, we will however have two suns in the sky for about 3 to 4 weeks.

So will it be raining gold a couple of weeks/months/years after this?

 


There's only one P in Palace...and I'm sitting on it.

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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 08 Dec 17 10.00am Send a Private Message to mr. apollo Add mr. apollo as a friend

Space is big. Really big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space.

 


Glad
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Over

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View Andy_G's Profile Andy_G Flag Wimbledon 08 Dec 17 10.31am Send a Private Message to Andy_G Add Andy_G as a friend

I am right with

If the history of the earth was a book the size of the bible, man would only appear on the last page?

 


The ups and downs of Palace have left me older than my years

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View Andy_G's Profile Andy_G Flag Wimbledon 08 Dec 17 10.32am Send a Private Message to Andy_G Add Andy_G as a friend

Originally posted by chateauferret

This is actually true for all elements heavier than nitrogen, and in fact all elements heavier than iron can only be produced in the explosion itself.

Main sequence stars produce energy by fusing hydrogen into helium and by doing so the radiative pressure they create keeps the outer layers of the star "up" and stop it from collapsing under its own mass.

When a star runs out of hydrogen it fuses the helium into carbon. When the helium runs out it fuses carbon into neon. Trouble is the heavier the fuel is the more s*** it is at producing energy because being heavier it requires more energy to shove the atoms together and fuse them. When the neon is all fused into oxygen it uses oxygen and makes silicon. Then it fuses silicon into iron.

Iron is the lightest element which requires more energy to fuse than can be obtained from the fusion so once it starts fusing iron it can't keep the outer layers from collapsing any more. They fall in and the shockwave blows the outer layers away, distributing the heavier elements in the outer layers of the star across space. The explosion also rams atoms together at high energies and allows loose neutrons to be captured and that makes the elements heavier than iron, including gold, lead, silver, and up to uranium. Eventually those atoms become part of interstellar clouds which condense to form new star systems, and some of them will turn up on its planets. Being heavy, much of the material will fall to the centre of a new planet (the Earth's core is substantially iron).

As well as providing us with many raw materials that are only manufactured in supernovae and their progenitors therefore supernovae also provide us with an iron core which is responsible for generating the Earth's magnetic field and without which radiation would reach the surface of the Earth and make it uninhabitable for complex forms of life.

Without supernovae therefore there would be no football.

That my friend is free education.

 


The ups and downs of Palace have left me older than my years

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Yellow Card - User has been warned of conduct on the messageboards View nickgusset's Profile nickgusset Flag Shizzlehurst 08 Dec 17 10.34am Send a Private Message to nickgusset Add nickgusset as a friend

Originally posted by mr. apollo

Space is big. Really big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space.

ford-and-arthur.jpg Attachment: ford-and-arthur.jpg (36.84Kb)

 


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View jamiemartin721's Profile jamiemartin721 Flag Reading 08 Dec 17 10.42am Send a Private Message to jamiemartin721 Add jamiemartin721 as a friend

Originally posted by Andy_G

I am right with

If the history of the earth was a book the size of the bible, man would only appear on the last page?

Probably as a footnote, to the last page. Unless it was a book, written by humans, because humans invented the power of boobs.

 


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View Ouzo Dan's Profile Ouzo Dan Flag Behind you 08 Dec 17 11.04am Send a Private Message to Ouzo Dan Add Ouzo Dan as a friend

Originally posted by stuckinbristol

Betelgeuse remains our best hope at seeing a supernova up close & if it does go bang it wont disrupt the earths orbit, we will however have two suns in the sky for about 3 to 4 weeks.

So will it be raining gold a couple of weeks/months/years after this?

Some of it may we'll find it's way to earth

It's the beauty of E=MC2

 


Sex Panther 60% of the time it works every time

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View collier row eagle's Profile collier row eagle Flag romford essex via another galaxy 08 Dec 17 11.24am Send a Private Message to collier row eagle Holmesdale Online Elite Member Add collier row eagle as a friend

I saw thousands of stars on my journey here from Neptune.

 

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View Southampton_Eagle's Profile Southampton_Eagle Flag At the after party 08 Dec 17 12.24pm Send a Private Message to Southampton_Eagle Add Southampton_Eagle as a friend

Good band, their first album 'Spiders' was immense.

 


BensGrandad: Prior to the cup game v Arsenal there was some posts comparing The Amex and The Emirates and The Amex came out top in every catergory bar the one that matters, the players on the field.

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View Park Road's Profile Park Road Flag 08 Dec 17 1.09pm Send a Private Message to Park Road Add Park Road as a friend

Space is ample

 

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View stuckinbristol's Profile stuckinbristol Flag In the woodwork. 08 Dec 17 1.15pm Send a Private Message to stuckinbristol Add stuckinbristol as a friend

Originally posted by Ouzo Dan

Some of it may we'll find it's way to earth

It's the beauty of E=MC2

Time to invent that heavy duty umbrella then.

Make a hell of a family story mind....

That's a really nice gold ring you have.

Yes, it was made out of a piece of gold that fell from the heavens and hit granddad on the head, killing him instantly.

 


There's only one P in Palace...and I'm sitting on it.

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