Originally posted by Mr Whippy
quote:
Originally posted by 02GF74
2. sun energy E=MC2 being converted to mass?
dude thats the sun getting lighter not the earth...
heavier because
1. outerspace garbage e.g. comets, meteors landing on the earth
2. sun energy E=MC2 being converted to mass
lighter because
1. the atmosphere is being stripped off
2. heat energy radiated, again E=MC2
3. satellites being fired into space
so what is the net result? heavier or lighter?
Heavier due to Kerry Katona
quote:
Originally posted by 02GF74
2. sun energy E=MC2 being converted to mass?
and its converting mass into energy not the other way round. quote:
Originally posted by Mr Whippy
quote:
Originally posted by 02GF74
2. sun energy E=MC2 being converted to mass?
dude thats the sun getting lighter not the earth...
quote:
Originally posted by 02GF74
quote:
Originally posted by Mr Whippy
quote:
Originally posted by 02GF74
2. sun energy E=MC2 being converted to mass?
dude thats the sun getting lighter not the earth...
mass we know can be converted to energy - atomic bomb but it can go the other way
[Edited on 7/11/08 by 02GF74]
quote:
Originally posted by 02GF74
quote:
Originally posted by Mr Whippy
quote:
Originally posted by 02GF74
2. sun energy E=MC2 being converted to mass?
dude thats the sun getting lighter not the earth...
mass we know can be converted to energy - atomic bomb but it can go the other way
[Edited on 7/11/08 by 02GF74]
Time how long it takes to orbit the sun and it should tell you!
So the question should be is a year getting longer or shorter???!!
Lol 
quote:
Originally posted by R1minimagic
Time how long it takes to orbit the sun and it should tell you!
So the question should be is a year getting longer or shorter???!!
Lol
I think you mean the other way around!
Shouldnt the solar wind and suns magnetic field be relatively constant over a year time period?
If we all aim our hairdryer at the sun than we might be able to blast the earth to another orbit! 
quote:
Originally posted by R1minimagic
I think you mean the other way around!
Shouldnt the solar wind and suns magnetic field be relatively constant over a year time period?
quote:
If we all aim our hairdryer at the sun than we might be able to blast the earth to another orbit!
quote:
Originally posted by R1minimagic
I think you mean the other way around!
Argh... my head hurts!
Can't we just go back to discussing whether there is a place for BEC's in modern society... I was in my comfort zone then!
quote:
Originally posted by Mr Whippy
not on the sun, it just destroys the hydrogen atoms turning them into heat and light. The suns just a hydrogen bomb really, it's own weight stops the core (very small) from blowing it apart.
quote:
Originally posted by scootz
Can't we just go back to discussing whether there is a place for BEC's in modern society... I was in my comfort zone then!
quote:
Originally posted by Rob Palin
quote:
Originally posted by Mr Whippy
not on the sun, it just destroys the hydrogen atoms turning them into heat and light. The suns just a hydrogen bomb really, it's own weight stops the core (very small) from blowing it apart.
Nothing gets "destroyed", the Hydrogen gets fused together to form Helium. If our sun was a bigger star it would be able to fuse those Helium nuclei together to form heavier elements too. None of the original particles are actually lost, its just the binding energy that changes and that's where the mass change appears (and what is radiated out as heat & light).
Ok, is this right?
the solar wind is slowing the speed the earth moves at, but part of the force exerted will be pushing the earth into a wider orbit, therefore
increasing the distance it travels, so the compound effect is increased leading to longer years?
Can you tell I have a peice of work I dont want to do this afternoon?
On a complete side point (and the mention of magnetic fields) did anyone else watch the program about the earths magnetic poles flipping? It was very
interesting. Was on a fair few weeks ago - but was amazing!
quote:
Originally posted by Mr Whippy
quote:
Originally posted by R1minimagic
I think you mean the other way around!
Shouldnt the solar wind and suns magnetic field be relatively constant over a year time period?
No, it’s the same for satellites, in a low orbit they slow down due to atmospheric drag and then years later (or less) burn up. The earth has the same problem, its moving in a very thin gas emitted by the sun (solar wind). This causes a shock wave in front of the earth which gradually slows it down (takes billions of years like...) same thing happens with the magnetic field and the two are linked anyway.
For the earth to move away from the sun it needs to go faster, like a rocket needs to be more powerful to travel in a higher orbit. Slow down and it falls back to what ever it was orbiting, planet, sun...whatever.
The suns output varies up and down over 11 years, it’s famous sunspot cycle due to the suns magnet field flipping over.
[Edited on 7/11/08 by Mr Whippy]
If it is just a fusing reaction of hydrogen, where do the neutrons and radioactivity come from??!!
And particles (mass) are lost from the sun, that is where the solar wind comes from!!
Friday afternoons are great for this sort of discussion, just wish i had some beer at work!!
[Edited on 7/11/08 by R1minimagic]
the earth is trying to fling itself off in to space ( can't quite remember the equatiion but newton's second law F=ma f=force m= mass of the
earth a is the acceleration usually in radians/second but for the rotion around the sun radians per day?)
BUT>>>>
there is a gravational force of attraction between the sun and the earth
F=G Msun x Mearth/r^2
r is the distance between the sun and the earth G is the gravational constant
these 2 forces must equal each other (nearly anyway )
the other planet in the solar system will exert some gravational forces on the earth as they pass nearby
so the earth stays in a reasonably constant orbit, it actually wobbles around the sun.
if the solar 'wind' was slowing us down
the solar wind must have some effect but this must but minimal. if there was a large effect the earth would slow down more than the moon ( the moon
being alot smaller) and the moon would drift off into space!
You were listening to radio 5 live in the early hours of this morning.
The answer is/was heavier.
The only thing I know for sure is that the Earth's gravitational pull is getting stronger - well , according to my bathroom scales it is
quote:
Originally posted by R1minimagic
If it is just a fusing reaction of hydrogen, where do the neutrons and radioactivity come from??!!
quote:
Originally posted by jollygreengiant
You were listening to radio 5 live in the early hours of this morning.
The answer is/was heavier.
quote:
Originally posted by scootz
Argh... my head hurts!
Can't we just go back to discussing whether there is a place for BEC's in modern society... I was in my comfort zone then!
didn't bother reading the rest, its not getting heavier or lighter. objects in space are weightless. things only weigh something on earth because
of gravity, soooo 2 ways of thinking of it,
1) there is no gravity in space, so it has no weight
2) if you insist it does weigh something, it will weight equally in all directions, cancelling out, resulting in 0 gravity
The question shouldhave been -
Is the earths Mass increasing..
However the earth does have weight due to the fact that it sits within the suns gravitational fied and as
Weight = mass * gravitational field strenght
and the mass oth the earth is increasing it weight will also.
Paul
The Earth must be increasing in size or the stuff archaeologists dig up would still be on the top if it wasn't. What I want to know is who buries all that stuff anyway?
quote:
Originally posted by 02GF74
Can't rememebr if days are getting longer too or not. (re: spin on axis).
am sure that the year is getting longer, In the Devonian Era i think it was something like 210 days long rather than 364 it is now.
As the Earth slows down than it will spiral in closer to the sun. Will take a long time to happen tho.
As for the Earth getting heavier/lighter i am sure that i read somewhere that approx 300 tonnes of space dust and metorites are scooped up every day
so i would say its getting heavier