"Conservation of Energy" in our reality?
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15-09-2013, 06:08 PM
RE: "Conservation of Energy" in our reality?
Star go all dim... shiny power all gone away.

I won't slave for beggar's pay, likewise gold and jewels,
But I would slave to learn the way to sink your ship of fools
. - The Grateful Dead
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17-09-2013, 07:18 AM
RE: "Conservation of Energy" in our reality?
Again, thanks for the comments guys.

When a star is forming [initially], . . . what elements are present?
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17-09-2013, 07:59 AM
RE: "Conservation of Energy" in our reality?
(17-09-2013 07:18 AM)DeavonReye Wrote:  Again, thanks for the comments guys.

When a star is forming [initially], . . . what elements are present?

It depends on the environment, which depends on when in the life of the universe the star formation is occurring.

The first stars could only consist of hydrogen, helium, and lithium because that's all there was.

Later stars will form from whatever is in that cloud, which might include heavy elements forged in previous generations of stars.
But it will still be primarily hydrogen as that is the most plentiful element.

Skepticism is not a position; it is an approach to claims.
Science is not a subject, but a method.
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17-09-2013, 09:20 AM
RE: "Conservation of Energy" in our reality?
Okay, I can see that.
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18-09-2013, 08:52 AM
RE: "Conservation of Energy" in our reality?
(13-09-2013 02:38 PM)PoolBoyG Wrote:  My thoughts on this. Feel free to correct me. Please do:

You have a 10lb log. You burn it. You only have 1lb of ash. Did the other 9lb disappear? Well, no. If the smoke, variouses gases, photons, radiation, etc released from it were recaptured, you'd have the original 10lb.

So, stars create new elements from their original handful of elements that composed the star. So, where did the stars original "stuff" come from? All the original matter originated from the Big Bang. That matter condensed into stars, exploded, and condescended into new stars again. And so on...

SO, do those photons, and radiation eventually condense back into matter again? Can someone answer this? If not, then there's only so long the Universe can last before it's "pure energy". Stars and planets have nothing to be formed from.

Also note, that apparently, elements break down and "die". Which means they just end up as wayward energy (single and loose electrons, protons?)

There will be no 'pure energy' state. Only a small portion of the mass of stars is converted into light energy. There will always be particles of matter around unless the universe ceases to exist.

The light energy doesn't condense into matter. It will travel through space until it is absorbed, perhaps to supply the required energy to form a sugar in photosynthesis, or to force an electron out of it's position inside a nucleotide causing a mutation.

It's not permanent but photons can produce particle antiparticle pairs (virtual particles in a process known as pair production). So the light energy from the sun potentially does take on particle form in it's journey through space but only for very short periods.

2.5 billion seconds total
1.67 billion seconds conscious

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