Re: Model describes universe with no big bang, no beginning, and no end.
 

How can the universe always exist, but we can measure the light as being some 13 billion years old?

Re: Model describes universe with no big bang, no beginning, and no end.
 

But what if you annihilate something with its antimatter equivalent? Where do your "particals" go?

And rocks are not primarily bound by mass and density. Rocks are primarily bound by energy.

Re: Model describes universe with no big bang, no beginning, and no end.
 

Perhaps, sadly I don't have access to my highschool books anymore so I can't check to see what the wrote. :(

Re: Model describes universe with no big bang, no beginning, and no end.
 

So are you. Well you're stating what you've been taught, but this is high school physics and so is not always entirely accurate (read: mostly inaccurate).
You were taught the big bang theory in primary school? (ages 4-7?) In any case, there is no general agreement (due to lack of any evidence or method for testing) on what occurred before the big bang.


I'd say mass is much better understood than gravity. But we're obviously still missing pieces of the puzzle (which, hopefully, confirmation of the existence of the Higgs boson will go some way to filling in).


It depends really. All forces are mediated by particles. For electromagnetism you have the photon (light), for the force that binds particles together you have other particles (depending on the force). There is postulated a "graviton" which is the theorised mediating particle for gravity.

In physics mass is considered the result of a "charge", in the same way electrons have "charge" in electromagnetism, massive particles have "charge" in the Higgs field. So in that sense it is considered a "force" (sort of).


Could you explain what you meant by this?

I think Feynman dealt with the abstract-ness of energy quite well

Re: Model describes universe with no big bang, no beginning, and no end.
 

Light isn't mass and doesn't exist on it's own. Do you judge a flashlights age by how long you turn it on?

Re: Model describes universe with no big bang, no beginning, and no end.
 

If its on all the time, you can tell how old it is by the strength of the light.

Re: Model describes universe with no big bang, no beginning, and no end.
 

You missed his point l think, and if its left on [torch ] all it tells you is the strength of the batteries, not the actual torch, the torch could produce a brighter light beam, if it had more current.anyways yadda yadda yadda.

Yes necro in primary school they taught us about the big bang, although at the time they referred to it as just a huge explosion, no it wasnt bound by complex explanations, lets face it, in its raw form the big bang idea is pretty neat and fits well, even today with everything we know, better than any other idea/theory.
As for the rest of the post l was just being a little philosophical.

In physics mass is considered the result of a "charge", in the same way electrons have "charge" in electromagnetism, massive particles have "charge" in the Higgs field. So in that sense it is considered a "force" (sort of).

yea sort of, and the exact understanding is ?....not perfect perhaps.Was kinda my point in the whole post mate.

Re: Model describes universe with no big bang, no beginning, and no end.
 

[QUOTE=necrosect;5373664]So are you. Well you're stating what you've been taught, but this is high school physics and so is not always entirely accurate (read: mostly inaccurate).






It depends really. All forces are mediated by particles. For electromagnetism you have the photon (light), for the force that binds particles together you have other particles (depending on the force). There is postulated a "graviton" which is the theorised mediating particle for gravity.

Yea so, like l said you cannot pick up and throw gravity.
And again our understanding of it is limited.





Could you explain what you meant by this?

Probably not, but what l meant was, everything was energy, is matter, is mass, is energy, pretty open interpretation, l was being philosophical again sorry.




missed ya post so l tacked it on last sorry .

Re: Model describes universe with no big bang, no beginning, and no end.
 

Your posts smack of condescension on a matter about which you patently have no understanding. While I feel it a responsibility (as a scientist) to attempt to explain matters of science accurately and concisely, where possible, your absolute refusal to ever listen or incorporate anything that doesn't agree with your initial view on a subject puts me at a complete loss. This may have been better served as a private message, but I really can no longer take the time nor effort to respond to any of your posts regarding science or religion as it seems I may as well talk to a brick wall. Painted in lead. Locked in a safe.

Re: Model describes universe with no big bang, no beginning, and no end.
 

l dont either, but, l do remember the class where l first learndededed it !
And l remember what was taught, basically what lve already posted.
Its not about scientific detail and accuracy in primary school or even high school , its about opening young peoples minds to possibilities and exploring other options for a solution.
That lesson teaches so much more than people realize.
It teaches kids, to explore new options, rather than accept the traditional answer, its my generation, the generation before mine, and pretty much all generations after, that really think outside the box.Go science.