Hey, someone of you saw the meteor ? i don't live in Ameica and i saw it only in TV and internet
http://www.cbsnews.c...diana-michigan/
That's fairly close to me, but it was cloudy and rainy last night, so I missed it.
Posted 07 February 2017 - 04:17 PM
Hey, someone of you saw the meteor ? i don't live in Ameica and i saw it only in TV and internet
http://www.cbsnews.c...diana-michigan/
Posted 07 February 2017 - 07:49 PM
Posted 09 February 2017 - 12:57 AM
Before the big bang:
The force of gravity outweighs the strong/weak/electromagnetic forces (since all matter exists at a singularity)
At that density, matter paradoxically occupies volume smaller than it's frequency
One current concept treats this state like black hole singularities
Very shortly afterward(10^-34 seconds), the universe expanded and was hot (10^32 degrees C), but forces fell in line with how we understand them using modern physics.
Before that point, we lose the ability to predict previous states of matter (we have no 'information') and physics equations break down.
Based on the discovery and observation of gravity waves, time progresses slightly faster/slower across distances in a way that does not depend predominantly on gravitation.
I interpret that phenomena as time (the progression of interactions between information involving certain levels of energy) having a 'real' component and an 'imaginary' component (though this may not line up with Hawking's imaginary time/Wick transform math approach). Another way to think about it is that time has a constant component and a variational component. I propose that constant time approaches 0 before the big bang and that the variational component dominates the action of 'matter' in a way that manifests as the matter occupying a very small space simultaneously to an observer, but actually the matter present at any moment is partially in the past and partially in the future, simultaneously. In quantum electrodynamics, the Feynman path integral takes interactions between particles before and after the current time into consideration. For example, the energy governing a photon and electron collision has some contributions based on their state before and after the current time. If that is extended to the big bang singularity, where matter at that state is basically pure energy most of the time, I think it's reasonable for QED interactions to be applied and energy contributions to be applicable much further into the current past and future. The tipping point where the Universe begins to expand happens once the entropic contributions to matter rearranging outweigh the conversion back to other forms of energy.
My ideas about what energy and entropy are start to become purely philosophical so I'll leave it at that. What do you guys think? The math gets all spectral-dominant and I believe it could be studied by wavelet decomposition and Monte Carlo methods, but who knows?
Also THIS
Edited by peteandwally, 09 February 2017 - 01:08 AM.
Posted 17 February 2017 - 02:26 PM
Posted 18 February 2017 - 02:35 AM
Astronomy: is alot like a Zelda classic script - if you have everything out of the right order it won't function right or not at all, in all your editors, thus is the reason we have certain planets or odd chemical structures in space - being in located near certain set locations that work to support life like nodes in order for certain 'various shelves of life' to survive evolve and thrive.
The moon simply being one of these examples. Without it, what would happen to the earth?
would the tides possibly rise? ..also without the sun the earth would simply be reduced too an ice planet or never even be, in the first place.
Would the earth still even be here surviving if we simply oneday 'lost' our sun?
Space is constantly expanding 'by our standards' ~ outside it too other beings, the blink of an eye possibly, to their own standards.
When our standards change - then we may finally reach beyond the heavens and all our stressed limits.
(Emphasis, mine.)
This is an interesting cosmological question, that I did in fact explore in a storytelling session. In the scenario, a star was removed from its solar system--the means, purely fictional. My judgement, was that the sudden lack of gravity in a location, would cause an inversion in the warping of space, that immediately disrupted the orbits of every solar body.
Further, this generated a velocity alteration of each body, and a shift in the distance between bodies. The overall result was not pretty, but I'm not certain if we have any mathematical model that could predict what might occur in reality, should that occur. Simply removing that much mass, and replacing it with empty space, is beyond our ability; and may not be possible in any physics model, but if it were, it would require spacefolding, or additional dimensions of motion, to accomplish.
-------------
Overall, I am far more intellectually interested in cosmology, and in physics--particularly extensions to general relativity, and quantum mechanics; but astronomy is certainly gorgeous. The aspect of astronomy that gives me mental goose pimples, is exoplanetary study.
--Just noticed that I quoted a post from February, 2015; not 2017.
Edited by ZoriaRPG, 18 February 2017 - 02:40 AM.
Posted 18 February 2017 - 02:57 PM
(Emphasis, mine.)
This is an interesting cosmological question, that I did in fact explore in a storytelling session. In the scenario, a star was removed from its solar system--the means, purely fictional. My judgement, was that the sudden lack of gravity in a location, would cause an inversion in the warping of space, that immediately disrupted the orbits of every solar body.
Further, this generated a velocity alteration of each body, and a shift in the distance between bodies. The overall result was not pretty, but I'm not certain if we have any mathematical model that could predict what might occur in reality, should that occur. Simply removing that much mass, and replacing it with empty space, is beyond our ability; and may not be possible in any physics model, but if it were, it would require spacefolding, or additional dimensions of motion, to accomplish.
-------------
Overall, I am far more intellectually interested in cosmology, and in physics--particularly extensions to general relativity, and quantum mechanics; but astronomy is certainly gorgeous. The aspect of astronomy that gives me mental goose pimples, is exoplanetary study.
--Just noticed that I quoted a post from February, 2015; not 2017.
is a scenario that cannot become realty, but if this is should happend in the solar system what will happend ? i think that gravity of Jupiter and Saturn will start to force the smallest planet to orbit around its and turn it in a small, cold, binary system ? or maybe all the 4 biggest planet will clash ?
Posted 20 February 2017 - 11:50 AM
Here's what would happen.....
Each solar system has a central mass that pulls on the orbiting bodies keeps a balance of gravity vs. centrifugal motion.
Take for instance a ball on a string tied to a pole.
*Lets say the pole does not have a swivel that the string is tied to, what happens? Well, the string acts as the tie "gravity" of the pole and there is not sufficient orbital force applied "not thrown hard enough", it increases the amount of "gravity". Gravity wins and the ball is pulled in and eventually collides with the pole.
*Now, lets place a swivel on that pole and "throw" the ball harder, what happens? What we get is a balance of gravity vs. Centrifugal force. The ball orbits the pole on a constant distance from the pole. The swivel acts as a balance between gravity and Centrifugal force.
*Finally, let's use a thinner string to tie to the pole with the swivel, What happens? What we get here is the ball will travel to the end of the string and since the string is not thick enough to counteract the outward force of Centrifugal force, doubling it's outward force. Centrifugal force wins and the string snaps and the ball goes flying off.
The final scenario is what you would see if you take a Solar mass out of any system and remove its gravitational effect on the orbiting bodies.
The bodies will continue there motion, but with the sudden absence of the gravimetric force, they fly off into the cosmos to become rogue worlds.
In the space that is left after the solar mass is removed, gravity will ripple in and back out much like the ripple of water when you drop something in it.
That being said, I really am enjoying reading the discussions here.
I tried starting something like this years ago on here. I am glad to see it was revived.
FYI, I am an astrophysicist at heart.
Edited by Rocksfan13, 20 February 2017 - 12:05 PM.
Posted 20 April 2017 - 04:05 PM
i bet you already hear this news, but what you guys think about this ?
https://saturn.jpl.n...r-solar-system/
Posted 06 June 2017 - 09:56 AM
i bet you already hear this news, but what you guys think about this ?
THAT is awesome.
Posted 17 August 2017 - 04:34 PM
Ready fo the sun Eclipse of the 21 August ? unfortunately for me, is not visible in my country, i will need to look it in internet this time, but who live in America will be able to see it
Edited by Dark Ice Dragon, 17 August 2017 - 04:37 PM.
Posted 17 August 2017 - 11:48 PM
Mars at midday, from a panorama shot taken by the rover.
[pic]
I thought that was a screenshot from No Man's Sky. It has about the same amount of content.
Ready fo the sun Eclipse of the 21 August ? unfortunately for me, is not visible in my country, i will need to look it in internet this time, but who live in America will be able to see it
Yep, I have my eclipse glasses. It's only a total eclipse for a 60-mile wide stretch. The part of the US I live in is about 100 miles away, so it'll be about 80-90% eclipsed. It's from about 1PM EST to about 4PM EST with the maximum being at about 2:30 lasting only six minutes or so. I'm pretty excited about it. I get off work at 2 that day, so I'll be driving home during it. Hopefully people can still keep their eyes on the road.
Posted 20 August 2017 - 09:13 AM
Posted 21 August 2017 - 10:05 AM
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