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Chemistry / Will the release of a gas from a chemical reaction stop at a certain pressure?

« on: 24/10/2016 16:19:27 »

If a chemical reaction takes place within a closed container and a gas is produced the pressure inside will rise as far as I know until the reaction ceases or the container breaks and releases the pressure.

My question is that if you made a container thick enough would the reaction eventually stop because there would be no further room for gas to fit or is it irrelevant and that the gas would just keep being produced creating higher and higher pressure until the reaction stopped?

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Physics, Astronomy & Cosmology / Does a black hole really compress things down to a singularity?

« on: 23/03/2016 15:45:32 »

Is the event horizon of a black hole not just the point at which matter cannot be crushed down any further? and that after that point something has to give and so instead of it getting more compact it moves either slightly ahead/behind of time relative to the outside of the event horizon so that it is there in the galaxy but that it could for example be 1 second ahead of the galaxies timeframe and continually be behind or ahead of it? but still at the same time allowing gravity to radiate like a left over wave from it being slightly ahead/behind.

* It would give a reason why you could not see the black hole.
* It could give the cause for galaxy rotation being the same on the outside as the inside.
* It could be why particles come into and out of existence as they move back into the galaxies timeframe for a moment.
* It would be a good candidate for dark matter maybe?
* A similar process could be responsible for the inflation period after the big bang?

I know this is looking like a theory but its more questioning really of where I may be going off the beaten track but it would be interesting to see what you guys think.

Cheers

3

Physics, Astronomy & Cosmology / Why does the universe have to be expanding?

« on: 25/12/2015 14:31:13 »

Is it possible that the universe is already at a set size and that everything is just expanding out to its edge instead of the universe coming from a point at the big bang? If the edge had mass would this not explain how the matter in the universe is accelerating? as the gravitational effect grew as it gets closer.

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Physics, Astronomy & Cosmology / what colours have the sky been in the past?

« on: 24/12/2015 09:38:13 »

As the atmosphere of the Earth has been different at other times in the past, what colour skies may we have seen in the past?

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Physics, Astronomy & Cosmology / Where do astronomers look for signals from E.T's?

« on: 27/09/2015 12:57:15 »

My point is do we look directly away from our sun? As any intelligent lifeforms using the transit method of detecting planets would find us easier if we went directly accross our star.

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Physics, Astronomy & Cosmology / Could we be inside a blackhole?

« on: 28/08/2015 14:18:25 »

From what ive heard galaxies are "generally" proportioned in relation to there black hole at the center. Has anybody ever theorised that we may be on the inside rather than the outside? Im imagining some reversed donut type shape.

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Physics, Astronomy & Cosmology / Do gravitons exist, and how we can we detect them?

« on: 27/08/2015 15:51:07 »

Is it known weather Gravitons exist or are just a theoretical? and if it is theoretical could you not use the height of the tides as an experiment to detect them? When the Moon is above the sea it directly affects the height of the tide whereas when its the opposite side of the Earth it has to work through the mass of the Earth and so could you see a lower tide as some of the Gravitons were absorbed by the Earths mass in a similar way to how they try to detect dark matter deep under ground.

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Physics, Astronomy & Cosmology / Is gravity very weak because its been stretched out?

« on: 29/03/2014 15:02:52 »

If such as matter there was so much to start with was gravity the same?

How accurately can gravity be measured? Is it to many decimal places?

If we could measure it accurately enough would we see it getting weaker as the universe expands and also be able to measure the speed that it is expanding?

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Physics, Astronomy & Cosmology / Do photons cancel each other out?

« on: 29/03/2014 14:36:57 »

If 4 people stand with there backs against the walls in a room how can i see the person on the opposite side of the room when the people to my left and right can also see each other? Why doesnt there image block mine and ours block theirs?

10

Physics, Astronomy & Cosmology / Are there large blocks of ice in space?

« on: 24/03/2014 11:19:58 »

Are there blocks of water ice in space that would be so large that they would be liquid inside because of the pressure of gravity?

Im basing this on how as you go deeper into the Earth the temperature rises.

If this was a ball of ice the size of the Earth, maybe it would be froze solid on the surface, then maybe a few miles down be luke warm water rite down to a core that was superheated and uninhabitable but in that band there could be life maybe? and a nursery for life that could come to Earth as the outer shell burnt of in the atmosphere protect the life within.

Is this a possible idea?

Cheers
Ace

11

Physics, Astronomy & Cosmology / Is Venus always going to be as inhospitable?

« on: 23/03/2014 17:58:17 »

 have just watched a YouTube video about the earth going through a period of intense volcanic activity a few hundred million years ago which killed of most of life. Could it be that something similar is happening to Venus now and that in maybe a million years or so it could become like Earth?

 Also the estimations of temprature rise were quite low for Earth so does this mean scientists could be way out here as Venus’s ground temp is a lot higher than what the Earths was or does it merely show two totally different things happening and that I'm totally wrong?

Cheers
Ace

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Physics, Astronomy & Cosmology / Does matter turn to energy in a black hole?

« on: 01/03/2014 18:44:05 »

When it gets crushed down its hard to comprehend matter going to a singularity but as it has a close relationship with energy then would it need any space at all if it changed to energy?

Does energy take up any space? I.e how much energy could fit inside a 1 cm2 container?

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Physics, Astronomy & Cosmology / would the first UFOs that visit us contain life or robots?

« on: 01/03/2014 18:29:57 »

Purely hypothetical at the moment but could it be assumed the first visitors here would probably be some artificial intelligence just as anything we send further than the moon seems to be rovers etc?

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Physics, Astronomy & Cosmology / How far does gravity of an object reach?

« on: 22/12/2013 15:58:56 »

Taking the gravitational effect of a body how far does it reach? If we say its effect is a quarter of its strength when the distance is doubled due to the inverse square law, does this not make its attraction infinite although exceptionally weak at large distances. Also do we know why gravity is the strength it is? Ie why is the gravitational force of a body the mass of the sun what it is why is it not twice as much for that amount of mass. Finally if we took all the mass in the universe does its gravitational effect have any relationship to the universes size?

Cheers Ace

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Physics, Astronomy & Cosmology / could we be stuck inside our own galaxy?

« on: 29/07/2013 18:38:50 »

Ive recently watched a program about black holes and space curving and all that and that there is a black hole in the centre of most galaxies.

There is a concensus that the black hole leads to a singularity which means infinitely small. Now if all this matter 3 million suns worth in the milky way if I remember rite in a space that is infinitely small, surely it is impossible, if you have something it has to be somewhere you would think.

Also mentioned was that the black hole size was in proportion to the size of the matter in its galaxy so it seems related even though what is inside it cannot get out as well as look out if it had a conscious of some sort to know it had to change. It must know what is around it or it would not turn out like this but once inside nothing can get out so how could this happen?

So, has it ever been considered that the galaxy is like a dohnut which is inside out if that makes sense where the black hole is twisting the space of the galaxy in on its self? Could this mean we are stuck inside it and that the black hole is like an exit into the universe rather than an infinitely small point? Would this also help the problem that there is not enough gravity to hold a galaxy together if it is not actually the shape we perceive?

Thankyou for your thoughts in advance

Cheers
Ace

16

Physics, Astronomy & Cosmology / What range of signals do SETI scan for?

« on: 13/06/2013 11:04:47 »

When SETI scans for a signal from space that may be an alien race do they cover much of a range of signals and would it not be possible if they didn't that they could record say a 10 minute batch of information and then go through all of it checking every band possible?

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Physics, Astronomy & Cosmology / A question on time

« on: 12/06/2013 12:46:30 »

When an object moves in relation to another and for example the stationary object is observed by the moving object to be one year older and vice versa does this show us that there is not one time but that time is almost in layers?

Cheers
Ace

18

Physics, Astronomy & Cosmology / how bigger point of gravitational lensing could there be?

« on: 05/06/2013 18:44:18 »

Is it possible that a blackhole or some object could have so much mass and was so huge we would not realise it was a gravitational lense?

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Physics, Astronomy & Cosmology / whats the other side of the milkyway ?

« on: 05/06/2013 18:36:16 »

As above is there any idea what is beyond our central region from which we are obscured?

Cheers
Ace

20

Technology / Could we ever make a nuclear spaceship engine?

« on: 04/06/2013 18:48:39 »

Could we use the power from a nuclear weapon as an engine how small could it be made obviously a Hiroshima jobby wouldn't leave much behind so something smaller, how small could one be made before it would not work and how could it work? maybe use a strong magnetic field to push against the blast.

Cheers
Ace