JohnStu

Still theoretically the wave would travel forever if their was nothing in its way right?

Yes, for a very very long time, but not forever if nothing get in its way.

I'd rather seek spiritual immortality anyday. The body is merely an mud shell for the real beautiful stuff

Good thinking and knowledge you have there.

I see space-time as something that does not stretch. If it does stretch, it has to be a "medium". If space-time stretches then the space of space-time is static, then what is actually space ha.

Being immortal means being eventually out-evolved by a group that refreshes its gene quickly

Quantum computing? There is a prototype version of it in my lab. The semiconductor (is a protein) has 6 states, so it will be based on 6 digits if only I could find a way to mass produce these proteins cheaply and put them to the proper places.

I am not a native English speaker. Is entropy the desire of matter to become colder and colder?

Lone tiny planets (without stars) would have their life forms wiped out due to entropy, given enough time that is

Topic: redshift

Two influencers in redshift: doppler effect and expansion of space-time

One result: redshifted or blueshifted

Didn't stars not form until after the Big Bang? Thus stars 13.5 billion aprox plus light years away don't have their brightness

Earth will undergo couple different periods. I am not sure if dissapearance of solar wind would keep more gas or let go more gas.

Ultimately, Earth will be totally frozen and lose atmosphere completely. (due to coldness)

Question from an amateur

 

Is the fact that the speed of light is independent of ots source just a fact of reality proven by observation or does relativity offer a reason for this fact.

Rephrasing your question into: Is light emitted from a star travelling at half of c faster on one side and slower on the other? Dont think so. I remember reading an experiment to test this some years ago, the experiment showed no changes in light speed.

Hi so I had a question about telescopes. I was thinking about humans mapping the universe, and I thought about how maybe in the future we will be able to look through telescopes and see every corner of the universe or at least the milky way galaxy. So a question came up because I know that if you look at a star thats far away with your naked eye, you are looking at old light or something. So I had a question about what if you had a powerful telescope that looked upon the surface of a distance star, like really up close, would there still be this time delay? or would we be looking at live action star footage? we could ask the same question about the sun. if we look upon the surface of the sun now, are we still looking at 8 minute old sun rays?

 

Thanks for any help and for taking the time to read my question!!

did u say surface of a star? stars don't have fancy surfaces except "lower temperature regions" which are called sun spots

Good that he has done such research. I have done further research on it in one of my paper. There exists no direct coorelation between the constants and the scale of things.

And on gravity: gravity is a drug-force in my opinion. The reason I call it drug-force is because it distorts or at least misdirect researchers' views. Imagine a parallel universe where there are only magnets and that each planet is a pure magnet as well, would gravity remain an important force or would the definition of gravity in that universe be different

Good thinking. My version is that blackhole does eject matter. However, because of its strong gravity, the ejected material with not enough escape velocity end up coming back, and the ones with fast enough velocity end up totally escaping and travelling in a total straight line eventually. This version does seem more detailed isn't it.

I recommend readings on conservation of momentum of elastic collisions. It's good read for all physics enthusiasts. That is the actual core of Newtonian physics I believe.

I doubt the medium in the universe is electric, or charged. a totally charged medium means a lot of things. but so far, no observations of "charged" influence in the universe.

much of the stuff around electromagnetism is still mystery at the fundamental level, so you might be partially right

The interesting thing about the universe is that it takes energy to move a mass. Since energy is mass, and mass is energy. That sentence can be altered to it takes mass to move energy. Quite funny

Hi

During the core collapse of a massive star does spacetime stretch ?

Is it possible that because of that stretching, some particle get catch in a wave and accelerate to faster than light ?

I know relativity prohibit that matter be accelerated faster than light, but when we consider distant galaxies they look like going faster than light because of the space expansion. Is it possible that something similar happen on a smaler scale in supernova explosion ?

 

Thanks

Yes quite possible. There still exists much mystery around topics of redshift of light, spacetime, blackholes etc..

I've looked for figures on the internet but couldn't find any. The sun is ejecting mass into space and I need to know how much hydrogen the sun loses through solar wind and the like.

 

thanks.

hold on, the sun does not emit hydrogen atoms. It emits charged ions or hydrogen parts. At least I don't think the sun emits hydrogen atoms that much, percentage-wise.

doubt it highly (100% actually haha)

The advocators of Darwin's theory do not qualify to speak as Darwin. They are not entirely right on that statement in this post.

Where did you get that diagram from, I doubt only a UV photon can alter a DNA like that, it's been proven that visible light photons even penetrate cell walls.

It's not that earth has a lot of iron, but that most the hydrogen gas couldn't "stick". The result in 4.5 billion years is an iron core with little atmosphere.

A hypothetical situation that has bugged me recently:

 

A small spacecraft full of air at 1:1 compression ratio with that of Earth's atmosphere suspended within a bubble of the vacuum of space appear instantly in our atmosphere. When the air rushes in to fill the void, is the craft lost from the change in pressure?

 

Would the craft survive if it was contained within a bubble of atmosphere, and suddenly appeared in a vacuum, or would the sudden decompression rip it apart?

yes, if it is made of thin sheet of aluminum or anything that is not strong enough. Current spacecraft can handle air pressure or depressure with no scratches

Just as a hydrogen atom is made up of a positive and a negative particle, arrays of electrical particles can take on stable formations.

A case can be made for the earth and our sun to both be holding negative electrical charge charge. As such, both bodies would posses downward-pointing electric fields that lead to existence of a congestion of positive particles at their central cores. Meditation over how negatively charged outer shells of these bodies would hold lesser charges of positive polarity within themselves brings needed insight toward the electrical influence upon galactic infrastructure.

no hydrogen atom exists on earth though. They exist in the form of hydrogen-something(s)

a lot of international students stay because it has better environment. The lure of better environment often is treated as better job opportunity.

Some go entirely for the state benefits to be honest

Nope, they will not save you guys. USA was a warmonger, leechy government since Lincoon.

USA has bases everywhere, their purpose is to war, war, war. They treat the country like a country in a computer game.

I think a better question than will a Romney/Ryan win save us would be "Will I keep voting for the same group of people and keep paying my heavy taxes"

Could you please first share some data that shows your premise to be valid before you ask us to begin speculating about why it may be that way?

The marriage rate he means is the rate of number of new 1st marriages. It is obviously much lower in developed nations than 3rd world or developing.

The root cause is lack of healthy males. Too many men read newspaper instead of doing general labor

they say it is due to the Big Bang and dark matter