Einstein said that nothing can travel faster than the speed of light. Well i just finished reading a part in my book called " final theory " it puts forward the claim of einstein and explains how he could be wrong.

( im sure most of you heard this argument, but incase you have not... here it is )

We are orbiting around our star. Light takes 8 minutes to reach earth from our sun.

So now what if the sun were to INSTANTLY disappear, we would see 8 minutes minutes of Light even after the sun has gone.

But what happens to the planets? Well they would instantly lose their orbit. They would drift away Instantly. So the effects would be felt Straight away if the sun disapeared. That effect has travelled faster than the speed of light

The gravitational effect was felt straight away. Yet The sun Still shines up untill 8 minutes after it Disapeared.


Nothing travels faster than the speed of light?

gravity travels at the same speed as light, if the sun was to instantly disappear we would live our lives as normal for that 8 minutes, as soon as it went black the earth would fall out of its orbit, einstein predicted this so i dont know what book you were reading but they must have over looked that part

Good theory.

Except, does Gravity Travel? It's a constant force, it doesn't nessesarily travel, therefore it doesn't travel faster than light.

This is between newton and einstein lol

The effect Of gravity on the earth from a Stars presence would Instantly be effected if that star were to disapear. Thats what newton says.

Einstein Said that nothing can travel faster than the speed of light. Including the gravitational effect of a sun disapearing

http://news.bbc.co.uk/2/hi/science/nature/2238452.stm

ill admit it is a theory, but i highly highly doubt that einstein is wrong, if anything gravity would be slower than light

1) obviously i know nothing of gravity like i supposed.
2) That's pretty amazing there seeking. Good find, thanks for posting it.

IM gonna do some more research on this, I'll post back what I find soon. thanks for that link

Ive heard this explaination before...



And has it been proven yet that the gravitation effect of a sun disappearing would affect the Earth faster than possible by Einsteins theory?

im not sure what you really mean, but niether have been proven, no one can really say if gravity is faster or slower or at the speed of light, but it is assumed through out the science community that gravity is the same speed as light

radiation travels faster...in space...

If nothing can travel faster then the speed of light, how does one explain Cerenkov Radiation?

http://www.physlink.com/Education/AskExperts/ae457.cfm

check that link out mon-o-me(sp?)

Ack! My memory's foggy about Cerenkov rad... but IIRC, its still theoretical.



Mon ami.

Due to the fact there is no friction in space, wouldn't the speed of anything through space be put down to what propels it?

nothing can move faster than the speed of light in a vacuum. Cerenkov Radiation happens when a particle moves faster than light can when it is in the same medium.

im not sure if you guys realized, but im defending that stance that nothing can travel faster than the speed of light, hence why i posted that link explaining this

Cerenkov Radiation?

Light travels slower through a medium such as glass or air, and when it slows down fast moving radiation (electrons, protons, etc) can exceed its speed. The faster than the speed of light hypotheses refers to the speed of light in a vacuum. Refraction is an example of light slowing down. And the speed of light and gravity have both been directly measured and they travel at 186,000 mi/sec. No theories there, the speed is real. Want to read about faster than light travel then search for quantum teleportation, quantum entanglement. Fact is stranger than fiction.

Wait, there are several things faster then the speed of light, naming but just two, The Starship Enterprise and Superman.
True, they are ficticious, yet they are faster....

I read in a book that a scientist sent light 300 times faster than normal, and another scientist sent something else faster than the speed of light.

i dont believe that, as we can not even make electrons travel the speed of light

That seems to have happened, but thats only preliminary results. They've still gotta analyse it to make sure thats what happened and see whether it disproves Einsteins theory or not.

Lies, Superman is real!

Im pretty sure Santa Claus travels faster than light also.

Intresting info



(see link below)

so i guess it's all about gravity.

RaginCajun,

When copying information directly from a website, you should give credit to that website which provided the information.

This link is the website for the above mentioned information on gravity posted by RaginCajun

Way to go Homer.....and Hey There!

Tachyon particeles are supposed to travel no slower than light speed, but no proff that they exits out side of Quantum math has yet happened.

gotcha...i closed window before i got the chance. which is usually the case...so i put it in "" to signify it wasn't me that said it.

ok, on topic... if the speed of light is the fastest, I heard that as you approach the speed of light, time slows down. Whats this all about>??

nuh uh... superman was only faster than a speeding bullet

Ok.
Here goes:

A. Gravity, as well as the other three forces in nature (electronmagnetism, strong nulcear force, weak nuclear force) are all working at the speed of light.
Thus, earth will have no way of telling that the sun was destroyed untill 8 minutes later. But that doesn't matter anyway, cause for us the sun would still exist.
B. If a particle can travel faster than the speed of light in air or water, then whats keeping it from accelerating in those substances to above the speed of light in vacuum, after it breached the speed of light of the substances?
I mean, a particle is moving faster than the speed of light in water, and enters a glass of water. While he is passing through the water, it is being accelerated to above 300,000km\s (speed of light in vacuum) - what's gonna stop it from doing so?

well it is theorized that everything in the universe travels at light speed, including me, you, earth, jupitor, the milky way, alpha centuri, EVERYTHING, the only thing that makes it appear as if it is slower is that EVERYTHING also shares its energy with the 4 known dimensions, the fourth being time, the reason light travels at light speed is because it is only sharing its energy with the dimension of space (the direction it is heading) it is not sharing it with up and down, or side to side, or time, just the dimension it is traveling in, thus when you approach the speed of light you are taking your energy away from the other 3 dimensions, including time, making time slow down

so we would be living normal for eight minutes even though the sun has completely disappeared instantly? hmmm...

so the sun's light still shines for those 8 minutes.. why is earth still orbiting for those 8 minutes even though there is no more sun for earth to be orbiting around?

hmm..

lets hope that never happens though..

what about.. since the sun's light moves in rays.. and then it takes eight minutes for it to get to us... but then our gravity with the sun is lost. we spin out of control but the sun's light still travels at the same direction it was travelling in. its just not hittin us anymore.
make any sense.. hehe i try..

well i do hope that someone can prove this theory; nothing can go faster than light wrong, cause in that case we would have a very hard time travelling to other solar systems and stars, which are light years away.

I think that the theory is not that likely unfortanatly.

Gravity works different to what you probably think. Think of the Star ( sun ) having Extremely heavy Mass. This would warp space. If the sun were then to disapear, gravity would work like a Wave, like ripples. It would take 8 minutes for them ripples to hit earth out of orbit.

Yes. If the sun were to suddenly vanish, the earth would continue, as normal, for about 8 minutes.
The light from the sun, as well as it's gravity field, is subject to the same constraints: C
So, the gravity field collapse would occur by virtue of the sun no longer being there, but would not collapse for earth until that 8 minutes. In effect and reality, we would continue revolving around an absent sun for that time.

No, not possible. With timeframe, spacetime, gravity, and what not that Einstein said, you can't make anything go faster than the speed of light. Quantam Physicist can only dream of making something travel faster than the speed of light, and that has to do with bending space, and I am no quantam physicist, so, good day.