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Originally posted by Connected
Not really, no he hasn't proven that. You are going to believe that gravity is nothing but a "visual effect", oh wow, you are going to be stuck in a rut forever with that mentality.
Originally posted by Connected
A magnet creates its own "gravity". There for it works in zero g. Also, the Earth creates its own "gravity", there for it also works in zero g. The Earth is a giant magnet floating in space. If you got a giant man made magnet and put it out in space by itself, it would still work, because it creates its own "gravity" called magnetism.
Originally posted by Infinite motion
Except maybe that i was tired and retarded. Well maybe just retarded
Originally posted by Infinite motion
Sorry but magnets do not creat their own gravity, if this was so then why are only certain metals attracted to the magnet. Wouldn't every thing be attracted if they did indeed creat their own gravity?
Originally posted by Infinite motion
When actually "thinking" I noticed what i said about Einstien was incorrect, the thoery i said he had proven was that gravity can have an effect on light and "bend" it, if you will. But this also does in part prove that curved space-time is the possible cause of gravity.
Originally posted by Connected
Everything IS attracted to magnets, just not noticably. Magnets more obviously attract metals of various types because they have very high "premeability". Everything has a measurable permeability: people, gases, and even the vacuum of outer space. The reason Earths magnetic field attracts everything is because it is such a powerfull magnet that it doesn't matter how much premeability an object has, it will still attract it.
Enter Albert Einstein. In 1915 he proposed the theory of general relativity. General relativity explained, in a consistent way, how gravity affects light. We now knew that while photons have no mass, they do possess momentum (so your statement about light not affecting matter is incorrect). We also knew that photons are affected by gravitational fields not because photons have mass, but because gravitational fields (in particular, strong gravitational fields) change the shape of space-time. The photons are responding to the curvature in space-time, not directly to the gravitational field. Space-time is the four-dimensional "space" we live in -- there are 3 spatial dimensions (think of X,Y, and Z) and one time dimension.
Originally posted by ipsedixit
To my knowledge no-one knows how gravity works, but Galileo, Newton and Einstein were able to provide more or less accurate mathematical descriptions of the effect.
Originally posted by ipsedixit
When you say that photons are affected by gravity not because they have mass but because they change the shape of space time
Originally posted by ipsedixit
This becomes obvious when you give some thought to time. Time exists only as a conception used by the mind to order events.
Originally posted by 2PacSade
Originally posted by Beer_Guy
We've got cars with fuel injection, variable spark advance, variable duration timing, roller valvetrains, cleaner & better burning fuels, synthetic lubricants, advanced spark plugs & wires, electronic coils with hotter & longer duration sparks, aluminum & magnesium blocks & heads, double overhead cams, and many other advances in automotive engine technology.
They come standard with 20 or 30 computers that monitor & maintain proper function of all subtending components much better that their old mechanical predecessors used to in the past and make the car much more advanced in many areas.
Cars accelerate faster, weigh less, stop quicker, steer better, park themselves, have air bags & crumple zones, drive with no oil or on punctured tires, have heated & power everything, navigate you to a destination, AND tell you everything going on in the vehicle through numerous digital displays while you listen in comfort to hi fidelity satellite radio or CD while the kids watch their favorite DVD, BUT-
Most of them still get 20 or 30 MPG just like they did 20 years ago!
( WTF squared! )
2PacSade-
YES,YES,YES!!! I've been sayiong this for sooo long and noone seems to comprehend the obvious absurdity of it. With all of the technological advances, in general, not to mention the multitude of technical automotive advances, and little if any change IN THE DAMNED MPG's!!! Go Figure!