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David_Harkin
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Quick question, if the properties or electromagnetic and gravitational are basically the same is it possible to block gravity like you can block em fields using a Faraday Cage or am i basing this on bad science?
Quick question, if the properties or electromagnetic and gravitational are basically the same is it possible to block gravity like you can block em fields using a Faraday Cage or am i basing this on bad science?
dst said:There is gravitomagnetism, very likely to be proven, see http://www.esa.int/SPECIALS/GSP/SEM0L6OVGJE_0.html.
David_Harkin said:Quick question, if the properties or electromagnetic and gravitational are basically the same is it possible to block gravity like you can block em fields using a Faraday Cage or am i basing this on bad science?
David_Harkin said:Sorry, what i meant was there are a few similarities between them and if this could be one. I have read about gravtomagnetism in the new scientist about a year ago...i must dig it up out of the pile of them under my bed. Thanks
David_Harkin said:Quick question, if the properties or electromagnetic and gravitational are basically the same is it possible to block gravity like you can block em fields using a Faraday Cage or am i basing this on bad science?
rbj said:Zapp, i think that an incomplete (and not always accurate) concept of GEM can sort of be had with the comparative inverse-square field behavior (what makes Gauss's Law work for both EM and gravity) and the additional postulate that pertubations in the gravitational field propagate at the same speed c as do perturbations of an EM field. a set of Maxwell-like equations for either case can be constructed that are consistent with the inverse-square and finite speed properties each case has. it's not an adequate description for real physicists, but for those of us that don't do GR, it's a sorta-kinda understanding.
Quick question, if the properties or electromagnetic and gravitational are basically the same is it possible to block gravity like you can block em fields using a Faraday Cage or am i basing this on bad science?
David_Harkin said:At the moment i am studying a level physics and so i do not understand all what these contributers are talking about, but i am eager to learn and i will now read up on it. What I was originally talking about was the original Newtonian view of gravity ie. the inverse square law etc. Thanks
Sojourner01 said:Quite; I don't really understand how the classical magnetic field is supposed to come about, but I've been told that it's to do with a relativistic transform of the 'electric' field - so they're actually one and the same. Presumably if viewing an electrostatic field relativistically yields a new field, viewing a gravitational field will do the same. This had never occurred to me but is fascinating.
An electromagnetic field is a physical field that is created by electrically charged particles and is responsible for the interactions between charged particles. These fields are comprised of both electric fields and magnetic fields, which are closely related.
Electromagnetic fields work by creating a force on charged particles, causing them to move and interact with one another. This force is created by the interaction between electric fields and magnetic fields. This interaction is described by Maxwell's equations, which explain how the fields are created and how they behave.
Electromagnetic fields have many practical applications in our daily lives. Some examples include electricity generation, communication systems (such as radio and television), and medical imaging (such as MRI machines). They are also used in industrial processes, such as welding and metal processing.
A gravitational field is a physical field that is created by an object with mass. It is responsible for the force of gravity, which is the attraction between two objects with mass. The strength of a gravitational field is determined by the mass of the object and the distance from the object.
Gravitational fields and electromagnetic fields are different in several ways. Firstly, gravitational fields are created by objects with mass, while electromagnetic fields are created by electrically charged particles. Additionally, gravitational fields only have an attractive force, while electromagnetic fields can have both attractive and repulsive forces. Finally, gravitational fields are much weaker than electromagnetic fields, which is why we can feel the effects of gravity from objects as massive as planets, but we cannot feel the effects of electromagnetic fields from charged particles around us.