The scientists are saying that: “The Milky Way contains a super massive black hole” and they believe this because: “stars are seen orbiting around an invisible mass very fast.”
(“Invisible mass??”) The obvious assumption that is being made here is that, it is the “mass” that is causing the gravitational field, and that is a description of a Newtonian gravity, Einstein's equations are different.
From: http://en.wikipedia.org/wiki/General_relativity
“Einstein's equations”
“Having formulated the relativistic, geometric version of the effects of gravity, the question of gravity's source remains. In Newtonian gravity, the source is mass. In special relativity, mass turns out to be part of a more general quantity called the energy–momentum tensor, which includes both energy and momentum densities as well as stress (that is, pressure and shear).[29] Using the equivalence principle, this tensor is readily generalized to curved space-time”
In Einstein’s equations the field does not originate in the mass, even though the mass affects the field. It is the curved spacetime continuum that contains the field that is known as gravity. In other words, if the spacetime continuum is curved without having mass involved, then the gravity will still exist. (Why does mass cause the space time to curve?)
Scientists and you say that there is an “invisible” mass that exists at the center of the galaxy, and I say that there is no mass, “invisible” or otherwise.
Since a telescope that would see invisible mass has not been developed yet, I would say that our hypothesis have equal value.
Space/Science » in reply to No, Johannes.
Hmm, interesting
The whole thread (38 posts)
- Why black holes don't suck.
- A 10 y/o plays football against the 49ers.
- Your argument is valid, except for the fact that
- Use or misuse of a word tells us nothing about what the word allegedly describes.
- The galaxy is expanding? I don't think so.
- My reasoning is that
- Objects that close are both red-shifted and blue-shifted...
- But stars and galaxies of stars were formed by gravity? Tthey formed by contraction. I
- Why not use your reasoning, instead,
- My reasoning is that
- Well done, 4.0, except they do seem to suck, a lot, and blow, a little.
- Excellent, thanks n/t