It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by Longy4eva
Nice post, starred/flagged.
This worries me a little bit, i know the absolute mind boggling size of the universe, but surely the sheer size of this must give it unparalleled gravitational power. Surely this thing will have some sort of effect on us?
Creepy!
Originally posted by Longy4eva
Nice post, starred/flagged.
This worries me a little bit, i know the absolute mindboggling size of the universe, but surely the sheer size of this must give it unparalleled gravitational power. Surely this thing will have some sort of effect on us?
Creepy!
Originally posted by Longy4eva
uhm.. Black holes suck in everything, time, space even light. don't think you could see it . But! I know where you're coming from.. i think they'd have to use the infra-red spectrum, or are probably using satellite equipment that can read the gravitic pull.
That thought crossed my mind too, how can you measure something you can't see... and have nothing to compare it to?
BUT! (here's where all those physics lessons at A-level come in handy )
Originally posted by KrisFromGenk
"Hawking’s riddle is a trick question. Due to the relative nature of time under Einstein’s general theory, time should stop at the event horizon. Anything that approaches, therefore, should come to a halt before it falls into the black hole, effectively preventing the black hole from forming in the first place."
bend your mind on this
Originally posted by ahnggk.
It's still uncertain if time will actually stop at the Event Horizon.
[edit on 13-5-2009 by ahnggk]
Despite its invisible interior, a black hole can reveal its presence through interaction with other matter. A black hole can be inferred by tracking the movement of a group of stars that orbit a region in space which looks empty. Alternatively, one can see gas falling into a relatively small black hole, from a companion star. This gas spirals inward, heating up to very high temperature and emitting large amounts of radiation that can be detected from earthbound and earth-orbiting telescopes. Such observations have resulted in the general scientific consensus that, barring a breakdown in our understanding of nature, black holes do exist in our universe.[2]
The schematic diagram of velocity measurements of a rotating disk of hot gas shows a plot of the spectrographic evidence for a supermassive black hole at the center of the elliptical galaxy M87. Gas near the center of the galaxy is moving at 550 km/sec, thus a very large mass must exists to keep the gas from flying off.
STIS Records a Black Hole's Signature in M84
Credit: Gary Bower, Richard Green (NOAO), the STIS Instrument Definition Team, and NASA
The colorful "zigzag" on the right is the signature of a supermassive black hole in the center of galaxy M84, discovered by Hubble Space Telescope's Space Telescope Imaging Spectrograph (STIS). The image on the left, taken with Hubble's Wide Field Planetary and Camera 2 shows the core of the galaxy where the suspected black hole dwells. Astronomers mapped the motions of gas in the grip of the black hole's powerful gravitational pull by aligning the STIS's spectroscopic slit across the nucleus in a single exposure.
Feasting Black Hole Blows Bubbles
Credit: NASA and Jeffrey Kenney and Elizabeth Yale (Yale University)
A monstrous black hole's rude table manners include blowing huge bubbles of hot gas into space. At least, that's the gustatory practice followed by the supermassive black hole residing in the hub of the nearby galaxy NGC 4438. Known as a peculiar galaxy because of its unusual shape, NGC 4438 is in the Virgo Cluster, 50 million light-years from Earth.
• “Schwarzschild’s solution” is not Schwarzschild’s solution. Schwarzschild’s actual solution does not predict black holes. The quantity ‘r’ appearing in the so-called “Schwarzschild solution” is not a distance of any kind. This simple fact completely subverts all claims for black holes.
• Despite claims for discovery of black holes, nobody has ever found a black hole; no infinitely dense point-mass singularity and no event horizon have ever been found. There is no physical evidence for the existence of infinitely dense point-masses.
• It takes an infinite amount of observer time to verify the presence of an event horizon, but nobody has been and nobody will be around for an infinite amount of time. No observer, no observing instruments, no photons, no matter can be present in a spacetime that by construction contains no matter.
• The black hole is fictitious and so there are no black hole generated gravitational waves. The international search for black holes and their gravitational waves is ill-fated.
• The Michell-Laplace dark body is not a black hole. Newton’s theory of gravitation does not predict black holes. General Relativity does not predict black holes. Black holes were spawned by (incorrect) theory, not by observation. The search for black holes is destined to find none.
• No celestial body has ever been observed to undergo irresistible gravitational collapse. There is no laboratory evidence for irresistible gravitational collapse. Infinitely dense point-mass singularities howsoever formed cannot be reconciled with Special Relativity, i.e. they violate Special Relativity, and therefore violate General Relativity.
• General Relativity cannot account for the simple experimental fact that two fixed bodies will approach one another upon release. There are no known solutions to Einstein’s field equations for two or more masses and there is no existence theorem by which it can even be asserted that his field equations contain latent solutions for such configurations of matter. All claims for black hole interactions are invalid.
• Einstein’s gravitational waves are fictitious; Einstein’s gravitational energy cannot be localised; so the international search for Einstein’s gravitational waves is destined to detect nothing. No gravitational waves have been detected.
• Einstein’s field equations violate the experimentally well-established usual conservation of energy and momentum, and therefore violate the experimental evidence.
In an audience of theoretical physicists there was stunned silence—and not a single question.
Originally posted by Santaniel
Good article
In about 10,000 years or so we will know what happens when two black holes merge... Question if it takes so many billions of years for light too reach us and what we see could already be possibly dead stars... Then how do we know it will happen in 10,000 years and by the time we see it does that mean it already happend like so many billions of years ago? Sorry just a question it might seem very laymen to some who understand Astrophysics but its got me wondering
Originally posted by AmmonSeth
i would just like to add in that there would never be any need to worry about a 'black hole'. This is because by your own scientists theory of the black hole, when being sucked, in time would begin to slow & would eventually end up stopped, Ergo, there would actually be a point where time would stop & you would not actually be 'swallowed' by the hole. However this is only by your scientists theories, they may well be wrong yet ;-)
[edit on 16/5/2009 by AmmonSeth]