well the funny part about is that there is no full proof of ' black material' so if there is no 'black material' exists than there would be no black holes, if i'm correct (I would like to take a different point of view of a black hole btw instead of looking at it from earth)
ah whatever .... if they exist and hum bass well that's cool I would love if they would humm like the red planets we know ;) ah well RAW ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, September 10, 2003 8:39 PM Subject: (313) Black Holes Love Bass > > > > > http://www.cnn.com/2003/TECH/space/09/10/blackhole.music.reut/index.html > > Black hole hums deepest note ever detected > > Wednesday, September 10, 2003 Posted: 1:51 PM EDT (1751 GMT) > > WASHINGTON, Sept 9 (Reuters) -- Big black holes sing bass. One particularly > monstrous black hole has probably been humming B flat for billions of > years, but at a pitch no human could hear, let alone sing, astronomers said > this week. > > "The intensity of the sound is comparable to human speech," said Andrew > Fabian of the Institute of Astronomy at Cambridge, England. But the pitch > of the sound is about 57 octaves below middle C, roughly the middle of a > standard piano keyboard. > > This is far, far deeper than humans can hear, the researchers said, and > they believe it is the deepest note ever detected in the universe. > > The sound waves are emanating from the Perseus Cluster, a giant clump of > galaxies some 250 million light-years from Earth. A light-year is about 6 > trillion miles (10 trillion km), the distance light travels in a year. > > Fabian and his colleagues used NASA's orbiting Chandra X-Ray Observatory to > investigate X-rays coming from the cluster's heart. > > Researchers presumed that a supermassive black hole, with perhaps 2.5 > billion times the mass of our sun, lay there, and the activity around the > center bolstered this assumption. > > Black holes are powerful matter-sucking drains in space, and astronomers > believe most galaxies, including our own Milky Way, may contain black holes > at their centers. > > Black holes have not been directly observed, because their gravitational > pull is so strong that nothing, not even light, can escape it. > > Making waves > > So researchers have concentrated on what happens around the edges of black > holes, just before matter is pulled in. > > When scientists trained the Chandra observatory on the center of Perseus > last year, they saw concentric ripples in the cosmic gas that fills the > space between the galaxies in the cluster. > > "We're dealing with enormous scales here," Fabian said in a telephone > interview. "The size of these ripples is 30,000 light-years." > > Fabian said the ripples were caused by the rhythmic squeezing and heating > of the cosmic gas by the intense gravitational pressure of the jumble of > galaxies packed together in the cluster. > > As the black hole pulls material in, he said, it also creates jets of > material shooting out above and below it, and it is these powerful jets > that create the pressure that creates the sound waves. > > To scientists, he said, pressure ripples equate to sound waves. By > calculating how far apart the ripples were, and how fast sound might travel > there, the team of researchers determined the musical note of the sound. > > Fabian said the notion of singing black holes might well be extrapolated to > other galaxies, but not necessarily to the Milky Way. > > Chandra has looked at X-ray emissions from the Milky Way's center, and > astronomers believe there is a black hole there, but because it is a young, > rambunctious galaxy with lots of activity at its heart, this may interfere > with any note our black hole might sing, Fabian said. > >
