Black holes not black after all

[Grey Cloud]

Black holes not black after all
http://www.physorg.com/news129830718.html

Black holes resemble cosmic drains where space disappears like water going down a plughole.

Normal waves heave up and down in the direction they move, whereas anti-waves do the opposite.

Does that mean that anti-waves heave down and up in the direction they move, or that anti-waves heave up and down in the direction they don't move?
I'm not technically minded.

However, our experiment does not completely agree with theory and so much work remains to be done to understand exactly what happens at the event horizon for water waves.

Great, so now they have not only theories without experiments but experiments without theories.
Can't quite make out why black holes are no longer black though. But like I said, I'm not technical.

[MGmirkin]

However, our experiment does not completely agree with theory and so much work remains to be done to understand exactly what happens at the event horizon for water waves.

Great, so now they have not only theories without experiments but experiments without theories.
Can't quite make out why black holes are no longer black though. But like I said, I'm not technical.

Erm, actually, it sounded more like they have BOTH experiments AND theories, but the one doesn't match the other.

Experimental results =/= theoretical predictions...

So... What now?

Time to take out the shoehorn?

~Michael Gmirkin

[chris_vincent]

One basic thing about black holes has always troubled me. If no information(light, charge etc) about a black hole can escape its stygian depths, then how can gravity? If space were to bend according to its mass, then hasn't information about the hole escaped the event horizon? If gravity is not bending of space, then it will still be invisible to the universe unless gravity travels faster than c. Call me simple, but that's the way I see it

Any replies appreciated.



Chris

[klypp]

Black holes resemble cosmic drains where space disappears like water going down a plughole. Space seems to flow, and the closer one gets to the black hole, the faster it flows. At the event horizon space appears to reach the speed of light, so nothing, not even light, can escape beyond this point of no return.

I can confirm this! There is no light coming up from the plughole of my bathtub!!!

[junglelord]

We must still be careful we do not get sucked up by the vortex....

[Grey Cloud]

Black holes resemble cosmic drains where space disappears like water going down a plughole. Space seems to flow, and the closer one gets to the black hole, the faster it flows. At the event horizon space appears to reach the speed of light, so nothing, not even light, can escape beyond this point of no return.

I can confirm this! There is no light coming up from the plughole of my bathtub!!!

The public need to be warned!

I wondered whether the Black Holes in the northern sky revolved in the opposite direction to those in the southern sky?

[nick c]

Grey Cloud wrote: Can't quite make out why black holes are no longer black though. But like I said, I'm not technical.

I think they are saying that Black Holes are no longer black in that some 'stuff,' Hawking Radiation, can leak out. In other words, modifying the concept that 'black' means anything that goes in could never come out. And somehow, this is illustrated with the analogy of water going down a drain. Wow, that does sound stupid, perhaps it's better to draw the analogy to tax dollars going down the drain. The amazing thing is how they are able to sell the public and fellow scientists such a bill of goods.
I'm not technical either, but then there is, when it comes to Black Holes, apparently a fine line between technical and fanciful.
I would like a mainstream explanation about the polar jets that are often observed being emitted from the alleged super massive black holes at the center of active galaxies-
how do the jets escape getting sucked into the Black Hole?
and if they do, wouldn't the jets just go into orbit around the black hole?
what is the escape velocity for a supermassive Black Hole?
I am sure that these are all stupid questions.

Nick

[davesmith_au]

perhaps it's better to draw the analogy to tax dollars going down the drain.

Something like this?...

Artist's impression of a black hole - Credit: Dave Smith and Thunderblogs/Thunderbolts

Cheers, Dave Smith.

[Grey Cloud]

Dave Smith
In order to reflect this latest 'discovery', you may want to alter your image so the dollar signs are going down in a spiral.

[MGmirkin]

Dave Smith
In order to reflect this latest 'discovery', you may want to alter your image so the dollar signs are going down in a spiral.

Unofficial response:
Unfortunately, we are not sufficiently well-funded to figure out how to make taxes spiral down the drain... But, maybe if you know of any good grants that might be willing to fund our research, we could take up the issue?



~Michael Gmirkin

[MGmirkin]

(New research on black holes shakes Einstein's theories)
http://news.u-trade.org/astronomy/new-r ... ories.html

Not to mention:

( Big Bang Busted! - The Black Hole, the Big Bang, and Modern Physics)
http://www.thunderbolts.info/thunderblo ... others.htm

~Michael Gmirkin