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First black hole for light created on Earth
New Scientist ^
| 10/14/09
| Anil Ananthaswamy
Posted on 10/14/2009 11:23:47 AM PDT by LibWhacker
click here to read article
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To: MHGinTN
Or you can just paint it black. Same thing. I see black stuff all the time. It’s not invisible. Except in the absence of light, and then everything is invisible.
21
posted on
10/14/2009 12:00:03 PM PDT
by
mamelukesabre
(Si Vis Pacem Para Bellum (If you want peace prepare for war))
To: Pontiac
You don’t do a lot of dating, do you?
22
posted on
10/14/2009 12:00:50 PM PDT
by
Old Professer
(The critic writes with rapier pen, dips it twice, then writes again.)
To: Old Professer
Not since I got married.
The wife doesn’t like it when I do.
23
posted on
10/14/2009 12:05:09 PM PDT
by
Pontiac
(Your message here.)
To: LibWhacker
Somebody better stop this!!
THEY ARE GONNA DESTROY THE PLANET!!!!!
Minorities and the homeless will be most affected....
24
posted on
10/14/2009 12:15:10 PM PDT
by
KoRn
(Department of Homeland Security, Certified - "Right Wing Extremist")
To: Lonesome in Massachussets
Mirrors merely reflect light. This device actually captures it.
25
posted on
10/14/2009 12:50:45 PM PDT
by
Blood of Tyrants
(The Second Amendment. Don't MAKE me use it.)
To: Blood of Tyrants
You can concentrate a helluva lot of light with mirrors. Ask Archemides. There was actually a French solar plant where the U.S. tested components for resistance to nuclear blast effects, “thermal shock”. They rigged the focal point with a fast shutter and than, wham, opened it up for a couple of seconds to see how the unit under test survived the blast.
Another post pointed out the this “draws in light from space”. Basically a graviational lens is just a lens, albeit lossless. Reflective/refractive optics don’t get me excited, even if it’s refraction based on < hushed and awed tones> General Relativity.
26
posted on
10/14/2009 12:59:39 PM PDT
by
Lonesome in Massachussets
(The People have abdicated our duties; ... and anxiously hope for just two things: bread and circuses)
To: Lonesome in Massachussets
I think that the advantage is the physical size. Also you would not have the problems associated with dirty, fragile mirrors which have to be moved periodically for optimum light reflection.
27
posted on
10/14/2009 1:05:02 PM PDT
by
Blood of Tyrants
(The Second Amendment. Don't MAKE me use it.)
To: Conan the Librarian
So when do we get free 3-D / 4-D porn on our televisions from this?
To: AdmSmith; bvw; callisto; ckilmer; dandelion; ganeshpuri89; gobucks; KevinDavis; Las Vegas Dave; ...
The device, which works at microwave frequencies, may soon be extended to trap visible light, leading to an entirely new way of harvesting solar energy to generate electricity.
Uh, yah. :')
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29
posted on
10/14/2009 2:23:28 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: Lonesome in Massachussets
Nothing is reflected or poorly absorbed. All the light is trapped for 100% use.
30
posted on
10/14/2009 2:26:13 PM PDT
by
ConservativeMind
(There is no "gray area" on issues. I see things from both sides, but I choose the right side.)
To: LibWhacker
A theoretical design for a table-top black hole to trap light was proposed in a paper published earlier this year by Evgenii Narimanov and Alexander Kildishev of Purdue University in West Lafayette, Indiana.
sweet
31
posted on
10/14/2009 2:29:38 PM PDT
by
allmost
To: LibWhacker
32
posted on
10/14/2009 2:31:57 PM PDT
by
arthurus
("If you don't believe in shooting abortionists, don't shoot an abortionist." -Ann C.)
To: ConservativeMind
Can you then keep it in a bottle in the refrigerator?
33
posted on
10/14/2009 2:35:45 PM PDT
by
arthurus
("If you don't believe in shooting abortionists, don't shoot an abortionist." -Ann C.)
To: mamelukesabre
"So does this thing actually bend light towards it? " "steering"or "bouncing" or "continuously reflecting" might be better descriptors...
But then, that wouldn't sound as impressive when begging for the next grant-renewal, grant, or other funding...
34
posted on
10/14/2009 3:10:33 PM PDT
by
SuperLuminal
(Where is another agitator for republicanism like Sam Adams when we need him?)
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