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galaxy crash proves dark matter existence?
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| pkcRAISTLIN |
yeah, i know i posted this in the PDD, but science at the quantum level just makes me hard in the trousers (mainly coz i dont get it but it sounds cool) :D
| quote: |
A HUGE collision between two clusters of galaxies has provided the first direct evidence of the existence of the universe's mysterious dark matter, US researchers say.
"This is the most energetic cosmic event, besides the Big Bang, which we know about," said Maxim Markevitch of the Harvard-Smithsonian Centre for Astrophysics in Cambridge, Massachusetts.
The impact forced apart dark and normal matter, offering the strongest evidence yet that most of the matter in the universe is dark, researchers said.
"We've come closer than ever to seeing this invisible matter," University of Arizona researcher Doug Clowe, a leader of the study, said in a statement.
"This provides the first direct proof that dark matter must exist and must make up the majority of the matter in the universe," Mr Clowe said.
Scientists realised decades ago that galaxies rotated much faster than their mass should allow, giving rise to the idea that invisible dark matter keeps them from flying apart.
The new evidence of dark matter's existence was discovered with NASA's Chandra X-ray Observatory, the Hubble Space Telescope, the European Southern Observatory's Very Large Telescope and the Magellan optical telescopes, researchers said. |
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| sakabatou |
| quote: | Originally posted by pkcRAISTLIN
but science just makes me hard in the trousers ( |
| quote: | Originally posted by Paulie
gaylord. |
Sounds about right. |
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| tathi |
| very interesting, have you been watching the show on SBS monday nights at 8:30 called "The Elegant Universe" about String Theory PKC?" |
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| pkcRAISTLIN |
| quote: | Originally posted by tathi
very interesting, have you been watching the show on SBS monday nights at 8:30 called \"The Elegant Universe\" about String Theory PKC?\" |
pretty sure ive seen that one already, but will tune in next week, cheers.
tho, its not on at the same time as 'deconstructing paulie: an investigation into morbid cretinism' is it? coz next week has an episode on parading ignorance that i just dont wanna miss :toothless |
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| Paulie |
| Seriously you have issues. |
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| pkcRAISTLIN |
| quote: | Originally posted by Paulie
Seriously you have issues. |
:D |
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| tathi |
| quote: | Originally posted by pkcRAISTLIN
pretty sure ive seen that one already, but will tune in next week, cheers.
tho, its not on at the same time as 'deconstructing paulie: an investigation into morbid cretinism' is it? coz next week has an episode on parading ignorance that i just dont wanna miss :toothless |
is that the one that shows Paulie on A Current Affair explaining why he thinks John Howard is such a benevolent and honest leader? :toothless |
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| Paulie |
| Ill give you that :D |
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| DJ_Ballistic |
| quote: | Originally posted by tathi
very interesting, have you been watching the show on SBS monday nights at 8:30 called "The Elegant Universe" about String Theory PKC?" |
i watched that this week, was alright, thought the whole thing on gravity was a bit bs tho, i dont see how gravity could be called a "weak" force or how it could be compared to electromagnetic force
but im no expert on the subject, so no doubt im wrong
if anyone could offer any clarity on the subject, would be much appreciated |
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| Renegade |
| quote: | Originally posted by DJ_Ballistic
i watched that this week, was alright, thought the whole thing on gravity was a bit bs tho, i dont see how gravity could be called a "weak" force or how it could be compared to electromagnetic force
but im no expert on the subject, so no doubt im wrong
if anyone could offer any clarity on the subject, would be much appreciated |
I didn't see it, but it's fairly easy to prove.
If you put a nail on a table, it's being held down by the gravitational force of the entire Earth. If you then hold a magnet above the nail, the nail will be attracted upwards - against the gravity of the Earth - towards the magnet. This demonstrates that - at close distances, at least - the magnetic force of a small magnet is actually more powerful than the gravitational force of an entire planet. |
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| DJ_Ballistic |
but that just proves earths gravity is weak
not gravity as a whole |
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