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(Phys Org2)   For the first time, astronomers have measured the radius of a black hole, still can't calculate the number of digits in your mom's pi   (phys.org) divider line 6
    More: Interesting, black holes, supermassive black holes, Event Horizon, astronomers, radius, general relativity, extreme environment, Perimeter Institute  
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2819 clicks; posted to Geek » on 28 Sep 2012 at 1:10 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2012-09-28 08:41:44 PM
2 votes:
This is why I love Fark. We can have intelligent and scientific discussions from a headline about how many fingers fit in my mom's snatch. :)
2012-09-28 07:54:41 PM
1 votes:

Ambitwistor: Xai: that can't be right.

It is right. Helpful conversion: a black hole's radius is 3 km for every solar mass.

At that size it is 8.54x10^13 times the volume of the sun, and at a mere 6.2b solar masses it would be 0.00007% the density of the sun. That cannot be right.

Density calculations like that break down because they assume Euclidean geometry. Anyway, a black hole is virtually empty (pure vacuum, plus whatever may briefly may be passing through it), except for a point singularity at the center of infinite density.


Have either of you known the touch of a woman?

/I keed, I keed
2012-09-28 05:11:46 PM
1 votes:

Xai: that can't be right.


It is right. Helpful conversion: a black hole's radius is 3 km for every solar mass.

At that size it is 8.54x10^13 times the volume of the sun, and at a mere 6.2b solar masses it would be 0.00007% the density of the sun. That cannot be right.

Density calculations like that break down because they assume Euclidean geometry. Anyway, a black hole is virtually empty (pure vacuum, plus whatever may briefly may be passing through it), except for a point singularity at the center of infinite density.
2012-09-28 02:21:37 PM
1 votes:

JolobinSmokin: Link

I'll just leave this here enjoy.


Awesome. Loved it when MC Hawking kicked in with his mad skillz.

The universe is made of
12 particles of matter
4 forces of nature
doo-do dooby do-do
2012-09-28 01:41:33 PM
1 votes:

whatshisname: So what was the radius?


12.
2012-09-28 01:23:34 PM
1 votes:
Both parts of the headline are farking funny.

Black holes are the space equivalent of CO2 induced greenhouse warming.
 
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