Search found 6 matches
- Thu May 31, 2007 10:56 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Astronomy and "controlled scientific tests"
- Replies: 86
- Views: 30765
Astronomy and controlled Scientific tests.
There seems to be a lull in this thread, yet not all has been said I'm sure. I am posting this in this thread because the question and queries that deal with at least four of the items in the first post, and also with the last post by(at the time I composed this) Unfortunately, the question and the ...
- Tue May 29, 2007 6:48 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Dark Matter
- Replies: 113
- Views: 23885
Thank you Nereid for pointing out my error. Nereid said: First, the Shaposhnikov and Lev Titarchuk preprint includes the following: Quote: For the mass of the BH in Cyg X-1 we have: MCygX-1 = [...] (8.7 +/-0.8)Msol [...] This inferred value of Cyg X-1 BH mass is slightly lower than 10 Msol given by ...
- Sat May 26, 2007 6:02 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Dark Matter
- Replies: 113
- Views: 23885
DARK MATTER
We know they are heavy, but how exactly do you weigh a black hole? The usual way to estimate the mass of black holes orbiting stars is to look at how the star wobbles under the influence of the black hole's motion. But this method is imprecise, says Nikolai Shaposhnikov, an astrophysicist at NASA's...
- Wed May 23, 2007 12:22 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Dark Matter Ring (APOD 16 May 2007)
- Replies: 26
- Views: 9897
dark matter ring
In no uncertain terms can we use plasma as an explanation in lieu of DARK MATTER. Once everyone accepts that Dark Matter exists, just like the human race had to learn that the earth wasn't the centre of the universe, just like they eventually had to accept Newtons Laws, and just like we had to accep...
- Tue May 22, 2007 5:18 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Dark Matter
- Replies: 113
- Views: 23885
dark matter
It seems to me that maybe dark matter had a hand in creating the hurricane as well. Enough already, let us just call it unknown matter without any theories. There are lots of forces at play here on earth that we don't understand fully, yet to assume that we can explain something we'll never get clo...
- Wed May 16, 2007 2:39 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Dark Matter
- Replies: 113
- Views: 23885
Dark Matter
There are several items already within this thread that I find interesting, not all having to do with the subject matter, but related because of use within the discussion. The first is the concept of making the math work out. This is an essential to science. Indeed it was how Newton and Einstein dev...