PDA

View Full Version : Carnival of Space #114: Third Cheapest Carnival on Earth



Fraser
2009-Aug-03, 01:40 PM
This week’s Carnival of Space is hosted by Steve Nerlich at Cheap Astronomy Click here to read the Carnival of Space #114. And if you’re interested in looking back, here’s an archive to all the past Carnivals of Space. If you’ve got a space-related blog, you should really join the carnival. Just email an entry to carnivalofspace@gmail.com, [...]

More... (http://www.universetoday.com/2009/08/03/carnival-of-space-114-third-cheapest-carnival-on-earth/)

galacsi
2009-Aug-03, 07:04 PM
The angry astronomer astonish me with his reasoning about that Kuiper object ; Haumea. He is saying : if the time scale for a collision is 8 106 years then the time scale for two collisions is about 1013 years. IMO it is only 1.6 106 years.

Why saying the probability of two collisions is a composed probability ? Is there something I don't understand here ? IMO The two collisions are completely independent , the probability of the second don't depend of the occurence of the first.