IPB

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
A collisionless scenario for Uranus tilting
lyford
post Dec 6 2009, 10:49 PM
Post #1


Senior Member
****

Group: Members
Posts: 1264
Joined: 18-December 04
From: San Diego, CA
Member No.: 124



A collisionless scenario for Uranus tilting
GwenaŽl Bouť, Jacques Laskar
(Submitted on 1 Dec 2009)

As seen in:

DiscoveryNews

A lot of ifs in that article, and one shouldn't read the comment thread without making sure one's blood pressure prescription is current.


--------------------
Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test
Go to the top of the page
 
+Quote Post
nprev
post Dec 6 2009, 11:54 PM
Post #2


Senior Member
****

Group: Moderator
Posts: 7087
Joined: 8-December 05
From: Los Angeles
Member No.: 602



Interesting; thanks, Lyford!

(You ain't lying about that comment thread...sheesh! rolleyes.gif )


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
qraal
post Jan 11 2010, 10:11 AM
Post #3


Junior Member
**

Group: Members
Posts: 44
Joined: 13-February 06
From: Brisbane, Australia
Member No.: 679



QUOTE (nprev @ Dec 7 2009, 10:54 AM) *
Interesting; thanks, Lyford!

(You ain't lying about that comment thread...sheesh! rolleyes.gif )


The nutbar factor is high.

Interesting how the proposed moon is ~15% Earth mass. That's roughly the size of the small planet proposed to cause the truncation of the Kuiper Belt in a separate scenario. I wonder if two birds couldn't be killed with one stone?
Go to the top of the page
 
+Quote Post
Greg Hullender
post Jan 11 2010, 05:17 PM
Post #4


Senior Member
****

Group: Members
Posts: 1010
Joined: 29-November 05
From: Seattle, WA, USA
Member No.: 590



Oh it wasn't so bad! I only counted two seriously ignorant commenters, only one of whom was nasty. And the responses to them seemed to be thoughful and constructive.

That said, I never would have even looked at the comments if I hadn't been warned not to. :-)

As for the article, I wonder if they explored the possibility that the moon was retrograde and eventually fell into the planet. That would leave the question of how it is that Uranus has any moons at all now, of course.

--Greg
Go to the top of the page
 
+Quote Post
hendric
post Jan 11 2010, 05:42 PM
Post #5


Director of Galilean Photography
***

Group: Members
Posts: 713
Joined: 15-July 04
From: Austin, TX
Member No.: 93



What, no comments on this?

each Uranian hemisphere experiences 42 years of continuous sunlight (a year on Uranus is 84 Earth years).

That just doesn't sound right. smile.gif


--------------------
Space Enthusiast Richard Hendricks
--
"The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke
Mother Nature is the final inspector of all quality.
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 23rd October 2014 - 04:34 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.