The Fabrics Of Stars| LoFi version for PDAs |
 Help
 Search
 Members
 Calendar
|
| Welcome Guest ( Log In | Register ) | Resend Validation Email |
Add reply · Start new topic · Start new poll |
The Fabrics Of Stars| graciassenor |
Posted: May 12 2008, 10:53 PM
|
|
Newbie  Group: Members Posts: 46 Joined: 29-November 07 Positive Feedback: 22.22% Feedback Score: -14  |
How do cosmologists and astronomers know that stars are hydrogen molecules fusing into helium? Have they literally detected the nuclear fusion within stars taking place, or is this simply a theory? Thanks.
This post has been edited by graciassenor on May 12 2008, 10:54 PM |
|
Send PM · Send email ·
|
| graciassenor |
Posted: May 14 2008, 07:46 PM
|
|
Newbie Group: Members Posts: 46 Joined: 29-November 07 Positive Feedback: 22.22% Feedback Score: -14 |
so it's just a theory? good to know.
|
|
Send PM · Send email ·
|
| ofelas |
Posted: May 17 2008, 02:31 PM
|
||
|
Member Group: Members Posts: 67 Joined: 17-May 08 Positive Feedback: 100% Feedback Score: 8 |
OK, I'll risk it....  It is a theory (not "just" a theory, I hate that usage of the term, implying that the poster does not know the difference between a theory and a hypothesis), a theory supported by an astounding amount of observation, and predictive of more astounding amounts of observations... By the way, hydrogen fusion is a mechanism fueling main-sequence stars only, in later stages of the star's life heavier elements will be fused, up to and including iron, which eventually results in a supernova in stars massive enough, again, in conformance with theoretical predictions. -------------------- Terra-Solssa Jorg Mormegil Kullervo dam Leningrad
-----Begin Geek Code block----- Version 3.1 GS/CS>$ d--- s+:+() a+ C+++ ULB+++ P++ L+++ E+ W++ N++ o+ K w--- O M V- PS++ PE- Y+ PGP++ t+ 5++ X R++ !tv b++++ DI++ D G++ e++ h r+ y++** ------End Geek Code Block------ |
||
|
|
| kjw |
Posted: May 17 2008, 10:06 PM
|
||
|
LHC! LHC! LHC! Group: Members Posts: 1338 Joined: 24-May 06 Positive Feedback: 91.18% Feedback Score: 56 |
short answer: the first step of the proton-proton chain reaction produces neutrinos. neutrinos have been detected coming from the sun. This post has been edited by kjw on May 17 2008, 10:07 PM |
||
|
Send PM · Send email ·
|
|
Add reply · Start new topic · Start new poll |
Powered by Invision Power Board(U) v.1.cust © 2003 IPS, Inc.