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Re: The Return of The Thagomizer... :-)

To: dannj@alphalink.com.au
Subject: Re: The Return of The Thagomizer... :-)
From: jrc <jrccea@bellsouth.net>
Date: Fri, 13 Jul 2007 03:49:47 -0600
Cc: dinosaur@usc.edu
References: <BAY111-F1762A1722861DB597B05B3ED000@phx.gbl> <001301c7c0b4$7f523a10$0300a8c0@LENOVO>
Reply-to: jrccea@bellsouth.net
Sender: owner-DINOSAUR@usc.edu

Might want to take a look at the Hertzsprung-Russell diagram.
JimC

----- Original Message ----- From: "Dann Pigdon" <dannj@alphalink.com.au> To: <dinosaur@usc.edu> Sent: Thursday, July 12, 2007 11:53 PM Subject: Re: The Return of The Thagomizer... :-)

If my thumbnail calculations are correct, then the sun has only increased (relative to it's initial brightness) by a further 0.58% since the end of the Cretaceous. Dinosaurs probably lived through less than a 2% increase in brightness due to increased solar output during their entire reign on earth.

References:
- Re: The Return of The Thagomizer... :-)
  - From: Brandon Pilcher <trex_kid@hotmail.com>
- Re: The Return of The Thagomizer... :-)
  - From: David Marjanovic <david.marjanovic@gmx.at>

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