Welcome, Guest. Please login or register.

Author Topic: Nasa is to reveal Mars water secrets...  (Read 14479 times)

Description:

0 Members and 2 Guests are viewing this topic.

Offline Quixote

  • Hero Member
  • *****
  • Join Date: Mar 2002
  • Posts: 2059
    • Show all replies
Re: Nasa is to reveal Mars water secrets...
« on: March 09, 2004, 11:33:55 PM »
KennyR kibitzed:
Quote
Nope, it's a matter of chemistry. At the temperature ranges where water could be used as a solvent for life (0-100C of course), green chlorophyll happens to be the most efficient chemical for photosynthesis. There are other kinds - brown, red...but these are a lot less efficient and are used by plants that don't have any other choice, like deep seaweeds.

;-) Ken, there are trees near my house that are purple.  The color may be due to other elements in the leaves besides the chlorophyll, but the point is that they don't look green to the eye, or camera.
 

Offline Quixote

  • Hero Member
  • *****
  • Join Date: Mar 2002
  • Posts: 2059
    • Show all replies
Re: Nasa reveals Mars water secrets...
« Reply #1 on: March 09, 2004, 11:35:32 PM »
Cecilia chided:
Quote
unless something can hybernate for millions of years and if you drop some water on it suddenly wakes up, we ain't seein' no martains.

;-) There have been cases of that happening on Earth.  Microorganisms captured in amber for millions of years springing to life once the appropriate environmental conditions were restored.
 

Offline Quixote

  • Hero Member
  • *****
  • Join Date: Mar 2002
  • Posts: 2059
    • Show all replies
Re: Nasa reveals Mars water secrets...
« Reply #2 on: March 10, 2004, 09:25:36 PM »
@ Cecilia:

;-) That's fair.  I'm a bit of a skeptic, myself.


@ Speelgoedmannetje:

:lol: Nope.  There is nothing in my eye, but thanks for your concern.