[TML]Chemistry Question Richard Aiken (02 May 2014 04:36 UTC)
Re: [TML]Chemistry Question Tim (02 May 2014 06:40 UTC)
Re: [TML]Chemistry Question Knapp (02 May 2014 06:44 UTC)
Re: [TML]Chemistry Question Tim (02 May 2014 07:37 UTC)
Re: [TML]Chemistry Question Knapp (02 May 2014 18:11 UTC)
Re: [TML]Chemistry Question Richard Aiken (04 May 2014 06:02 UTC)
Re: [TML]Chemistry Question Tim (04 May 2014 06:57 UTC)
Re: [TML]Chemistry Question Bruce Johnson (04 May 2014 14:31 UTC)
Re: [TML]Chemistry Question Richard Aiken (05 May 2014 04:24 UTC)
Re: [TML]Chemistry Question shadow@xxxxxx (05 May 2014 09:45 UTC)
Re: [TML]Chemistry Question Bruce Johnson (05 May 2014 16:48 UTC)
RE: [TML]Chemistry Question Anthony Jackson (06 May 2014 21:11 UTC)
Re: [TML]Chemistry Question Richard Aiken (08 May 2014 04:05 UTC)
Re: [TML]Chemistry Question Richard Aiken (08 May 2014 04:07 UTC)
Re: [TML]Chemistry Question Richard Aiken (08 May 2014 04:10 UTC)
Re: [TML]Chemistry Question Knapp (08 May 2014 05:30 UTC)
Re: [TML]Chemistry Question Tim (08 May 2014 06:43 UTC)
Re: [TML]Chemistry Question Richard Aiken (08 May 2014 08:14 UTC)
Re: [TML]Chemistry Question Tim (08 May 2014 15:17 UTC)
Re: [TML]Chemistry Question Bruce Johnson (08 May 2014 16:01 UTC)
Re: [TML]Chemistry Question shadow@xxxxxx (09 May 2014 08:48 UTC)
Re: [TML]Chemistry Question Richard Aiken (09 May 2014 09:21 UTC)
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Re: [TML]Chemistry Question Bruce Johnson (09 May 2014 14:47 UTC)
Re: [TML]Chemistry Question Tim (09 May 2014 15:51 UTC)
Re: [TML]Chemistry Question Knapp (09 May 2014 20:54 UTC)
Re: [TML]Chemistry Question Bruce Johnson (09 May 2014 21:50 UTC)
Re: [TML]Chemistry Question Phil Pugliese (09 May 2014 23:09 UTC)
Re: [TML]Chemistry Question Tim (10 May 2014 07:32 UTC)
Re: [TML]Chemistry Question Phil Pugliese (10 May 2014 17:10 UTC)
Re: [TML]ChemistryQuestion Rob O'Connor (10 May 2014 08:45 UTC)
Re: [TML]ChemistryQuestion Knapp (10 May 2014 21:13 UTC)
Re: [TML]ChemistryQuestion Phil Pugliese (10 May 2014 22:04 UTC)
Re: [TML]ChemistryQuestion Tim (11 May 2014 04:40 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (11 May 2014 06:22 UTC)
Re: [TML]ChemistryQuestion Phil Pugliese (11 May 2014 15:57 UTC)
Re: [TML]ChemistryQuestion Bruce Johnson (12 May 2014 19:04 UTC)
Re: [TML]ChemistryQuestion Phil Pugliese (12 May 2014 19:13 UTC)
Re: [TML]ChemistryQuestion Bruce Johnson (12 May 2014 20:52 UTC)
Re: [TML]ChemistryQuestion Knapp (12 May 2014 21:32 UTC)
Re: [TML]ChemistryQuestion Phil Pugliese (12 May 2014 22:21 UTC)
Re: [TML]ChemistryQuestion youngerpliny@xxxxxx (12 May 2014 21:41 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (11 May 2014 06:47 UTC)
Re:[TML]ChemistryQuestion Rob O'Connor (12 May 2014 08:48 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (12 May 2014 19:32 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (12 May 2014 20:49 UTC)
Re: [TML]ChemistryQuestion Tim (13 May 2014 00:22 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (14 May 2014 02:45 UTC)
Re: [TML]ChemistryQuestion Tim (14 May 2014 03:53 UTC)
Re: [TML]ChemistryQuestion Tim (14 May 2014 04:20 UTC)
Re: [TML]ChemistryQuestion Kelly St. Clair (14 May 2014 06:11 UTC)
Re: [TML]ChemistryQuestion Bruce Johnson (14 May 2014 17:37 UTC)
Re: [TML]ChemistryQuestion Knapp (14 May 2014 18:00 UTC)
Re: [TML]ChemistryQuestion Bruce Johnson (14 May 2014 18:51 UTC)
Re: [TML]ChemistryQuestion Jeffrey Schwartz (14 May 2014 19:09 UTC)
Re: [TML]ChemistryQuestion Bruce Johnson (14 May 2014 20:20 UTC)
Re: [TML]ChemistryQuestion Knapp (14 May 2014 20:35 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (15 May 2014 03:51 UTC)
Re: [TML]ChemistryQuestion Knapp (15 May 2014 05:33 UTC)
Re: [TML]ChemistryQuestion Tim (15 May 2014 07:44 UTC)
Grey Goo (Was: ChemistryQuestion) Mikko Parviainen (15 May 2014 08:39 UTC)
Re: [TML] Grey Goo (Was: ChemistryQuestion) Tim (15 May 2014 11:38 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (16 May 2014 06:20 UTC)
RE: [TML]ChemistryQuestion Anthony Jackson (16 May 2014 16:29 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (20 May 2014 06:28 UTC)
Re: [TML]ChemistryQuestion Knapp (20 May 2014 17:55 UTC)
RE: [TML]ChemistryQuestion Anthony Jackson (20 May 2014 18:32 UTC)
Re: [TML]ChemistryQuestion Richard Aiken (21 May 2014 08:14 UTC)
Re: [TML]ChemistryQuestion Tim (21 May 2014 13:05 UTC)
Re: [TML]ChemistryQuestion Phil Pugliese (23 May 2014 08:09 UTC)
RE: [TML]ChemistryQuestion Anthony Jackson (14 May 2014 20:44 UTC)
RE: [TML]ChemistryQuestion Anthony Jackson (14 May 2014 20:52 UTC)
Re: [TML]Chemistry Question Knapp (06 May 2014 20:53 UTC)

Re: [TML]Chemistry Question Tim 02 May 2014 07:37 UTC

On Fri, May 02, 2014 at 08:44:37AM +0200, Knapp wrote:
> As stated the speed of reactions is important I I would guess that
> changing the solvent would change that speed but NOT uniformly
> resulting in messed up systems.

The main problem is that different reactions change in their rates
and/or equilibrium values in different ways, and biology involves huge
numbers of different, important, and interdependent reactions.  Mess
with any of them and you get widespread problems.

In humans a +/-2% internal temperature change is a life-threatening
emergency.  That's not fundamental to carbon/water based life, though.
Some organisms can multiply with cellular temperatures up to 390 K (at
higher pressure), and others down to 250 K.  In dormant form, or for
relatively short periods, the temperature ranges can be even wider.

Those wide temperature ranges come at quite a large biological cost:
such organisms generally only survive only because they occupy very
restricted niches.  If required to compete with other organisms in
more ordinary conditions they don't thrive so well.

I would expect all poikilothermic life forms - regardless of
biochemical solvent - to have tradeoffs against more homeothermic
organisms.  It won't be a simple matter of "this solvent stays liquid
in a wider range, therefore all life forms based on it will function
equally well at all temperatures".  That's far too simplistic and
ignores competition with other organisms based on the same solvent.

- Tim