Re: [Sci.nanotech] Re: Nanomachines and Life


No, I don't know anyone who uses as a part of their definition of
> "life"that it must be made from these substances.

Search for life is linked to search for water. It implicates that we are
looking for a life (or nanomachines) similar to ours. Nanotechnology is
showing that different types of machines can exist.

I would like to get feedback of intelligent nanomachines on
> Earth on my thoughts.

What are your thougths on intelligent nanomachines on Earth then ?
> You've not written a single word about those.

I got the reply from right destination.

Thanks ,

Nandan
----- Original Message -----
From: Eivind Kjorstad <ekj@xxxxxxxxxxx>
Date: Friday, July 1, 2005 4:45 pm
Subject: [Sci.nanotech] Re: Nanomachines and Life

>
> Maple Biotech Pvt. Ltd. wrote:
>
> > Nanotechnology is trying to make machines on Nanoscale which
> could be
> > of self replicating type or could be produced on mass scale.
> > Biological systems have been doing the same for long time.
>
> Yes. Common bacteria can be viewed as proof that there is no physical
> reason why a self-replicating device of similar size cannot exist.
>
> > We have been trying to search life on other planets. We call life
> > which is made by Carbon, Hydrogen and Nitrogen components.
>
> No, I don't know anyone who uses as a part of their definition of
> "life"that it must be made from these substances.
>
> The conventional definition is that something is alive if it has
> all of
> these characteristics atleast at some point in its existence:
>
> 1. Growth
> 2. Metabolism, consuming, transforming and storing energy/mass;
> growingby absorbing and reorganizing mass; excreting waste
> 3. Motion, either moving itself, or having internal motion
> 4. Reproduction, the ability to create entities that are similar to
> itself
> 5. Response to stimuli - the ability to measure properties of its
> surrounding environment, and act upon certain conditions.
>
> This definition ain't totally uncontroversial, in particular 4 causes
> problems: read literally it would mean that a infertile person is not
> alive. Nevertheless, this clearly encompasses your hypothethical
> sulfur-based creatures.
>
> There are better groups than the nanotech-one for discussion of
> alternative biochemistries though. Try rec.arts.sf.science for
> example.
> > I would like to get feedback of intelligent nanomachines on
> Earth on
> > my thoughts.
>
> What are your thougths on intelligent nanomachines on Earth then ?
> You've not written a single word about those.
>
>
> Regards,
> Eivind Kjrstad
>
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>


.

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