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- From: clarke@acme.ucf.edu (Thomas Clarke)
- Newsgroups: sci.nanotech
- Subject: The Industirial Egg or Why Nano? (was Surviving)
- Message-ID: <Jan.21.22.52.08.1993.5193@planchet.rutgers.edu>
- Date: 22 Jan 93 03:52:08 GMT
- Sender: nanotech@planchet.rutgers.edu
- Organization: University of Central Florida
- Lines: 89
- Approved: nanotech@aramis.rutgers.edu
-
- I wonder why nanotech must be developed in the small, and some
- comments on Malcom McMahon's posting.
-
- In article <Jan.19.22.41.18.1993.23082@planchet.rutgers.edu>
- cuhes@csv.warwick.ac.uk (Malcolm McMahon) writes:
- >
- > On the subject of simple design and safety engineering my impression is
- > that engineers do no like to trust computers at all in safety-critical
- > systems.
-
- See below. Detailed discussion on building reliable hardware deleted.
-
- > Actually by the time you have a replicator you are most
- > of the way. You just have to solve docking, comunications, problems of
- > cooperation and what to do about nano that dies on you.
- >
- > I don't find the hot-house idea very credible. What conditions would
- > nano be likely to require? Not high tempartures and pressures,
- > certainly,
-
- See discussion following egg comments.
-
- > I can envisage an "egg" sealed within which was the seed nano
- > together with enough material to create a larger enclosure in an
- > environment in which the nano could operate long enough to build that
- > enclosure. It would burst out of the egg as a swelling membrane,
- > equiped with selective transport mechanisms to take in raw materials.
-
- This reminds me of the concept of the industrial egg. That is a critical
- mass of machinery and computers etc that you can place in an empty field.
- Once activated, the egg then unfolds, proceeds to mine and process
- materials, reproduce parts of itself as necessary, build new pieces
- etc. etc. The final result is a field with a factory in it that
- produces, say, automobiles automatically. Depending how things
- are arranged, the industrial egg or a copy might be found sitting next
- to the factory ready for re-use. With different software, presumably
- the same egg could generate a factory for VCRs.
- {I don't recall where I read about this, but it was mentioned in connection
- with von Neumann (or self reproducing) machines}
-
- The industrial egg sounds a lot like the universal replicator of nanotech
- fame. I always invisaged the egg as being about the size of semi-trailer
- truck. You turn it on, solar panels unfold, little bulldozers roll out,
- an electric furnace fires up, numerically controlled machine tools
- begin to turn, chemical retorts start to bubble, etc. etc.
-
- Clearly, industrial eggs are possible. Only now they are the size
- of Gary, Indiana and use biological neural networks for control.
- The size could probably be vastly reduced once we understand how
- to even build any kind of industrial egg. This brings up the
- question in the title, why does nanotech apparently offer
- solutions to problems that we don't know how to yet solve in
- macrotech?
-
- I think the hot-house ideas may offer a way out. After all isn't
- this how nature did it? Get some sort of very crude replicator
- going, then let it reproduce like mad with errors and under competition
- so that only the fittest survive. After 4 billion years you get
- an industrial egg the size of Gary, Indiana. Maybe the process
- can be speeded up.
-
- >
- > Things that do scare me:
- >
- > 3) An obscure bug in the software of widely used symbiotic medical
- > nano.
-
- Software bugs in medical machines have already killed people. One was an
- X-ray machine used to treat tumors - high dosage stuff. The tech set
- up the machine by entering commands into the computer and after
- treatment had begun noticed that one of the parameters he had entered was
- wrong. Since the user-unfriendly software required him to back out
- through a series of menues and then reenter all the information
- over again, he just hit reset (crtl-alt-del?). Unfortunately, the
- software reset did not reset the hardware, until after machine rebooted.
- In the meanwhile the patient fried. I think hardware interlocks are
- required on all such machines now. Funny to contemplate software
- approved by the Food and Drug Administration.
-
- > 4) The mess that we're going to make of the transition from a paid
- > work oriented society.
-
- We already have this problem. What are layed-off IBM workers going to
- do? Work at McDonalds?
-
- Thomas Clarke
- Institute for Simulation and Training, University of Central FL
- 12424 Research Parkway, Suite 300, Orlando, FL 32826
- (407)658-5030, FAX: (407)658-5059, clarke@acme.ucf.edu
-