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Subject: 
Re: Modelling boolean gates with trains
Newsgroups: 
lugnet.general, lugnet.off-topic.geek, lugnet.robotics, lugnet.edu, lugnet.trains
Date: 
Wed, 20 Sep 2000 21:56:09 GMT
Viewed: 
63 times
  
Dave Low wrote:

Okay, this might be totally impossible (or insane or banal), but has anyone
modelled boolean functions on a train layout (System or Duplo)? At the moment
I'm thinking "train on the line"=1, "not on the line"=0. NOT could be done by
reversing the trains direction, OR by having two tracks enter one line at
points, but what about AND ? Or does AND not make sense given the definitions
of 1 and 0? Maybe you need "train pushing a wagon"=1...


For those of a mathematical disposition, I vaguely remember an
article on the subject of building computing logics out of train
tracks in 'Eureka' (the annual journal of the Cambridge University
undergraduate math society, the Archimedeans) a few years ago.
The article was by Adam Chalcraft. Unfortunately, I don't have a
copy of the article, but I know Adam, so if anyone is interested,
I can contact him and ask.



Message is in Reply To:
  Modelling boolean gates with trains
 
Okay, this might be totally impossible (or insane or banal), but has anyone modelled boolean functions on a train layout (System or Duplo)? At the moment I'm thinking "train on the line"=1, "not on the line"=0. NOT could be done by reversing the (...) (24 years ago, 20-Sep-00, to lugnet.general, lugnet.off-topic.geek, lugnet.robotics, lugnet.edu, lugnet.trains)

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