https://xxn.org.uk/ 2026-10-25T05:27:52+00:00 https://xxn.org.uk/ https://xxn.org.uk/lib/tpl/dokuwiki/images/favicon.ico text/html 2010-04-22T09:06:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://xxn.org.uk/doku.php?id=workshops:hello_logic&rev=1271945172 The logical preposition 'A is A', the principle of identity, embodies precepts about under what environmental conditions that principle is executed. On the one hand it might be as a mnemonic denoting the failure to complete a routine ('file not found', black screen of death). On the other hand there is a grammar of material difference inherent in those physical components that make up the circuitry performing the computation, and which is scalar, that is, 'A' can appear to be more or less than … text/html 2010-04-10T07:10:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://xxn.org.uk/doku.php?id=workshops:tremulations&rev=1270901454 <http://en.wikipedia.org/wiki/Relaxation_oscillator> MagniF 10 magnetite powder supplied by <http://www.minelco.com/index.asp?Id=8&prodId=40> (John.Bowden@minelco.com) use magnetite powder drawing to make diy relaxation oscillator/similar array