Graham Ellsbury
g  r  a  h  a  m  @  e  l  l  s  b  u  r  y  .  c  o  m      


The Enigma and the Bombe
Two essays, with schematic diagrams, describing the logical construction and operation of the German Enigma enciphering machine and the Turing bombe, an electro-mechanical cryptanalytical machine devised by Alan Turing and Gordon Welchman at Bletchley Park during the Second World War to break the Enigma.

Cheetah's Canine EPI Homepage
Cheetah, my German Shepherd dog, suffers from exocrine pancreatic insufficiency (EPI). Veterinary medicine for this condition is extremely expensive but fortunately there is an effective and cheaper alternative. Cheetah tells us about her diet which controls this condition.

Mathematical Research
My research into the axiomatic structures of boolean algebras and the propositional calculus, including an essay concerning the relation between re-entrant boolean structures and the pilot wave interpretation of quantum mechanics.

MicroVector Computer Systems
The homepage of MicroVector Computer Systems listing their various services.

Slick Harry's Homepage
A website featuring electronic product reviews.

Leisure Project Finance
Developers who provide international project finance for the leisure, tourist and entertainment industries.

NuSearch Search Engine
Search the web with NuSearch - the first of a new generation of search engines.

In Memoriam John M. Ellsbury
The memorial page to John Ellsbury, my American cousin, who died as a result of a car accident at the tragically young age of 17.