two plus two equals seven

For 2023 - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))

Trivial facts can be drawn together at times to give non trivial conclusions. Two pieces of information which might appear to have no security interest can, when added together, provide the reader with a security nugget or loophole. I recall being told (a) that titanium is required for supersonic planes and (b) a military aircraft company that's building the xxx plane has placed a large titanium order. Conclusion - the xxx will be supersonic.

The same thing applies on the web - only more so. So I'm writing another of my entries today in the full knowledge that one or two readers may draw conclusions beyond the apparently simple facts stated.

(written 2004-08-21, updated 2006-06-05)

Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles

Z900 - The rest
  [8] How much does fuel cost for an airline flight? - (2004-08-09)
  [14] London - Most expensive city?? - (2004-08-14)
  [60] Birth Notice - (2004-09-23)
  [97] What makes a professional photographer? - (2004-10-23)
  [100] Life is frail - (2004-10-26)
  [106] Far from the sea, but close to the heart - (2004-11-01)
  [147] Recent technical articles - (2004-12-10)
  [169] A pleasure to train - (2005-01-05)
  [178] Calling a spade a spade - (2005-01-15)
  [214] Futility of war? - (2005-02-13)
  [275] See 8 but buy 6. See 6 but you can buy 8. - (2005-04-10)
  [678] Why are maps rarely to scale? - (2006-04-10)
  [700] As I walked in to Oxford - (2006-04-26)
  [810] A bad place for security firms - (2006-07-21)
  [905] Not proud to be British - (2006-10-26)
  [2113] Answering a question with a question - (2009-04-01)
  [2807] Canal through Melksham - the options and issues - (2010-06-13)
  [4188] Extended Weekend - but not a quiet one! - (2013-10-07)
  [4516] Looking ahead on the blog - (2015-09-25)

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Not two the same

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Some other Articles

Release numbers
Impossible terms
Skills and responsibilities
Falling out over the silliest things
two plus two equals seven
Not two the same
interesting products and subjects
Wanted: More hours in the day
Differing tastes
Python training

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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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