Documents, reference cards and videos
Documents
Errata for Butcher and Cotter's The Elements of Nonlinear
Optics (Cambridge University Press, 1990)
This is the errata for the book which I in 2003 used as course literature
when I gave a course in nonlinear optics at the Royal Institute of
Technology. In my opinion, Butcher and Cotter's book is the best and most
pedagogical in theoretical nonlinear optics, and the compiled errata is based
on the notes which I have collected in my personal copy of the book since
1996. Added 11 January 2009.
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Replacing the hard disk drive of an Apple PowerBook G4
Replacing the hard disk of an Apple PowerBook G4 (12" screen) is cumbersome,
but with some care it nevertheless is a straightforward task.
Added 4 July 2006.
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Synchronising an old Macintosh with a new mobile phone
Apple make great hardware. Just wanted to say that, to make my standpoint
clear. However, this means that any Macintosh is quite likely to survive
quite a few mobile phones over the years, which in turn means that your
OS X version at some stage is likely to be outdated when it comes to
synchronisation of the address book with the phone.
Added 9 January 2009.
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(X)HTML Entities For Special Characters
A compilation of useful (X)HTML character codes.
Added 12 December 2006.
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Reference cards
c-refcard-a4.pdf [104 kB] Reference card v1.3 for C programming language (ANSI-C), designed by Joseph H. Silverman, Brown University (1999).
emacs-refcard-a4.pdf [80 kB] Reference card v2.2 for GNU Emacs, designed by Stephen Gildea for Free Software Foundation, Inc (1997).
tex-refcard-a4.pdf [135 kB] Reference card v1.3 for plain TeX, designed by Joseph H. Silverman, Brown University (1998).
php-refcard.pdf [123 kB] Reference card v1.0 for the PHP 4 programming language, designed by Steven R. Gould (2002).
Video clips
Pascal's ride on La
Périphérique, Paris
Don't try this at home.
Added 7 February 2008.
Povel Ramel and Martin Ljung in
»Var är tvålen»
Possibly the best Swedish music video ever produced.
Added 10 December 2008.