The Characteristics and Use of Lead-Acid Cap Lamps, Cowlishaw, M. F., Trans. British Cave Research Association, Vol. 1. No. 4. pp199–214., December, 1974.   Summary: It was 1885 when the first portable rechargeable lamp was invented. The lead-acid cap lamp we know today has evolved in the ninety years since then, and has a high capacity together with many other advantages. This paper describes the construction and characteristics of these lamps, and discusses possible modifications, the use, and the maintenance of the most common types of lead-acid cap lamps.

Forcau ’76; the report of the Oxford expedition to the Pozo de Vega el Forcau. (OUCC proceedings 8, 1976, also available as HTML pages.)

Speleogroup; LED caving lights, expedition logs, and other speleological projects (these are on the Speleogroup.org website).

Fundamental requirements for picture presentation, Cowlishaw, M. F., Proc. Society for Information Display, Volume 26, No. 2 (1985).   Abstract: “How many bits per picture element does a display need?” For the display resolutions now commonly in use, only 4 bits per picture element (pel) are needed for the display of monochrome images. A total of 8 bits per pel are needed for color images. These conclusions are based both on experiment and on the theoretical model of the visual system in which the detectors in the eye are treated as simple photon-detectors. The results are applicable to “natural” images and also to computer generated images. A particular 8-bit color encoding scheme is described that also has the advantage that natural images are displayable on monochrome displays.

The Acorn 6502 Microcomputer Kit; a little piece of computer history—Acorn Computer’s first public offering, the Acorn Microcomputer (later known as the Acorn System 1). The one pictured on these pages was shipped on 9 April 1979. Also here is an Emulator for the computer, so you can try it for yourself even if you don't have the original hardware. It might also be useful as an educational resource, too, as it really shows how to program a computer at the hardware level (and with the mini-debugger you can watch the registers and other internal state changing as instructions are executed).

MemoWiki documentation snapshot. MemoWiki is a simple Wiki intended for personal documentation, research, and small-scale collaboration. It allows the viewing, editing, and maintenance of a collection of pages using just a web browser. To make it easy to support research, MemoWiki integrates its pages with academic references (which can be edited just as easily) and other files (such as papers, programs, and images).

NetRexx 2. Introduction, overview, and definition of the NetRexx programming language, version 2. From the Introduction: NetRexx is a general-purpose programming language inspired by two very different programming languages, Rexx and Java™.  It is designed for people, not computers. In this respect it follows Rexx closely, with many of the concepts and most of the syntax taken directly from Rexx or its object-oriented version, Object Rexx. From Java it derives static typing, binary arithmetic, the object model, and exception handling. The resulting language not only provides the scripting capabilities and decimal arithmetic of Rexx, but also seamlessly extends to large application development with fast binary arithmetic.
Also here are:

• The Preface from The NetRexx Language, M. F. Cowlishaw, ISBN 0-13-806332-X, Prentice-Hall, 1997.
• A presentation on NetRexx Internals
• A presentation on NetRexx Scripting for Java Applications.

PMGlobe, a program which displays the Earth as a globe on Windows 2000 (or later). It can be run as an application or as a screen saver.  ( PMGlobe for OS/2 and Palm Globe—for early Palm devices—are also here.)

STET – A STructured Editing Tool; Description and Users Guide. Davies, S. and Cowlishaw, M. F., IBM UK Scientific Centre, Version 2: 28th Dec 1980. From the Introduction: STET is a first attempt to take the structure out of the domain of languages, and into the domain of editors. In addition to conventional editing facilities, STET gives the user a third dimension: a tree structure that may be traversed using Program Function Keys much as scrolling is normally implemented...
See also the Wikipedia article.

IEEE 754-2008 errata. The current version of the IEEE Standard for Floating-Point Arithmetic (IEEE 754) was published in August 2008. Since then, some minor problems have been noticed; this page lists those that I am aware of, with suggested corrections.

.EXE Magazine interview—Mike Cowlishaw, by Alun Williams, Feature Editor, .EXE Magazine, July 2000. (This interview was completed but neither edited nor published because .EXE magazine ceased publication with the August 2000 issue.)

The Sirocco Microlight: a collection of information on the Sirocco Microlight, a single-seat ultralight aircraft which has a pusher propeller, tricycle undercarriage, and 3-axis flight controls. Includes a description and history, several articles and other references, and some links to images and videos.

The Spratt Controlwing Flying Boat—plans and construction notes. George G. Spratt's Controlwing flying boat was developed from 1939, with plans drawn up in 1972–1973. Bill Wolfe used these drawings to build N107GW in the late 1990s, and this page includes his annotated plans and an 84-page manual.

Long Marston R22 overhead join and circuits: an image showing flight tracks from a training session on 2008.10.29, departing to and returning from Shotteswell airstrip.

Terry Viner’s airfields: a collection of UK airfields and airstrips in GPS Exchange Format (GPX).