Mike's Electric Stuff (Tesla coils, valves etc.)
The High Voltage Page High voltage experiments and power supply designs.
Dangerous LaboratoriesScience and alternative energy projects.
Museum of Electricity Antiques and high voltage.
Vacuum Technology Vacuum Techniques.
The Virtual Valve Museum.Virtual museum of all types of vacuum tubes.
Glenn Baddeley - Valve Data. Valve database links.
Control The Nuclear Power Plant. A nuclear power station simulation by Henrik Eriksson.
Patently Absurd! A humorous collection of crazy British patents.
Ulster University Downloadable graph paper.
Mathematics Help Central. Graph paper and graph paper printer program.
Periodic table table. This site is fantastic.
Science Toys. Some very good ideas here for all ages.
Printed Circuit Boards for the Masses. Interesting method for making PCBs.