Some interesting links that I have found:

Search Engines:

Electrostatic Machines:

Other Sites About the History of Physics and Electricity:

Other High-Voltage Devices:

Electronics:

Digital libraries:

Hexaflexagons:

On-line Book Stores:

Dictionaries:

Metalworking (balls):

Patents:

Forums:

Old computers:


Created: 1996
Last update: 8 March 2014
Developed and Maintained by Antonio Carlos M. de Queiroz