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Includes British and international sundials with description and exact location; sun compasses.

Jokes about the professions of the twenty-first century: programmers, mathematicians, physicists, engineers, doctors, lawyers, accountants, psychiatrists etc.

Web site for Canadian potter, Steve Irvine

Paraxial and Seidel calculations, spot diagrams, ray fans, 3D wave aberrations and energy distribution, optical layout, optimization. (MS-Win, free crippled version ...

Our mosaic tiles are hand cut from natural colored marble and mounted on mesh for easy worldwide delivery. We offer marble, granite, quartz and ceramic mosaic tiles.

Software to design a vertical (wall mounting) sundial for walls that face up to 60 degrees away from due-south.

Offers handmade mosaics primarily using first-class Venetian Murano glass smalti. Portraits, medallions, and floor work included.

Describes sundials that can tell sunrise and sunset times, the angle of solar declination and the time at night. (Flash based site).