ID Punch Pro
ID Punch Pro is your source for factory direct ID Card Punch Equipment.
http://idpunchpro.com

Rotation of Sun and Planets
The rotation period of a large body circled by one or more satellites can be calculated theoretically.
http://www.geocities.com/saeles/planetsrotation.htm

GK Punch and Die
Tool and die suppliers offering punch blanks, die buttons, retainers, springs, components, grinding, cutting and shaping.
http://www.gkpunch.com

Unittool Punch & Die Company
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http://www.unittool.com

Punch Press Services
Services to the sheet metal working industry. Providing alternative parts for Turrett and single head Punch Press Machines as well as a range of high quality tool grinding machines and laser consumables.
http://www.punchpressuk.com/

BackupAssist
Software designed to make it easy to implement tape backup rotation strategies easily. It provides scheduling, email notifications, and industry standard media rotation schemes.
http://www.backupassist.com/BackupAssist/

Pipelined phase-rotation FFT
By David O'Halloran. The Welchel phase-rotation FFT is a new form of the fast Fourier transform (FFT) that replaces data movement at runtime with equivalent multiplications by precomputed constants. The result is an FFT that is easy to pipeline.
http://www.cs.cmu.edu/afs/cs.cmu.edu/project/iwarp/member/fx/public/www/phase1.html

Electromagnetic Rotation
The experiments of Oersted, Faraday, Ampere, Sidorovich on electromagnetic rotation
http://sidam.at.tut.by

International Earth Rotation & Reference Systems Service
The NASA Jet Propulsion Laboratory IERS Special Bureau for the Oceans collects, calculates, analyzes, archives, and distributes data relating to non-tidal changes in oceanic processes affecting the Earth's rotation, deformation, gravitational field, and geocenter.
http://euler.jpl.nasa.gov/sbo/

Archaic Indian Punch Marked Coins
An article by Shailendra Bhandare on approaches to the classification of Archaic Indian punch marked coins.
http://www215.pair.com/sacoins/public_html/shailenspaper.htm