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1. Hertzian Contact Calculators
A circle, line, and two different elliptical contact algorithms are implemented in the integral JAVA applet. When using these tool, a negative radius indicates that the center of curvature is outside of the body and a positve radius indicates that the center of curvature is inside the body. Because the program does not recognize (inf) or any such symbol for infinity, you must enter a significantly large number to approximate the condition of no curvature. The applet recalculates on each Enter key press.
2. Periodic Table of the Elements
A simple java script program for the periodic table.  Atomic number, name, mass, melting point, boiling point, and crystal structure are given.  As well as the standard family names, and state under standard temperature and pressure conditions.

3. A Units Conversion Calculator
Conversion factors are from the ASTM E380-93 Standard Practice for Use of the International System of Units, and there are obviously no warranties as to the accuracy of the conversions.


If you plan on using any of these online software tools, you must have an internet browser capable of running JavaTM.
Publication [F. L. publicat-, ppl. stem of publicare to publish]
1.a. The action of making publicly known; public notification or announcement; promulgation.
2.a. The issuing or offering to the public, of a book, map, engraving, photograph, piece of music, or other work of which copies are multiplied by writing, printing, or any other process; also, the work or business of producing and issuing copies of such works.

Oxford English Dictionary


The only end of writing is to enable the readers better to enjoy life, or better to endure it.

Samuel Johnson 1709-1784
English poet and lexicographer


Reading maketh a full man; conference a ready man; and writing an exact man.

Francis Bacon 1561-1626


I am convinced more and more day by day that fine writing is next to fine doing the top thing in the world.

John Keats 1795-1821