- Air Composition

gas composition of air

- Astro-physical Constants

solar system data, current moon phase, and more ...

- Coefficients of Friction

static and kinetic coefficients of friction for various materials

- Indices of Refraction

index of refraction for various materials

- Decimal Multiples & Prefixes

from a heptillionth to antonplex: decimal multiples, prefixes, symbols and common names

- Fundamental Physical Constants

most commonly used constants in physics and engineering

- Glossary

glossary of physics terms, dictionary of definitions.

- Greek Alphabet

all greek alphabet letter symbols, their names and english equivalents

- Humidex & Windchill Calculator

information on the Humidex and Windchill factors and a conversion calculator.

- Materials Safety Info

MSDS and other chemical materials safety data sheets

- Nobel Prize & Bruce Medal Info

current and past winners of prestigious awards in physics, astronomy, etc.

- Nuclear & Particle Data

electron, proton and neutron data, table of nuclides and more ...

- Periodic Table of Elements

interactive periodic tables of elements, chemical data, etc.

- Special Math Constants

- Archimedes', e - Natural Logarithmic Base, - Euler's

- Time Reference & Exact Time

USNO atomic clock current time, worldwide time zones, etc.

- Unit Conversion

conversion of imperial and US units to SI, and physical quantities conversions

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'The difference between what the most and the least learned people know is inexpressibly trivial in relation to that which is unknown.'**Albert Einstein**

(*1879-1955*)