Physical Constants: NIST database:

GILS: Global Information Locator Service:

National Oceanic and Amospheric Administration (NOAA):

Safety Considerations for Space Flight:

ISO: International Standards Organization:

Life Sciences Database:

NASA Cost Models for Space Missions:

 Dewey Decimal System Home Page:

Chemistry/Chemical Engg.
Chemical Sciences: Kinetics: Orders and Rate Constants

Penn Library-Chemical Engineering/Type/Data

Chemical Engineering Data Retrieval

U.S. Federal Government Agencies

Matisse's Glossary of Internet Terms


Pratt&Whitney Engine Gallery

Engine Data Provided by Pratt&Whitney Co., Marketing Dept.
Engine Specs Table - 1
Engine Specs Table - 2
Engine Specs Table - 3
Engine Specs Table - 4
Engine Specs Table - 5

Space Science

Space Image Libraries
Space Explorer's Guide
Space Data Resources and Information
Chandra: X-ray Astronomy Guide

Hubble Photos

Handbook of Space Astronomy and Astrophysics

Earth-Crossing Asteroid Web Page: