www.science.about-sites.com

Electronic, thermal, and steric data along with an isotope table.

Basic information, atomic structure, and isotopes.

Atomic structure, chemical and physical properties, and table of nuclides.

Basic physical and historical information.

History, properties, uses, and production.

Physical data, chemical properties, health and environmental effects.

Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).

Source, uses, general and physical information, and key isotopes.

Properties of the element, including its history, applications, and characteristics.

Information on the biting louse, Damalinia caprae, and the sucking louse, Linognathus stenopsis, their biology and life cycle.

Photographic article on these creatures.

Information from wikipedia on these wingless insects that are external parasites of mammals and birds.

Classification, illustrations, and range maps of Australian lice.

Information and illustrations of lice from an Entomology course at N.C. State University.

Taxonomy of human lice, scientific meetings, announcements, list of phthirapterists, collections, and louse resources.

Classification and phylogeny of lice from the Tree of Life project.

The characteristics of these wingless insects, their life cycle, feeding and habitat, with illustrations.

Inspired by the Wisdom-Teaching of Avatar Adi Da Samraj, Fear-No-More Zoo gives us an opportunity to appreciate animals in their natural state of Contemplation. The way the animals are related to awa

Use abstracts to find the holdings of zoos and other institutions of many wild species, including amphibians, birds, fishes, mammals and reptiles.

Sara raises the baby cats at the Nashville zoo. Many pictures and information about zoo keeping, becoming a zoo keeper, training and education.

World news about animals, zoos and conservation, virtual zoo with photos and descriptions of animals, and online games.

A conservation, education, research and animal welfare society covering South Asia and India. Includes overview of zoos in the region, database of detailed animal information, research and conservatio

Zoo professionals present online animal exhibits. Compares standardized descriptions of animal exhibits and includes a list of firms/products/services/technologies for zoo design and construction.

Interactive (Javascript) expression of a number as a sum of two squares.

A test for the terms of a sequence being expressed by a polynomial, by Roupam Ghosh.

Activated text by Andrew Granville.

A loosely defined group of individuals, mainly in Canada, active in research in Number Theory.

A unified approach to covering systems, restricted sumsets and zero-sum problems by Zhi-Wei Sun.

With notes on Carmichael numbers and the life of R.D. Carmichael.

Number Theory section of the sci.math FAQ list.

Some notes from the MIT collection. Includes Gosper's algorithms for CF arithmetic.

Addresses the question whether a series of rational functions converges to a rational number.

To determine linear integer dependence among numerical constants and to determine the minimal polynomial of an approximate algebraic number. Interactive or via email.

A web article with a brief history and account of their relationship with the Riemann zeta function and Fermat's Last Theorem (HTML/PS).

Textbook covering following topics: compositions and partitions; arithmetic functions; distribution of primes; irrational numbers; congruences; diophantine equations; combinatorial number theory; and

Examples and algorithms for computing Klein polyhedra, also known as Arnold sails or veils (voiles), by Keith Briggs.

That the Mahler measure of an algebraic number is bounded away from 1. Pages by Michael Mossinghoff, UCLA.

Michel Waldschmidt. Cetraro summer school lectures, July 2000.

Kevin Brown's collection of sci.math postings related to number theory topics.

Index to articles in Eric Weisstein's MathWorld in the area of number theory.

A paper by David M. Russinoff describing the use of the Boyer-Moore theorem prover in mechanically generating a proof of the Law of Quadratic Reciprocity. PS/PDF.

Lecture notes by Alain Connes.

Proofs along with equation solvers and graphical views written in Java.

Dave Rusin's guide to number theory.

Aims to collect donations from supporters of number theory and to disburse these donations to encourage research.

Compiled by Robert Campbell.

Given an integer sequence, find its name, and formula.

Email seminar on "Galoissche Theorie der p-Erweiterungen" by Helmut Koch.

Lecture notes and resources on combinatorial number theory by Terence Tao.

Products of rational functions of p over primes, computed by Gerhard Niklasch and Pieter Moree.

Related to Somos sequences and elliptic theta functions.

Algorithm and source code for the calculation of square-free numbers and gaps.

Maple worksheets, lecture notes and links to other resources by John Cosgrove.

A forum for all mathematicians who work in valuation theory or apply valuation theoretical results in their own field of research.

By Paul Garrett.

By Peter Borwein and Loki Jörgenson. Recognising number patterns visually.

Thesis, papers, manuscripts, letters and bibliography.

The 196 Palindrome Quest and The Most Delayed Palindromic Number, by Jason Doucette.

Section of the U.S. Department of Energy (DOE) providing statistics, data, analysis on resources, supply, production, consumption for all energy sources.

Collections of scientific and technical information from the U.S. Department of Energy (DOE) with a distributed searching capability.

Access to a collection of scientific and technical information from U.S. Department of Energy (DOE).

Data summary for world energy production, consumption, price and carbon dioxide emissions.

Free encyclopedia article explaining the scientific notion of energy. Includes units of measure, energy transformation concepts, types of energy, history and uses.

News articles, periodic tables, educational resources, newsletters, and annotated links.

Discussion boards for all areas of chemistry, at levels ranging from high school to graduate school and practicing chemists. Site also includes web directory, periodic table, articles, and reference t

Site designed to help people find and learn how to use chemical information resources on the Internet and elsewhere. Email discussion list available.

Weblog explains the relationship between chemistry and real life to non-chemists.

A fairly comprehensive list of frequently asked questions and answers about chemistry and related topics.

Environmental sampling/safety equipment and supplies for sale or rental.

Specializes in developing environmental and safety compliance and training guides for motor vehicle/equipment maintenance operations. Site describes guides, audits and videos available.

Dragout/Rinse/Reclaimer product to control metals from entering the waste stream in the plating operation. Controls the plating bath at the same time.

Consulting services, catalysts, and other products for air and water pollution control.

A full service testing lab performing vibration - including on-site, shock, thermal, salt-fog and other environmental testing and analysis.

Sell environmental products including books, maps, and CDs.

Directory of U.S. environmental contractors, laboratories, consultants, drillers, surveyors, and related suppliers.

Manufacturers of phase separation technology (tower packing, mist eliminators, carbon bed supports, liquid coalescers) for chemical production and air and water pollution control.

Daily news and product updates for professionals in the pollution control industry. Information on manufacturing, technology, equipment, supplies, and discussion forums, online chat, newsletter and so

Sales and rental of new and used environmental equipment, including remediation equipment for environmental sites and custom environmental remediation systems.

Environmental containment linings. Specialty fabrication of tanks, manholes, trench drains, and sumps. Floating covers. Baffle curtains. Drop in PVC tank liners.

Manufacturer of over 500 environmental products for industrial wastewater treatment, indoor air purification, and other applications.

Manufactures environmental abatement equipment and heat recovery systems. Provides engineering and testing services to industries emitting volatile organic compounds (VOCs). Custom designs equipment f

Markets waste management and related environmental technologies developed by government researchers. Products include in-situ VOC probes, wastewater modelling software, field test kits for contaminant

Software for railway vehicle dynamic calculations. To optimize wheel profiles and rail influence running behaviour.

The product is designed to make calculating easy and faster for any user or company looking for a Customized Calculating Solution.

Provides services for the conversion of hardcopy drawings into digital form along with database and application development. Maps and drawings can be converted into vector or raster digital format. De

CFD Software to simulate fluid flow and heat transfer.

Sells programs to compute clearance rates and GPS in Autocad. Located in Missoula, Montana, USA.

Software developers and Consultants for numerical calculation of flow, gas dispersion, combustion, flames, soot, radiation, fires and explosions. Description of business, programes and references.

Developers of COMSOL Multiphysics (formerly FEMLAB) an interactive environment for modeling and simulating scientific and engineering problems.

Develops DynWiz, a multibody dynamics simulation program used in the aerospace, automotiv, biomechanics, and robotics industries. It runs on Sun, HP, SGI and PC.

Electronic documentation system for manageing changes to engineering procedures or designs. Sinplifies and automates the request, approval and implementation stages of a ECN. Company and program descr

Produces engineering training and promotional applications on CD-ROM and the Internet.

General utility with modules covering mechanical, electrical, and structural engineering.

Tools for modeling, control design and hydraulics for different development environments such as Mathcad, VisSim, Matlab and MS-Excel.

Specializes on products and services for engineering and postprocessing. Advanced visualization tools (TecPlot, EnSight) for engineers and researchers using computational methods to study physical phe

Software assistant for thermal spray coating. Description of program and its theoretical background. Download available.

Links to shareware and freeware engineering programs.

Motion analysis systems to record. measure, and analyze motion.

Describes research for system solutions for mobile applications. Also describes technologies such as wireless networks and speech recognition.

Community Noise Software based on ISO 9613. Description of programme features with screen shots and pricing.

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