Artificial Intelligence is a field of science that has several goals. The first, often called "weak" AI, is the effort to design and implement computer systems that can perform tasks requiring intelligence when performed by humans. AI in computer games, knowledge based systems and such are typical examples of this branch. The second, less tangible branch, often called "strong" AI, is the research that ultimatly aims to build artificial systems that display real intelligence. It does this by trying to understand or model the nature of human intelligence. Both branches are multidisciplinary, in that they have close relations with the fields of computer science, philosophy, medicine, psychology, biology and linguistics.

A prescribed finite set of well defined rules or processes for the solutions of a problem in a finite number of steps. Explained in simple English, it is the mathematical formula for an operation, such as computing the check digits on packets of data that travel via packet switched networks.

Robotics is a term coined by Isaac Asimov to describe the field of science involving robots and related technologies. So what is a robot? The word comes from a 1923 Czech play called R.U.R. and described autonomous, humanoid robot servants. The original Czech word was robota, which means "servitude or forced labor". According to the Syrius Cybernetics Corporation of Douglas Adams' Hitchiker's Guide to the Galaxy, a robot is "your plastic pal who's fun to be with". A more conventional definition is, "A mechanical device that sometimes resembles a human and is capable of performing a variety of often complex human tasks". There are many other definitions, some a bit too narrow and some far too broad. We try to be as inclusive as possible, accepting sites about hobby robotics, industrial robotics, even those about the radio-controlled entertainment vehicles of "Robot Wars". Enjoy our selections. And if you don't agree with some of our choices, rest easy in the knowledge that someone else out there wouldn't agree with yours.

This category deals with all things pertaining to the technology, theory, and science of aeronautics. Here you will find sites that describe the technical aspects of flying, aviation and aeronautics.

The science and technology of growing living things (plants and animals) for human consumption or use as pets, ornament, food, fiber, or construction material. Includes Forestry, Horticulture and Soil Science.

Cognitive science topics which may span one or more specific sciences including psychology and medicine. Sites, works and indices that assume a scientific model in their processes, references or information gathering and summary.

Known by other scientists as the "Dismal Science," this field makes a serious effort to study and describe:

The production, distribution, exchange, and consumption of wealth and the various related issues (problems) of labor, finance, taxation, currencies, the political arena as it relates to the above areas of goods and services.

Although interest in economic theories dates to the origins of commerce itself, economics as a modern study independent of moral or political philosophy is attributed to the Scottish writer Adam Smith (1723-1790). The ideas put forth in his seminal work, Wealth of Nations, form the basis of "classical" economic theory and free-market capitalism.

Math or mathematics is the study of numbers and variables representing numbers to solve everyday problems, learn about the world around us or to be an exercise in logical reasoning.

Some applications of math are in the areas of finance, physics, sociology, computer programming, fractal music and geometric art.

Meteorology is the branch of science which studies weather. It is often an inexact science, especially when forecasting is involved, so that predictions often are stated as a percentage of probability. Listings here should concern the scientific practice of meteorology, information about weather events of historical interest, meteology as a hobby, and some instruments and products which either facilitate scientific meteorology or come from that background. Listings related to finding or reporting weather news should go to News: Weather.

A collection of scientific resources about the motion of fluids like liquids and gases.

"Physics is the study and application of the fundamental laws of nature, including the laws of motion, gravity, electromagnetism, heat, and microscopic interactions. These laws govern the behavior of objects at all scales, from the smallest subatomic particles to the entire observable universe. In between, physicists study nuclear reactions, the interactions of atoms with light, properties of solids, chaotic dynamics of fluids, and the evolution of stars and galaxies, among many other applications."

If this doesn't tickle your fancy, there is always the quote from Rutherford: "In science, there is only physics; all the rest is stamp collecting."

Critical evaluation of alternative science, paranormal phenomena, news reports about science, etc.