eFunda, the ultimate online reference for the mechanical engineering community

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictiona...

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sit...

YouTube is a place to discover, watch, upload and share videos.

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear...

MathWorks is the world’s leading developer of technical computing software for engineers and scientists in industry, government, and education

Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.

Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they us...