HEATKEYS

Boat design and boatbuilding projects, plans, concepts, reviews, and resources. Sailboat, multihull, powerboat, and yacht manufacturers and custom builders. Directory of yacht designers and naval architects, gallery of design work, and active boat de...

Extensive information on orbital mechanics, rocket propulsion and propellants. Includes spacecraft and launcher specifications and lists of space flights.

Free Directory of 7000 Market Research Companies, 990 Focus Group Facilities, 2500 Market Research Articles, Market Research Jobs, Events, Online Research +more

The Physics Classroom is an online interactive tutorial of basic physics concepts. The lessons use an easy-to-understand language to present common physics principles discussed in a first-year high school physics course.

JMP is statistical software for expert data analysis, DOE, and Six Sigma, from SAS. For Mac, Windows, and Linux.

International führender Wissenschaftsverlag - Wissenschaft, Technik, Medizin, Architektur, Wirtschaft und Verkehr - Zeitschriften, Bücher und EContent.

Apply a marketing process and access hundreds of free marketing tips to help grow your business.

Provides bandpass, sealed and vented subwoofer box design software and science, math and engineering programs and freeware

Bplans.com offers free sample business plans, business plan software, business calculators, and articles on writing a business plan, starting a business, and other small business topics.