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Jefferson Lab

HowStuffWorks explains hundreds of subjects, from car engines to lock-picking to ESP, using clear language and tons of illustrations. We do the resear

For the student or professional - famous inventors and inventions - history timelines - patents trademarks and copyrights - manufacturing resources - interviews with successful inventors - understanding the business of how to sell or license your new...

Groundbreaking developments in science, space, technology, health, and the environment

The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award-winning expertise in content, community services, expert co...

Laser measurement products including laser rangefinders, speed guns & industrial sensors. Measure distance, height, speed, azimuth, position, diameter

Weight loss, video workouts, workout playlists, diet and nutrition, food and recipes, health and beauty from the experts at FITNESS magazine.

WikiAnswers: Questions and Answers from the Community

A worldwide leader in laser alignment & calibration technology for over 35 years, we design, manufacture, sell and service a wide range of systems, laser alignment tools and machines to satisfy virtually any application.

wiseGEEK: clear answers for common questions

Epilog Laser engraving equipment for etching, cutting, and marking systems - affordable, easy-to-use, and versatile.