HEATKEYS

How to build your own; ROV, Submarine, Sailboat and tips on metal working including, Metal Casting, Welding.

Popular Mechanics is a service magazine covering a variety of information on home improvement, automotive needs, electronics, computers, telecommunications, outdoors, fitness and science and technology. Popular Mechanics also features product evaluat...

A Green Design Blog, Sustainable Design Blog, Future-forward design for the world you inhabit - your daily source for innovations in sustainable architecture and green design for the home.

Reference.com - Free online encyclopedia and reference. Quickly research famous people, places, topics, and events from trusted sources.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Submobile is a homemade, two man submarine. Uses rocket fuel to blow ballast.

National Geographic provides free maps, photos, videos and daily news stories, as well as articles and features about animals, the environment, cultures, history, world music, and travel.

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

The official web site of the Heiszwolf family, Page created by Johan J. Heiszwolf, June 25 2004

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and culture at Wired.com.