Tech Directions - February 2008 - (Page 31) Electricity & Electronics Software For Windows Vista/XP/ 98 F New 2007-2008 programs for teaching digital meters F Topics from Ohm’s law to Op Amps F Works with any textbook or curriculum F Provides immediate feedback and grading F Teaches analysis and troubleshooting F Random variables assure varied experiences F Scores are printed or stored Free Trial CD! ETCAI Products • 800-308-0154 www.etcai.com info@etcai.com monthly marketplace More than Fun Answers Interlocking Heart Project 1. Cut arrow from close grain soft wood. 2. Cut heart from close grain hard wood and drill hole slightly smaller than arrow head. 3. Boil the arrow head in water until spongy. 4. Place heart over bench vise so hole is clear from obstruction. 5. Compress arrow head using hand clamp and drive through heart using mallet. 6. Sand any damaged area and apply finish. LUCIFER FURNACES Support Miller’s Crossing ARBOR SUPPORT OVERARM SADDLE UNIVERSAL VISE FOOTSTOCK TABLE FEED LEVER RAPID TRAVERSE LEVER MASTER SWITCH techdirections advertisers! They make your subscription to techdirections possible! And, be sure to let advertisers know you saw their ad in Telephone Scramble Word Challenge COFER FORCE SLUGN LUNGS EYROTH THEORY UTPOUT OUTPUT Red Devil Series Cost • Low Quality Top • Ideal for Schools, R&D • Easy to Operate • Harden, Draw & Anneal • Temps to 2200° F LUCIFER FURNACES, INC. (800) 378-0095 www.luciferfurnaces.com info@luciferfurnaces.com techdirections. When unscrambled, the letter in the squares should read: FOUR HOURS The difference? Four hours. Alexander Bell beat Elisha Gray to the U.S. Patent Office by a mere four hours. Gray contested Bell’s patent for years, but in the end lost his battle when the Supreme Court sided with Bell. Had Gray reached the patent office just four hours earlier that day, the subsequent history of the telephone would have been far different—the Gray System instead of the Bell System. DON’T MISS! Super Deal on Projects! See inside back cover MARKETPLACE www.techdirections.com 31 http://www.allelectronics.com http://www.gssteched.com http://www.etcai.com http://www.allelectronics.com http://www.acsupplyco.com http://www.acsupplyco.com http://www.badgergraphic.com http://www.tools4schools.com http://www.luciferfurnaces.com http://www.luciferfurnaces.com http://www.8020.net http://www.8020.net http://www.kelvin.com http://www.techdirections.com
Table of Contents Feed for the Digital Edition of Tech Directions - February 2008 Tech Directions - February 2008 Technically Speaking Contents Direct from Washington The News Report Technology’s Past Technology Today Mastering Computers How Engineers Engineer—Lessons from My First Big Engineering Project Tips on Creating Complex Geometry Using Solid Modeling Software Press to Test—Shop-Built BJT Checker Is Easy Cable Television Technician International Technology Education Association Conference—Teaching TIDE with Pride Professional Development Opportunities Product Central Free for the Asking More than Fun Tech Directions - February 2008 Tech Directions - February 2008 - Tech Directions - February 2008 (Page Cover1) Tech Directions - February 2008 - Tech Directions - February 2008 (Page Cover2) Tech Directions - February 2008 - Tech Directions - February 2008 (Page 1) Tech Directions - February 2008 - Technically Speaking (Page 2) Tech Directions - February 2008 - Contents (Page 3) Tech Directions - February 2008 - Contents (Page 4) Tech Directions - February 2008 - Direct from Washington (Page 5) Tech Directions - February 2008 - Direct from Washington (Page 6) Tech Directions - February 2008 - Direct from Washington (Page 7) Tech Directions - February 2008 - Direct from Washington (Page 8) Tech Directions - February 2008 - The News Report (Page 9) Tech Directions - February 2008 - Technology’s Past (Page 10) Tech Directions - February 2008 - Technology’s Past (Page 11) Tech Directions - February 2008 - Technology Today (Page 12) Tech Directions - February 2008 - Technology Today (Page 13) Tech Directions - February 2008 - Mastering Computers (Page 14) Tech Directions - February 2008 - How Engineers Engineer—Lessons from My First Big Engineering Project (Page 15) Tech Directions - February 2008 - How Engineers Engineer—Lessons from My First Big Engineering Project (Page 16) Tech Directions - February 2008 - How Engineers Engineer—Lessons from My First Big Engineering Project (Page 17) Tech Directions - February 2008 - Tips on Creating Complex Geometry Using Solid Modeling Software (Page 18) Tech Directions - February 2008 - Tips on Creating Complex Geometry Using Solid Modeling Software (Page 19) Tech Directions - February 2008 - Tips on Creating Complex Geometry Using Solid Modeling Software (Page 20) Tech Directions - February 2008 - Press to Test—Shop-Built BJT Checker Is Easy (Page 21) Tech Directions - February 2008 - Press to Test—Shop-Built BJT Checker Is Easy (Page 22) Tech Directions - February 2008 - Press to Test—Shop-Built BJT Checker Is Easy (Page 23) Tech Directions - February 2008 - Cable Television Technician (Page 24) Tech Directions - February 2008 - Cable Television Technician (Page 25) Tech Directions - February 2008 - International Technology Education Association Conference—Teaching TIDE with Pride (Page 26) Tech Directions - February 2008 - Professional Development Opportunities (Page 27) Tech Directions - February 2008 - Product Central (Page 28) Tech Directions - February 2008 - Product Central (Page 29) Tech Directions - February 2008 - Free for the Asking (Page 30) Tech Directions - February 2008 - Free for the Asking (Page 31) Tech Directions - February 2008 - More than Fun (Page 32) Tech Directions - February 2008 - More than Fun (Page Cover3) Tech Directions - February 2008 - More than Fun (Page Cover4)
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