for example the transister|||THE MOST RELEVANT INVENTIONS, DISCOVERIES, ACHIEVEMENTS
http://www.vency.com/inventions.html
http://www.infoplease.com/ipa/A0004637.h鈥?/a>
http://www.factmonster.com/ipka/A0004637鈥?/a>
http://www.enchantedlearning.com/invento鈥?/a>
http://www.kyrene.k12.az.us/schools/bris鈥?/a>
WEB SITES ON INVENTORS AND INVENTIONS
http://www.cumbavac.org/Inventors_and_In鈥?/a>
Good luck.
Kevin, Liverpool, England.|||light bulb, television, telephone, morse code, sewing machine, polio vaccine, cotton gin, peanut butter, nuclear power, artificial heart, battery, canoe/kayak, computer, internet, adhesive bandage (Band-Aid), bulldozer, masking and clear adhesive (Scotch) tape, airplane, traffic light, gas mask, smoke alarm, bar (UPC) code
