I could also investigate the material of the coil, which is another factor affecting the strength of an electromagnet. I could investigate this, by placing different materials, like iron, copper, and steel inside the core of the electromagnet, I would keep current and the number of turns constant.
For other video games with this title, see E.T. the Extra-Terrestrial in video games. E.T. the Extra-Terrestrial (also referred to simply as E.T.) is a 1982 adventure video game developed and published by Atari, Inc. for the Atari 2600 video game console. It is based on the film of the same name, and was designed by Howard Scott Warshaw.
D&E also made cobra belts for Omega, Gare, Calderon and Hobe'. Founded by William DeLizza & Harold Elster in NYC Frank DeLizza, son of William, is currently offering jewelry in some of their original designs. Info courtesy Cheri Van Hoover. DELROY - see Royal Bead. Deltah, Inc. Made artificial pearls, still in business as of 1988. DELTAH PEARLS -- established in 1892 by M.J. Karpeles -- see Imperial Pearl for current information Mark: Deltah first used in 1934