Advanced   Some of the articles may contains words that those outside of the engineering world might not be too familiar with. Here are the words that are used throughout this issue. 151 . Pneumatic Of, relating to, or using gas (as air or wind); moved or worked by air pressure; adapted for holding or inflated with compressed air; having air-filled cavities. Found in Engineering The Perfect Sound . View Article 152 . Pneumograph An instrument for recording thoracic movements or volume change during respiration. Found in Lie Detection: The Science and Development of the Polygraph . View Article 153 . Polygraph An instrument for recording variations of several different pulsations (as of physiological variables) simultaneously. Found in Lie Detection: The Science and Development of the Polygraph . View Article 154 . Polyimide A synthetic polymeric resin of a class resistant to high temperatures, wear, and corrosion, used primarily as a coating or film. In Smart Ski technology, polyimides are used as a protective shell to encase internal piezoelectric ceramics. Found in Engineering a Smooth Ride: Creating the Perfect Ski Through Shaping and Vibration Damping . View Article 155 . Polymerase Chain Reaction Using Taq polymerase (a special heat-resistant DNA polymerase) and primers to amplify specific sections of the genome; the sections are replicated exponentially. Found in DNA Fingerprinting . View Article 156 . PORP An implant designed to replace a particular portion of the ossicular chain. Found in The Development of Ossicular Replacement Prostheses for the Treatment of Conductive Hearing Loss . View Article 157 . Potential difference Known in electronics as Voltage. Found in Ion Propulsion: Exploring Space in the 21st Century . View Article 158 . Potential Energy The energy possessed by a body on account of its position in a force field relative to a reference energy level. Found in Roller Coasters . View Article 159 . Precession A gyroscopic principle in which torque is distributed equally around a spinning body, preventing it from flipping or falling. Found in The Frisbee . View Article 160 . Prostheses An artificial device used to replace a missing body part. Found in The Myoelectric Arm: It's Electrifying . View Article   Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | Next

Home | About Us | In This Issue | Multimedia | Glossary | Archives | Contact © 2008. Illumin. All Rights Reserved. Disclaimer.