Comprising 395 essays arranged alphabetically, mostly on individual objects, artefacts, techniques, and products, this is an up-to-date work of reference for all those involved in teaching or researching the history of twentieth-century technology. For a full list of entries, contributors, and more, visit the Encycloped ia of 20th-Century Technology website.William Shockley, demonstrated the first transistor, a semiconductor device based on germanium. ... Semiconductors were interesting to the radio and telephony industry because of their ability to rectify electrical current (allowing current to flow ... Bardeen also suggested replacing silicon with high-purity germanium that made better rectifying contacts. ... Inner competition broke the Bell Lab team apart, but their invention was of great importance for Bell, of which numerous patents andanbsp;...
|Title||:||Encyclopedia of 20th-Century Technology|
|Author||:||Colin Hempstead, William Worthington|
|Publisher||:||Routledge - 2005-08-08|