I am seeking contributors for a 5-volume encyclopedia on the social history of technology and invention.

The encyclopedia, to be published by Facts On File, will be a history reference focusing on the cultural, social, and economic impact of each invention. This encyclopedia will be a work of history, not a technical or scientific reference, and is intended for general audiences.  Each article will be between 1,500-3,000 words in length. Contributor's name will be included with the article and in the list of contributors.