Sources Experts & Spokespersons
International Dark-Sky Association
Concerned with stopping the adverse environmental impact of light pollution and space debris.
Sources Select Resources
For 90 years, lightbulbs were designed to burn out. Now that's coming to LED bulbs
In 1924, representatives of the world's leading lightbulb manufacturers formed Phoebus, a cartel that fixed the average life of an incandescent bulb at 1,000 hours, ensuring that people would have to ...
The City in History
Its Origins, Its Transformations, and Its Prospects
Beginning with an interpretation of the origin and nature of the city, Mumford follows the city's development from Egypt and Mesopotamia through Greece, Rome, and the Middle Ages to the modern world.
Sources is an online portal and directory for journalists, writers, news editors, researchers. Use Sources to find experts, media contacts, spokespersons, scientists, lobbyists, officials, speakers, university professors, researchers, newsmakers, CEOs, executive directors, media relations contacts, spokespeople, talk show guests, PR representatives, Canadian sources, story ideas, research studies, databases, universities, colleges, associations, businesses, government, research institutions, lobby groups, non-government organizations (NGOs), in Canada and internationally.
© Sources 1977-2016. The information provided is copyright and may not be reproduced in any form or by any means (whether electronic, mechanical or photographic), or stored in an electronic retrieval system, without written permission of the publisher. The content may not be resold, republished, or redistributed. Indexing and search applications by Ulli Diemer and Chris DeFreitas.