PBS has created this site as a companion to its recent five-part TV series of the same name, which covered scientific advances in the last hundred years in the fields of medicine & health, physics & astronomy, human behavior, technology, and earth & life sciences. Highlights of the site are the People & Discoveries database (a searchable and browsable annotated listing of over 50 people and over...

Now over 110 years old, General Electric played an important role in the worldwide adoption of many modern technologies. The company maintains this timeline of events and innovations that happened since its formation. Beginning with Thomas Edison's carbon filament lamp in 1879, the timeline briefly describes each entry and its significance. A picture and the occasional video clip are also...

The Institute of Electrical and Electronics Engineers (IEEE) History Center functions "to preserve, research and promote the history of information and electrical technologies." There are many resources on the center's Web site that provide an excellent perspective into some of the original breakthroughs in electrical design and the more recent advancements in computer technology. Historical...

The time-warp project is dedicated to preserving information about the advancement of technology. It currently focuses on specific innovations of the 20th century. The site lets users travel decade by decade through illustrated living rooms typical of the period. Technology is grouped into several categories, such as televisions, calculating machines, radio, photography, and telephones. For a...