All news on the topic: Thomas Edison

According to an auction house which specialises in historical artefacts, the menu was for a banquet held in Beijing on 19 October 1956 and marked the first state visit to China by Pakistan's Prime Minister

Here's a list of must-see places to travel to this season

New federal energy efficiency regulations that came into full effect this week mean incandescent bulbs will soon be a thing of the past as they are replaced nationwide by LED technology