Lighthouses on land and in the sky

Matteo Luccio When Boston Light — an 89 ft-high, white lighthouse on Little Brewster Island in Boston’s outer harbor — opened in September 1716, it was the first one in the Thirteen Colonies. Sally Snowman, who has been its keeper…
Webinar confronts land warfare’s reliance on GPS

A U.S. soldier preparing his Blue Force Tracker before departing Camp Victory, Iraq in 2005.(PHOTO: Petty Officer 1st Class Brien Aho, U.S. Navy) A free GPS World webinar, sponsored by Orolia and taking place at 1 p.m. EDT on Thursday,…