July 1 marked 150 years since the beginning of the Battle of Gettysburg, a crucial victory for the Union and a turning point in the Civil War. But it came at an enormous cost to both sides — thousands of soldiers were killed and tens of thousands more were wounded.
However, it might have been even worse had it not been for a surgeon named Jonathan Letterman, who served as the chief medical officer of the Union's Army of the Potomac. He presided over some of the bloodiest battles in U.S. history and, over the course of a single year, revolutionized military medicine.
Fulcrum Acoustic engineer Rich Frembes (left) and founder Dave Gunness pose in their workshop. The company produces more than 2,000 speakers a year, often testing and tweaking the units obsessively to meet each client's specific needs.
The headquarters of Fulcrum Acoustic is only an hour outside Boston, but finding the audio company can be tricky:Its address in Whitinsville, a quaint former industrial village in Massachusetts' Blackstone Valley, doesn't register on GPS. Fulcrum's founder, Dave Gunness, opened his workshop here five years ago and says people still have trouble finding it.
On-air challenge: You're given the three-word names of famous people. For each one, you get a clue to a familiar three-word phrase or title that has the same initials as the person. Name the phrase or title. For example, singer Billy Ray Cyrus has the initials B-R-C. And B-R-C are also the initials of the phrase "Blue ribbon commission."