Physicists demonstrate an actual tractor beam in the lab

It seems like we're getting closer to the Star Trek future by leaps and bounds these days. We recently learned that a NASA scientist has set his sights on building a warp drive, and now news has come in that a team of physicists have built their own tractor beam in the lab. Now, it's nothing to get too excited over —… » 10/24/12 2:40pm 10/24/12 2:40pm