Once restricted to laboratories, lasers are now essential for many consumer applications. These include video game consoles, CD players, laser printers, laser pointers, laser hair removal, laser dentistry and more. In the image at right, the golfer wears the O'Beam on the visor of his hat. The device places a laser beam on the ball (see image below) to help the golfer improve his game. (Photos courtesy O'Beam golf)One of the coolest gadgets on the market today is a laser alignment tool called the Lino L2. It can be used for aligning picture frames, the kitchen sink or anything else in housing design and construction that might need aligning. It can be used for land surveying as well. Another interesting device helps golfers improve their short-range game. It's called the O'Beam. It is a laser pointer that attaches to the visor of a hat. As a golfer tees up, he can see the beam on the ball. This helps the golfer steady his head. Another laser golf training aid, the Laser Putting Alignment System, or LPAS, sits on the ground and provides feedback on targeting, club face orientation and ball impact zone.View more of David's blog entries here