1.   Manufacturers say they are safer because they use UVA rays and block the harmful UVB burning rays.

2.   Another technique is to heat the structure, using infrared rays, and watch for uneven warm-up or cooling, another sign of delamination.

3.   A custom-tailoring service uses light rays rather than a measuring tape to size up customers.

4.   The ballot is fed through a card reader that uses a ray of light to detect the rectangular holes and count votes.

5.   And a leader of the temperance movement wanted to use the rays to show drunkards the effects of demon rum on their bodies.