71.   With this, the gums and tongue are protected and a special light is used to activate the hydrogen peroxide gel.

72.   X-rays use radioactive light to penetrate tissue yet review only shadows in the body like bones, air gaps, water and metal.

73.   You can get ideas on using recessed lights from home-fashion magazines and books or by visiting a lighting center.

74.   Quasars can shine with the brilliance of a trillion suns and astronomers can use this light to silhouette objects nearer Earth.

75.   A CCD typically uses reflective light that bounces off an image and through the lens into the CCD scan head.

76.   A neighbor heard him yelling and called police, who used lights to scare off the gators and freed Currens.

77.   Drivers used their lights at midday, schools were closed and some residents used hospital masks to protect their lungs.

78.   Elson and Prescot had one other small victory in the morning when they carried out an ingenious repair to their satellite phone using the light from their on-board toilet.

79.   It is also recommended seniors see an eye doctor once a year and use night lights.

80.   Lights have been used successfully in Australia but in South Africa the fielding sides have complained of difficulty in spotting the ball.