71.   Now scientists are using the newer molecular information to design experimental drugs to act as guided missiles that aim to destroy only cancerous cells while sparing healthy ones.

72.   Nuclear weapons scientists could use it to hone their skills after an anticipated international ban on nuclear weapons tests.

73.   One of the main tools scientists use to sort out chronology is the measurement of magnetic orientation in rocks.

74.   Opponents of embryonic stem cell work say that scientists should use stem cells taken from adults.

75.   Other federal scientists used it to monitor sea quakes off the West Coast.

76.   Previously, scientists used an anti-amyloid vaccine or antibodies to prevent the deposits from forming or growing in mice.

77.   Scientists are using genetic engineering techniques to vastly speed the growth rate of Pacific salmon.

78.   Scientists are using that knowledge to try to understand why a failure in the cell cycle can be so catastrophic in cancer.

79.   Scientists are using the colors and textures of the rocks to help them decide which to study next.

80.   Scientists recently used the teraflop computer to simulate the split-second timing of a nuclear fusion experiment.