Word: fainter
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Dates: during 1990-1999
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...argon, an inert gas. Then the case will be hung horizontally at the intersection of the Turin Cathedral's nave and transept, near the center of the cathedral's built-in cross. And thus six days after Easter, spectators will be allowed to view an image that has grown fainter with each unveiling: the portrait of a dead...
...fate of neurons in the spinal cord and the brain. Like a strong scent carried by the wind, the protein encoded by the hedgehog gene (so called because in its absence, fruit-fly embryos sprout a coat of prickles) diffuses outward from the cells that produce it, becoming fainter and fainter. Columbia University neurobiologist Thomas Jessell has found that it takes middling concentrations of this potent morphing factor to produce a motor neuron and lower concentrations to make an interneuron (a cell that relays signals to other neurons, instead of to muscle fibers, as motor neurons...
...expansion factor is calculated by measuring the distance from our galaxy to other galaxies (something difficult to do) and determining how fast that distance is increasing (an easier task). Scientists look for particular kinds of stars, called Cepheid variables, because they know the inherent brightness of these stars. The fainter they appear here on earth, the farther away they are, and the distance can be roughly calculated. As researchers find Cepheids farther and farther away, calculations of the Hubble constant become more and more accurate...
...make recommendations on how to cover the remaining uninsured. If Congress failed to take action, a provision would take effect in 2002 requiring employers in companies with more than 25 workers to pay 50% of their workers' insurance costs. That two-stage procedure manages to acknowledge Clinton's ever fainter insistence on universal coverage while it offers Congress one of those agreeably far-off target dates -- the turn of the century, no less -- that lawmakers cherish...
Burrows is less confident about his explanation for the fainter, outer hoops: right next to the shining supernova is a very faint object that may be a tightly compacted neutron star, the remains of an earlier supernova explosion. If so, it could, like other neutron stars, be spewing out twin beams of fast-moving particles. The particles, slamming into the hourglass- shape gas cloud, could have created rings that glowed more brightly after the more recent supernova went...