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Is the Human Genome project complete? How is the current technology advancing in comparison to the predictions made in Visions
Visions page 304 said:...replacing the clumsy (and potentially dangerous) ceramic tiles that make up the heat shield of the Space Shuttle. (During reentry into the atmosphere, when the Space Shuttle experiences blistering temperatures created by air friction, the loss of a few of these precious tiles could cause a catastrophic penetration of the hull. Engineers have been known to cross their fingers during reentry and pray silently, hoping the tiles don't come loose.)