Science Fiction Genetic Engineering

It is difficult to speak of specific examples of things genetic engineering may do for us. Specific examples always sound like stories out of Astounding Science Fiction magazine. Here are three long-range possibilities. First, the energy tree, programmed to convert the products of photosynthesis into conveniently harvested liquid fuels instead of cellulose. Second, the mining worm, a creature like an earthworm, programmed to dig into any kind of clay or metalliferous ore and bring to the surf...

 Broken Symmetry

The discoveries of recent decades in particle physics have led us to place great emphasis on the concept of broken symmetry. The development of the universe from its earliest beginnings is regarded as a succession of symmetry-breakings. As it emerges from the moment of creation in the Big Bang, the universe is completely symmetrical and featureless. As it cools to lower and lower temperatures, it breaks one symmetry after another, allowing more and more diversity of structure to come into exi...