Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has ...
Theodore Gray. Black Dog and Leventhal (Workman, dist.), $19.99 trade paper (320p) ISBN 978-1-57912-895-1 Gray (Mad Science) blends science, art, and social commentary in this delightful and ...
GALLIUM IS an unusual element. It is a light, silvery metal, similar to aluminium. But unlike aluminium, if you hit it with a hammer it shatters like glass. It melts at about 30°C—in your hand, or ...
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