What goes up could come down
Article Abstract:
A new laboratory model of explosive volcanic eruptions should help volcanologists to understand why some parts of an eruption column rise while other parts fall and sometimes cause catastrophic destruction as happened around Mount Pinatubo in 1991. A.W. Woods and C.P. Caulfield devised the model by injecting buoyant mixtures of different organic solvents into tanks of water. This procedure determined the eruption rate required to keep an eruption column aloft. Hence this technique may help to foresee devastating volcanic eruptions.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Where do babies come from?
Article Abstract:
Physician and scientist William Harvey, who lived between 1578 and 1657, made the first accurate description of the circulation of the blood. However, his particular interest was reproduction. He became physician to King Charles I, and this allowed him access to deer hunted in the royal forests, parks and chases. His studies of the generation of deer led to the publication in 1651 of 'De Generatione Animalium' ('On the Generation of Animals').
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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As weird as they come
Article Abstract:
Richard Nelmes and colleagues have reported the crystal structure of a metal barium using x-ray diffraction. The structure is described as having two parts with differing periodicity, a guest structure inside a host structure. In barium IV both the gest and host are made from the same pure element. Each host atom has around nine close neighbours, while each guest atom has around 10 near neighbours.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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