Atmospheric dust and acid rain
Article Abstract:
Scientists are puzzled because, despite the reduction of emissions of acidic air pollutants, acid rain still persists in Europe and North America. New findings show that atmospheric dusts also play a role in the process. These are needed because they act as bases and neutralize the acidity of rain.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1996
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The secrets of stardust: tiny grains of dust floating in interstellar space have radically altered the history of our galaxy
Article Abstract:
Analysis of the cosmic dust that is predominant in the universe reveals that there are three kinds of dust grains and they are very cold. Each piece of dust has a life cycle of 100 million years up to 50 times over. Analysis of the dust can reveal more about the origin of the universe.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 2000
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Attention-deficit hyperactivity disorder: a new theory suggest the disorder results from a failure in self-control. ADHD may arise when key brain circuits do not develop properly, perhaps because of an altered gene or genes
Article Abstract:
A genetic defect which causes the abnormal development of the right caudate nucleus and the globus pallidus are believed to be responsible for attention-deficity hyperactivity disorder in children.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1998
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