Here come the suns: stars with planets seem to harbor "heavy" elements

Article Abstract:

Astronomers speculate that stars with planets appear to have a considerably high concentration of heavy elements, a possible explanation for the puzzling patterns in the composition of parent stars. Others, however, doubt this theory, arguing that the above-average metal content of planet-bearing stars is an effect rather than a cause of planet formation.

Analysis, Astronomy, Observations, Solar system, Planets, Stars, Heavy metals, Structure

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Squirt and spin

Article Abstract:

The SciAm 50 Trends in Business, Policy and Research Award is given to the design of a printer that outputs silicon chips and the concept of a computer logic-gate design based on the spin of electrons.

Innovations, Printers (Equipment), Silicon chips, Materials scientists, Furusawa, Masahiro

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Making them whole

Article Abstract:

The SciAm 50 Trends in Business, Policy and Research Award is given to advancements in prosthetics that have led to the development of several artificial limb capability techniques.

Engineers, Kamen, Dean, Artificial limbs, Kuiken, Todd A.

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