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Science News for October 19, 2000


Flying low-drag trucks: aerodynamic concepts & controls developed for aircraft will cut fuel use, improve control, in tractor-trailers

Researchers at Georgia Tech have applied aerodynamic concepts from aircraft to tractor-trailers, reducing drag by up to 50% and improving directional control, traction, and braking. The Circulation Control system uses compressed air to create lift and reduce rolling resistance, with potential fuel savings of up to 12%.

Researchers measure distinct characteristics

A Vanderbilt University research team has identified specific acoustic characteristics in the voices of individuals who have attempted or completed suicide. These findings suggest a potential new method for assessing suicidal intent and could be a valuable tool in preventing suicidal deaths.

SourceVanderbilt University·JournalIEEE Transactions on Biomedical Engineering·DateOct 19, 2000