Engineering

Development of a high flow rate cantilever fan

Cantilever fans move air through a flapping action, similar to hand-fans. Commercially available, they are combined with a piezoelectric bender, which provides their motive force. These fans are low noise, low power and have ...

Engineering

Liquid metal may point way to wearable ultrasound devices

The best-known byproduct of ultrasound—so named because its frequencies exceed the range of the human ear—is, in fact, not audio but visual: 2D imagery, often of a fetus maturing in the womb. But ultrasound has also found ...

Automotive

China auto sales off 22.4% in first half of 2020

China's auto sales rose 1.8% in June over a year earlier but fell by double digits for the first half of 2020 after the country shut down to fight the coronavirus, an industry group reported Friday.

Energy & Green Tech

Carbon emissions, energy flow charts for all U.S. states

Lawrence Livermore National Laboratory (LLNL) has updated its energy flow charts to include state-by-state energy use for 2015-2018. It also has released carbon emissions charts that depict a breakdown of all 50 states' carbon ...

page 12 from 18