Good News Notes: “Trailing-edge noise is the dominant source of sound from aeronautical and turbine engines like those in airplanes, drones, and wind turbines. Suppressing this noise pollution is a major environmental goal for some urban areas. In Physics of Fluids, by AIP Publishing, researchers from Xi’an Jiaotong University used the characteristics of owl wings to inform…
Tag: airplanes
Will electric planes take flight and help cool a warming planet?
Good News Notes: “Jeff Bezos, the Amazon founder and Washington Post owner, announced on Monday that he was donating $10 billion to save the Earth’s environment – barely a month after it was revealed Amazon threatened to fire employees who spoke out about the company’s role in the climate crisis. The new Bezos Earth Fund…