Engineering
It's no secret the U.S. Army wants its small unmanned aerial systems to operate quietly in densely-populated regions, but tests to achieve this can be expensive, time-consuming and labor-intensive according to researchers.
Dec 03, 2020
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Other
The wind blowing out at Wrigley Field. The tricky breeze in San Francisco. The heat in Los Angeles.
Jul 09, 2020
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4
Computer Sciences
Not convinced yet that keeping your distance and wearing a mask is worth the trouble? Perhaps scientific evidence to the contrary will help.
May 14, 2020
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Engineering
Anyone who looks to the stars also dreams of going to space. Turning this dream into reality depends on countless technological advances. One of these is new rocket and aircraft engines, which are becoming easier and cheaper ...
Feb 07, 2020
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80
Energy & Green Tech
Offshore wind power generation has become an increasingly promising source of renewable energy. Much about the aerodynamic effects of larger wind farms, however, remains poorly understood. New work in this week's Journal ...
Dec 12, 2019
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654
Hi Tech & Innovation
The Bloodhound, the darling of The Bloodhound LSR jet car project, has good reason to be praised as a speed rockstar, with speed now at 461mph (741km/h).
Nov 04, 2019 weblog
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127
Energy & Green Tech
Diesel engines are widely used in transport the world over. Regulatory and legal efforts are afoot to reduce their use in some countries because of concerns about pollution. However, they are likely to remain a mainstay of ...
Jul 30, 2019
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3
Energy & Green Tech
A new study has revealed how inspiration from owls' wings could allow aircraft and wind turbines to become quieter.
Jul 04, 2017
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