资讯

Five home gadgets you think you don’t need but are secretly great
Some tech, like a talking toothbrush, doesn’t seem like much when you first hear about it, but can become indispensable once ...
Captain Electro on MSN3 天
Shhh… Whisper's Gone Electric and the Skies Might Just Get Quiet…
Whisper Aero? More like "Barely Audible" Aero! These clever clogs went from building a leaf blower that whispers to foliage ...
Knowridge Science Report4 天
Why do electric aircraft engines sound so annoying—and how to fix it
As the world shifts towards greener air travel, electric and hybrid aircraft are becoming a key part of the future. But there ...
EurekAlert!5 天
Research reveals why next-generation engine noise grinds our gears
A breakthrough study has revealed why emerging electric aircraft engine technology sounds so annoying — and how to fix it.
Tech Xplore on MSN5 天
Why emerging electric aircraft engine technology sounds so annoying—and how to fix it
Scientists at the University of Bristol in collaboration with the University of Salford have uncovered the root cause behind ...
Mirage News5 天
Research Unveils Why Next-Gen Engine Noise Irritates
BLI ducted fan test rig inside the anechoic chamber at the University of Bristol, featuring a ducted fan mounted on the curved S-plate and an overhead ...
Drones, robots highlighted at China emergency disaster reduction and rescue expo
This photo taken on May 13, 2025 shows an unmanned helicopter used for emergency rescue at the booth of Chinese UAV ...