noise reduction

The Earth is less prone to geological vibration thanks to ... Covid-19
The whole world suspends economic production to fight epidemics. Industrial machinery and transportation did not work, so the tremors were reduced by up to 1/3. This makes
Why is jet engine so noisy?
According to ScienceABC, people who live near the airport are more prone to stress, memory loss and even heart disease.
The brain has the ability to eliminate noise
One of the best features of a pair of modern headphones is the noise canceling technology, which removes ambient noise so you can fully immerse yourself in music.
Smart drain cover can be anti-theft
A high-tech company in China's Zhejiang province introduces smart drain covers that can prevent theft and reduce noise.
NASA builds electric planes
American Space Agency (NASA) launches new electric powered aircraft, equipped with 18 engines on the wing.
Japan brings noise reduction glass on the highway to Vietnam
Japanese highways have just been installed with tempered glass panels to reduce noise thanks to advanced technology from Nippon Steel & Sumikin Metal Products (NSMP).