Swedish experts have created a low-cost revolutionary speaker that can modulate many types of noise waves. Photo: EPFL Leucine: Swedish experts have created a speaker-like device that can absorb car, room and airplane noise to make it quieter. Experts from the Swiss Federal Institute of Technology have rated the silent speaker as 100% effective. It…
Even low-level noise can negatively affect performance in offices and schools by affecting brain function. Photo: File Stockholm: Experts have said after a study that noise in the workplace affects people’s ability to work, even if the noise level is less than 40 decibels. The sound of light rain can reach up to 40 decibels…
Traffic noise can cause an increase in blood pressure. Photo: File Beijing: Be warned, if you live near a busy road and traffic noise area, the noise can raise your blood pressure after a while. According to the Journal of American College of Cardiology (JACC), the relationship between traffic noise and blood pressure has been…
