TDOA (Time Difference Of Arrival) positioning technology, as a method to determine the position of the object to be located based on the signal arrival time difference, its core lies in the ...

Unexplained loud boom in Blount County, TN remains a mystery; not linked to power outages or seismic activity.

The idea is that the pressure waves of a sonic boom could be redirected away from the ground by using the properties of the Earth’s atmosphere. The Mach cutoff effect uses the atmosphere itself ...

The National Folk Festival, the nation's longest-running traditional arts event, kicks off its three-year Jackson residency in November 2025.