ScienceAlert5 天
Hear The First-Ever Recordings of Sharks Actively Making Noises
In the murky depths of the ocean, one predator has a trait that exacerbates the dread it inspires as it slides through the ...
The Boston Globe11 天
Here’s where we found perhaps the screechiest MBTA train. It was ear-splitting.
Everyone knows the MBTA can be loud. Ever wonder exactly how loud ... using a Tadeto SL720 digital sound level meter. It recorded sound levels from the run-of-the-mill to the extreme.