A loud noise that startled residents in Clive and across the metro area was identified as a B-1 Lancer bomber from the Grand ...

Wintertime thunder is louder because of how sound travels through the atmosphere during colder months. Thunder is the sound produced by the rapid expansion of air following a lightning strike.

Or jackhammer, or chain saw loud. That’s what the Globe discovered at several of the T’s most infamously noisy sections, with help from a sound level meter that measured the decibel output of ...

That's better. Where was I? Ah yes. What makes the difference between a quiet sound and a loud sound? Well, it's all to do with the strength of the vibration. A weak vibration makes a gentle sound ...