News for hackers. Stuff that matters.

A comment on Scientists say you can cancel the noise but keep your window open. Parent comment

Re:Scientists say you can cancel the noise but keep your win... by vages on Saturday July 11, 2020 @03:19PM (#23804956)
Yes, it's not exponential. The sound level is inversely proportional to the square of the distance.
[ Parent | on HN ]
Re:Scientists say you can cancel the noise but keep your win... by gmantg on Saturday July 11, 2020 @03:24PM (#23805013)
This is 1/d^2. Exponential would be 1/2^d.
[ Parent | on HN ]
Re:Scientists say you can cancel the noise but keep your win... by anticensor on Saturday July 11, 2020 @03:48PM (#23805276)
It is actually between the two because sound is a material wave and air has friction.
[ Parent | on HN ]
Re:Scientists say you can cancel the noise but keep your win... by hwillis on Saturday July 11, 2020 @04:19PM (#23805546)
depends how far away you are.

https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Ex...

[ Parent | on HN ]