Comment Hand-waiving (Score 2) 75
> In an old building, there is a good chance that infrasound is present, particularly in basements where aging pipes and ventilation systems produce low-frequency vibrations
This was a long summary and offered no support for these claims.
Why would aging pipes *resonate* at sub-20Hz frequencies?
Why wouldn't modern pipes?
What about a metal "aging process" would cause this?
What are we to make of a "haunted" Scottish castle built 800 years ago?
Look, when I was five my parents' oil burner would kick off with a terrifying rumble, but I'm not making any building science claims here.