[Dixielandjazz] The divine sound of silence

[Bill Haesler]

macjazz wrote [in part]:
> They have created "Silent rooms" where there is no sound Kind regards,

Dear Mart,
They are called anechoic chambers.
I was involved architecturally with the design and construction of one 
for the Institute of Technology building here in Sydney back in the 60s 
and experienced the sensation of sitting in one.
Very eerie.
Some technicians, required to work in them, monitoring equipment under 
test, frequently fell asleep.
Some almost instantly.
Kind regards,
Bill