Michael N.
Well-known member
. . . and I was bored. This thing actually works.
Rainy day. . . .
- Thread starter Michael N.
- Start date
frofrofro
Active member
what is it?
Timbuck
Well-known member
i'ts a Barometer ! 
right.
right.
BobN
Well-known member
i'ts a Barometer !
Maybe a hygrometer?
Michael N.
Well-known member
Hygrometer indeed. That reading in the photo is 60% RH, straight down and it's close to 50%.
The indicator relies on both end grain and long grain wood laminated together, pretty much like a bi metallic strip.
The indicator relies on both end grain and long grain wood laminated together, pretty much like a bi metallic strip.
