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#atmos#few#working#fluid#got#sister#viii#present#years#took

Discussion (3 Comments)Read Original on HackerNews

dmitrygr•about 1 hour ago
I got my sister a Atmos VIII as a present a few years back, and it took us a few attempts to get it running at the proper speed via the adjustment lever. Now it gloriously stands there, never needing to be touched to keep time.
s0rce•about 3 hours ago
I wonder why Chloroethane / ethyl chloride was chosen. I don't think I've ever seen this for anything, other than a synthesis precursor to useful stuff.
Cerium•about 2 hours ago
My guess: it is a relatively safe compound with the right properties to act as a working fluid for this movement. The text linked below mentions the working fluid and the property that the vapor pressure is highly variable over the range of normal room temperatures.

Here is a document with details and history about these clocks: https://www.physics.rutgers.edu/~matilsky/documents/Atmos/At...