[time-nuts] Optical link connects atomic clocks over 1400 km of fibre
csteinmetz at yandex.com
Thu Aug 25 03:33:42 EDT 2016
> As long as you don't saturate it, bend it, hit it or drop it.
And that is AFTER you form it to shape and then anneal it in a Hydrogen
You may (probably would) need several layers, perhaps of different
high-permeability alloys, with a thick outermost layer of soft iron.
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