a111: Logged on 2019-01-04 17:15 asciilifeform: in other olds, apparently i slept through this, but in early 2000s some ru d00d actually built a ~non-grazing~ lens for xray. for pennies, at that.

a111: 1 result for "xray lens", http://btcbase.org/log-search?q=xray%20lens