hyperboloidal การใช้

Shukhov's first hyperboloidal tower was exhibited in Nizhny Novgorod in 1896.
The telescope had a small convex hyperboloidal secondary mirror placed near the prime focus to reflect light through a central hole in the main mirror.
The Junior and Senior Wardens do not have pedestals that they set on their sides; rather, they wear handle-less, hyperboloidal mallets ( similar to the gavel of the U . S . Senate ) on a chain round their necks, with which they strike the hilt of their swords.
This mirror matched the templates of the two null correctors to better than 0.014-wave rms wavefront error at 632.8 nm, and the Board has every reason to believe it is the correct hyperboloidal shape . " p4-6-- Talk 11 : 04, 26 June 2012 ( UTC)