minus-square843563115848@lemmy.ziptoYou Should Know@lemmy.world•YSK: The Invention Secrecy Act is a US federal law authorizing the government to suppress disclosure of certain inventions for reasons of national security. 6,543 inventions are currently suppressed.linkfedilinkarrow-up6·16 days agohttps://en.wikipedia.org/wiki/Ring_laser_gyroscope linkfedilink
minus-square843563115848@lemmy.ziptoDIY@slrpnk.net•Success removing flaking enamel with needle scalerlinkfedilinkarrow-up5·1 month agoI hope you had earplugs or better, that must have been loud as hell! linkfedilink
https://en.wikipedia.org/wiki/Ring_laser_gyroscope