Inuit languages really do have many words for snow, linguists found—and other languages have conceptual specialties, too, potentially revealing what a culture values ...

A special thread form keeps bolts and nuts tight under vibration by attacking the problem from a different angle.

The Thread File: A Money-Saving Tool In the process of the “custovation*” of a well used — and possibly abused — motorcycle, you’ll eventually be dealing with threaded hardware replacement. More often ...

This article was originally published with the title “An Improved Bolt-Threading Machine” in Scientific American Magazine Vol. 67 No. 12 (September 1892), p. 178 doi:10.1038 ...