X-Nico

unusual facts about Allen V. Heyl



Aheylite

It was first described for an occurrence in the Huanuni mine, Huanuni, Oruro Department, Bolivia, and named for Allen V. Heyl (1918–2008), an economic geologist for the United States Geological Survey.

Segregation academies

Allen v. Wright, a 1984 U. S. Supreme Court case challenging public subsidy for private schools that are effectively segregated.

Shortt-Synchronome clock

This clock was purchased in 1929 and used in physicist Paul R. Heyl's measurement of the gravitational constant.


see also