1928 introductions

Novial is an international auxiliary language (IAL) created by Danish linguist Otto Jespersen in 1928. It was designed to facilitate communication between speakers of different native languages. The name of the language is a blend of the Novial word novi (meaning 'new") and IAL.

instrument used for measuring ionizing radiation

notation of the Turkish language by means of a modified Latin alphabet

relativistic quantum mechanical wave equation

The theremin (; originally known as the ætherphone, etherphone, thereminophone or termenvox/thereminvox) is an electronic musical instrument controlled without physical contact by the performer (who is known as a thereminist). It is named after its inventor, Leon Theremin, who patented the device in 1928.

type of radio antenna

negative-pressure mechanically functioning respirator

communist term for social democracy

set of letters designed as the basis for Latin alphabets for the languages of Africa

1927 international exchange between the United States and Japan

non-convex polyhedron that cannot be triangulated into tetrahedra without adding new vertices