Romanian inventions

system designed to rescue the crew of an aircraft in an emergency

tendency of a fluid jet to stay attached to a convex surface

engine that produces thrust by expelling reaction mass

variant of the Bunsen burner

Cerimetry or cerimetric titration, also known as cerate oximetry, is a method of volumetric chemical analysis developed by Ion Atanasiu. It is a redox titration in which an iron(II)–1,10-phenanthroline complex (ferroin) color change indicates the end point. Ferroin can be reversibly discolored in its oxidized form upon titration with a Ce4+ solution. The use of cerium(IV) salts as reagents for volumetric analysis was first proposed in the middle of 19th century, but systematic studies did not start until about 70 years later. Standard solutions can be prepared from different Ce4+ salts, but of

thumb|250px|Original presentation of Gerovital Gerovital H3 (or procaine hydrochloride and products known as GH3 and other variants, which may or may not be identical to Gerovital H3) is a preparation developed during the 1950s and promoted by its advocates as an effective anti-aging treatment. In the United States, the FDA bans Gerovital H3 from interstate commerce as an unapproved drug and, since 1982, has prohibited its importation.