Janka hardness test understand which woods are harder than others. Janka hardness test The Janka hardness test (from the Austrian-born emigrant Gabriel Janka, 1864-1932) measures the resistance of a sample of wood to denting and wear. It measures the force required to embed an diameter steel ball halfway into a sample of wood. A common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring. The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the grain, is said to be of "side hardness". Testing
Janka Kulcsár the next year, she won a prize in the National Chamber Music Competition. Kulcsár works mainly with singers. She accompanied Marianna Sipos in the ARD International Music Competition in 2012. Founding member of the Moltopera Company since 2011. She accompanied among others Moltopera's production Don Giovanni, Magic Flute (in the Palace of Arts), Fledermaus, La Bohéme, Cavalleria Rusticana, Menotti's: The telephone, L'enfant et les sortiléges (in the National Theater of Pécs), and "How to survive an opera recital?" (in the Sziget Festival). Janka Kulcsár Janka Kulcsár (born 8 April 1985) is a Hungarian pianist and répétiteur, and a founding member