The Discovery Of Parylene Conformal Coating

The pioneer of parylene conformal coating, Michael Szwarc, was born in 1909 in Bedzin, Poland, which was an urban, industrial town. His career began at the Warsaw Polytechnic Institute where he received his chemical engineering degree. Shortly after graduation, he got married and began working as a chemical engineer. Twelve years before his creation of parylene conformal coating, in 1935, he and his family moved to Palestine (now Israel). [...]

Tenor Voice: A Brief Introduction

Throughout the years the tenor voice has seen many incarnations. From the Castrati, to the Counter Tenor, Lyric Tenor, Dramatic Tenor and the drawing room tenor. The latter, as I see it, is slightly different to the others in that it has a more limited range and lighter voice. [...]