The history of audio recording technologies and their impact on society and the economy
Flux Magnetics is a company devoted to the design and manufacture of state-of-the-art analog pro-audio heads for the recording industry
Nanodiamond.com sells rare pure nanodiamond powder. Nanodiamond is pure micronized diamond with crystals of the dimensions of 5 nm. Applications varies from superhardening metals to reducing attrition and corrosion.