Lubrication with ambient air is not quite generally applied. The best known application is the “foil bearing” in tape recording systems for audio, video and computer applications; where the gap height that is needed for effective lubrication may quite easily be attained. This air gap reduces tape friction and wear of tape and recording head substantially. On the other hand, though, the air gap ...

I Sony pioneered the videocassette recorder innovations that opened the VCR market for heavy competition and continuing innovations in the field of video. The VCR was a novel technology that involved risk taking from companies developing it. Not only was it unclear whether the public would accept the VCR, but failures in the development process were common. VCR development is a prime example of...