Going vertical

Article Abstract:

The big drive makers, such as Seagate Technology and Hitachi are shipping hard drives with the new architecture known as perpendicular or vertical recording, which replaces the venerable longitudinal recording. A bit is magnetized perpendicular to the plane of the disk rather than in line with it, allowing even smaller bits to be packed many times tighter, thereby raising density up to 10-fold.

Computer Storage Device Manufacturing, Computer storage devices, Rigid Disk Drives, Product enhancement, Hard disk drive, Hard disk drives, Hard disks, Computer storage device industry, Under 5GB hard disk drive, 5GB - 9.99GB hard disk drive, 10GB - 14.99GB hard disk drive, 15GB - 19.99GB hard disk drive, 20GB - 25GB hard disk drive, Over 25GB hard disk drive

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Jet engines: Big squeeze

Article Abstract:

A brief description is presented on the working knowledge of Jet engines that generate thrust by pushing air backward. Air steaming over it must travel farther and thus faster than air passing underneath the flat bottom, in both the cases, as the wing top is curved.

Analysis, Usage, Design and construction, Aerodynamics, Jet engines, Aircraft gas-turbines

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The switch is on

Article Abstract:

The development and benefits of using the recently discovered compact fluorescent lightbulbs (CFLs) are discussed. These bulbs are found to be extremely energy-efficient and hence needs to be made cheaper to promote their usage by the general public.

Science & research, Use of energy, Research, Product information, Energy use, Energy efficiency, Fluorescent lighting

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