Patent No. 7693663. 2010.
Eartquake detector.
Invented in 1956 as a storage device, the disk drive might one day save millions of lives, thanks to its unusual sensitivity to movement. That capability sparked a patent for microvibration sensors in drives that calculate earth tremors. Now geologists can measure—and soon possibly even predict—the most unpredictable phenomena in nature.
11 years ago



