An interÂestÂing facÂtoid relatÂing to the devÂasÂtatÂing earthÂquake in Chile this weekÂend. A NASA sciÂenÂtist surÂmisÂes that the quake probÂaÂbly shiftÂed the Earth’s axis and shortÂened the day. As this piece in BusiÂness Week goes on to explain:
EarthÂquakes can involve shiftÂing hunÂdreds of kiloÂmeÂters of rock by sevÂerÂal meters, changÂing the disÂtriÂbÂuÂtion of mass on the planÂet. This affects the Earth’s rotaÂtion, said Richard Gross, a geoÂphysiÂcist at NASA’s Jet PropulÂsion LabÂoÂraÂtoÂry in PasadeÂna, CalÂiÂforÂnia, who uses a comÂputÂer modÂel to calÂcuÂlate the effects.
“The length of the day should have gotÂten shortÂer by 1.26 microsecÂonds (milÂlionths of a secÂond)… The axis about which the Earth’s mass is balÂanced should have moved by 2.7 milÂliarcÂsecÂonds (about 8 cenÂtimeÂters or 3 inchÂes).”
For more, read the comÂplete BusiÂness Week artiÂcle. And, conÂsidÂer donatÂing to a Chile relief fund. MashÂable tells you how…
via @slate