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User Reviews :
GEOPosCalc is an easy to use and powerfull tool for coordinate systems (grid) and datum conversion. It does support more than 200 predefined datums, 20 ellipsoids and 10 coordinate systemsand the ability to define your own datums and ellipsoids.
BATE BATE calculates pH of weak/strong acid/base mixtures and their titration curves
VRMars-Spirit - The Red Planet Mars 3D 4GB of Virtual Reality of the Red Planet Mars-3D... Covers over 3 years of the MER Spirit Mission. VRPresents DVD for scientists and hobbyists interested in astronomy, cosmos, planets, solar system.