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Line 1: − '''Jabir ibn Hayyan''' (c. 721 – c. 815) was a famous [[alchemist]], living in [[Persia]]. He is credited with numerous discoveries, so of [[sulfuric acid|sulfuric]], [[hydrochloric acid|hydrochloric]] and [[nitric acid|nitric]] [[acid]]s, and of the elements [[arsenic]], [[antimony]] and [[bismuth]]. He developed many alchemical instruments, which are still in use in laboratories today - so for instance the [[retort]].+ − − == Sources == − *[http://www.chemheritage.org/explore/ancients-hayyan.html Chemical Heritage Foundation] − − [[category:chemists]]
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Is God willing to prevent evil, but not able? Then he is not omnipotent. Is he able, but not willing? Then he is malevolent. Is he both able and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?