There is lot of hard work involved in all the discoveries.The concerned person put lot of efforts in discovering a new thing,but sometimes few things just happen by luck or by accident.Some of such accidental discoveries are. 1.Viagra Men being treated for erectile dysfunction should salute the working stiffs of Merthyr Tydfil,the Welsh hamlet where,in 1992 trails,the gravity-defying side effects of new angina drug first popped up.Previously, the blue-collar town was known for producing a different kind of iron. 2.X-Ray Several 19th-century scientists toyed with the penetrating rays emitted when electrons strike a metal target.But the x-ray wasn't discovered until 1895, when German egghead Wilhelm Rontgen tried sticking various objects in front of the radiation - and saw the bones of his hand projected on the wall. 3.LSD Swiss chemist Albert Hofmann took the world's first acid hit in 1943,when he touched a smidge of lysergic acid diethylamide,a chemical he had researched for in...