Compositions   1828: Piano Sonata No 1 1829: Piano Concerto No 2 1830: Piano Concerto No 1 1834: Andante Spianoto & Grand Polonaise 1834: 4 Scherzos 1836: 24 Preludes 1839: Piano Sonata No 2 1843: Piano Sonata No 3 1846: Nocturnes 17 & 18	Science 1822: Faraday: Electric motor             1839: Daguerre: Early photography     1859: Darwin: Origin of Species