Electric organ (biology) in research because of their resemblance to nerve-muscle junctions. The stack of electrocytes has long been compared to a voltaic pile, and may even have inspired the invention of the battery, since the analogy was already noted by Alessandro Volta. While the electric organ is structurally similar to a battery, its cycle of operation is more like a Marx generator, in that the individual elements are slowly charged in parallel, then suddenly and nearly simultaneously discharged in series to produce a high voltage pulse. To discharge the electrocytes at the correct time, the electric eel uses its pacemaker nucleus, a
Memorial to Alessandro Valtrini case of Alessandro Valrtrini monument, a medallion-shaped portrait of Valtrini himself. Valtrini had been a wealthy donor during his lifetime. Three churches he had supported erected monuments to him, Il Gesù (where his body remained), Santa Maria sopra Minerva and the Bernini version in San Lorenzo in Damaso. He died in 1633. Francesco Barberini organised the Bernini commission in the late 1630s. Memorial to Alessandro Valtrini The Memorial to Alessandro Valtrini is a funerary monument designed by the Italian artist Gian Lorenzo Bernini in 1639, and executed by his workshop in the same year. It is situated in the church