In 1873, a hydrochronometer on the 1867 design of Gian Battista Embriaco, O.P. Accessed 20 March 2013: "È infatti del 1867 l'invenzione dell'idrocronometro, dovuta al padre domenicano Giovanni Battista Embriaco, che attese ai suoi studi di meccanica applicata all'orologeria nella solitudine del convento della Minerva." inventor and professor of the College of St. Thomas in Rome was built on the Pincian Hill in emulation of the one at the College of St. Thomas. Another version stands in the Villa Borghese gardens. Embriaco had presented two prototypes of his invention at the Paris Universal Exposition in 1867 where it won prizes and great acclaim.:it:Idrocronometro Accessed 20 March 2013; "Storia del Progetto" https://docs.google.com/viewer?a=v&q=cache:Bug7LKOP08YJ:https://www.comune.roma.it/PCR/resources/cms/documents/storia-idrocronometro.pdf+idrocronometro+%22storia+del+progetto%22&hl=en&gl=us&pid=bl&srcid=ADGEESiGp8xz15iBCs0S33njoGp3ahPhWhYboWzWGkSevHXbmopZpVjeB2eeLuARhkOU9xVdGNOrRBDcpo6ZpFLZ7y_EBpxiRVc5gL1pc4NOloVKHcCyAiFEo2ZnRZtTWxchmaZPm8u5&sig=AHIEtbSmcoAIHFoLacFIXx-vRZzoi9hdJQ Accessed 20 March. 2013
