Gasparo Berti

Although Evangelista Torricelli is universally credited with inventing the barometer in 1643, historical documentation also suggests Gasparo Berti, an Italian mathematician and astronomer, unintentionally built a water barometer sometime between 1640 and 1643.

He recommended Gasparo Berti for a chair of mathematics at Sapienza.

Gasparo Berti, Italian mathematician, astronomer and physicist (born c. 1600)

A brief return to England was followed by a second European journey; in 1636 he sailed via Livorno (Leghorn) to Rome, dining with Ent on 5 October at the English College, Rome; he also met William Harvey, who was entertained at the college on the 12th, Gasparo Berti, Lucas Holstenius and Athanasius Kircher.

Gasparo Berti

Gasparo Berti (c. 1600–1643), Italian physicist and astronomer

He decided to design and make a water barometer, paying homage to the 17th-century scientists, such as Evangelista Torricelli and Gasparo Berti, who produced some of the first and most crucial vacuum experiments, and created the first water barometers alongside their houses between 1640 and 1660.

In particular he followed the experiments in this field by Gasparo Berti, in Rome.

Other scientists took up the challenge, including Gasparo Berti, who replicated it by building the first water barometer in Rome in 1639.

He assisted - giving full descriptions in various letters - in the syphon experiments performed by Gasparo Berti around 1640.