Matteo Ricci

Matteo Ricci

Matteo Ricci
Altre idee da Matteo
Portable vertical sundial, ca. 250 A.D. Oxford, Museum of the History of Science, inv. 51358  Portable sundial calibrated for a variety of latitudes. The curved piece rotating above the smaller disc is a combination between an hour-scale and a gnomon, to indicate the date. Suspended in the vertical plane, it marked the hour. The back of the larger disc carries the latitudes of 30 provinces in the Roman Empire.

Portable vertical sundial, ca. 250 A.D. Oxford, Museum of the History of Science, inv. 51358 Portable sundial calibrated for a variety of latitudes. The curved piece rotating above the smaller disc is a combination between an hour-scale and a gnomon, to indicate the date. Suspended in the vertical plane, it marked the hour. The back of the larger disc carries the latitudes of 30 provinces in the Roman Empire.

A sun dial that is accurate with time. and a cool idea for plasma cutworks.

A sun dial that is accurate with time. and a cool idea for plasma cutworks.

Spherical Astrolabe, 1480-1481. The name "astrolabe" comes from the Greek word astro, meaning "star," and labio, "that which searches," so it could be translated as "star searcher."

Spherical Astrolabe, 1480-1481. The name "astrolabe" comes from the Greek word astro, meaning "star," and labio, "that which searches," so it could be translated as "star searcher."

How to make your own sundial. A project for a sunny day!

How to make your own sundial. A project for a sunny day!

Sundials and how they work

Sundials and how they work

Mt Tomah Botanical Gardens Sun Dial - set up as a climber. Can have markers around to indicate solstices and equinoxes

Mt Tomah Botanical Gardens Sun Dial - set up as a climber. Can have markers around to indicate solstices and equinoxes

Roman sundial on top of an Ionic column in the Temple of Apollo, Pompeii, Italy. #TuscanyAgriturismoGiratola

Roman sundial on top of an Ionic column in the Temple of Apollo, Pompeii, Italy. #TuscanyAgriturismoGiratola

Sundial

Sundial

Sundial, Botanical Garden, Rio de Janeiro, Brazil

Sundial, Botanical Garden, Rio de Janeiro, Brazil

How To Build and Install A Sundial In Your Garden

How To Build and Install A Sundial In Your Garden