gnomon
2
9.9
- noun
- /ˈnōmən/
- Specialized
:
gnomon
- At noon, the sun is directly overhead, and the gnomon casts the shortest shadow on the sundial.
The grammaticus in the Roman argument uses a measuring stick, a geometric measuring gnomon for casting a shadow.
- The grammaticus in the Roman argument uses a measuring stick, a geometric measuring gnomon for casting a shadow.
- And it's a ping pong ball is the gnomon because ping pong balls are available anywhere in the world.
Examples
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The grammaticus in the Roman argument uses a measuring stick, a geometric measuring gnomon for casting a shadow.
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Her body was the gnomon of a sundial.
Fiction book (1992) -
And we can ask, what direction does the Gnomon's shadow move on the sundial?
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But Pohnpei lies at 7 degrees north, and the participants calculated that a gnomon small enough to make the sundial fit on the construction paper would have to be about a millimeter high—just a little hard for elementary schoolchildren to cut out.
Academic text (1995) -
The gnomon of the sundial is carefully aligned to ensure accurate time measurement.
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Using a tall gnomon, we can tell the time by observing how long the shadow stretches.
Surface Forms
Etymology
The word gnomon comes from an old Greek word meaning 'one who knows' and is related to the English verb know. So a gnomon is like the sundial's 'knower', the piece that shows the time by its shadow.