His most celebrated work was a 5-feet vertical circle, which was finished in 1789 and was used by Giuseppe Piazzi at Palermo in constructing his catalogue of stars.
From the en.wikipedia.org
In most circumstances, the hands do not move beyond the vertical circle that is described by swinging the arms in front, with the hands crossed at the wrists.
From the en.wikipedia.org
The letter P lies on the vertical diameter of the circle.
From the en.wikipedia.org
Several curved vertical and horizontal lines cover the circle to create an image of the globe.
From the en.wikipedia.org
An out-of-focus point of light in the background will appear as a vertical oval rather than a circle.
From the en.wikipedia.org
They can identify a vertical line, a horizontal line, a backwards circle line and slant lines.
From the DesMoinesRegister.com
A vertical line is drawn over the circle, but then is erased.
From the en.wikipedia.org
Minutes are indicated on the smaller ring, vertical to the outer circle, and moves with the entire tourbillon mechanism including the bridge.
From the foxbusiness.com
For the project, researchers have surrounded trees with vertical PVC pipes arranged in a circle 30 meters in diameter.