If you fill a cup with water and tie it to a string, you can spin the cup around in a horizontal or vertical circle. As long as you spin it fast enough, the water will not spill out! Still don't ...

Circle is designed to rotate a piece of paper around a vertical drum before ejecting the printed page, curled around the device’s exterior for the smallest possible footprint.

This generates a poloidal magnetic field that bends the plasma current into a circle (green vertical circle). Bending the column into a circle prevents leakage and doing this inside a doughnut-shaped ...

There are three special cases of straight lines: parallel, horizontal and vertical. Circle geometry Arc length is a fraction of circumference. Area of a sector is a fractions of the area of a circle.