The winning design projects a needle into the sky from a circular cylinder which tapers to the ground.

The solution to potential flow around a circular cylinder is analytic and well known.

But there were big, circular cylinders for bullets, and at the front end of the barrels were large disks.

For smooth bodies, like a circular cylinder, the drag coefficient may vary significantly until Reynolds numbers up to 10 (ten million).

For a right circular cylinder, there are four possibilities.

An airplane in flight can be imagined to affect a circular cylinder of air.

Another adaptation works for an ellipse realized as the intersection of a plane with a right circular cylinder.

This is true for a circular cylinder, sphere, cone, torus, and a few other surfaces of revolution.

It is a circular cylinder, 1 meter long and 0.5 meter diameter.

Upon it rested two circular cylinders, containing crackers and water.