Artificial
- Artificial Stone Balls (Petrospheres)
- lapidary spheres
- Lithic-Bolas
- stone round shot (cannonballs)
- Ammunition column
- spherical stone shot for trebuchets
- Stone spheres of Costa Rica
- Carved Stone Balls of Scotland
- Kugel balls
Read more about this topic: Stone Ball
Famous quotes containing the word artificial:
“The most revolutionary invention of the Nineteenth Century was the artificial sterilization of marriage.”
—George Bernard Shaw (1856–1950)
“These are not the artificial forests of an English king,—a royal preserve merely. Here prevail no forest laws but those of nature. The aborigines have never been dispossessed, nor nature disforested.”
—Henry David Thoreau (1817–1862)
“A true politeness does not result from any hasty and artificial polishing, it is true, but grows naturally in characters of the right grain and quality, through a long fronting of men and events, and rubbing on good and bad fortune.”
—Henry David Thoreau (1817–1862)