ball and ring

American  

noun

1. a simplified bead-and-reel turning, used especially in English and American furniture of the 17th century.

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Example Sentences

Watch this 30-second video demonstrating thermal expansion with the classic brass ball and ring experiment.

From Textbooks • Jan. 1, 2017

Move the ball and ring so that the shadow slowly returns to its first position.

From Myths and Marvels of Astronomy by Proctor, Richard A. (Richard Anthony)

The latter is suspended by two dolphins, instead of the chains generally in use, whose tails are united, and attached to a small ball and ring.

From Museum of Antiquity A Description of Ancient Life by Haines, T. L. (Thomas Louis)

The brass ball and brass ring shown in Figure 43 are called the expansion ball and ring.

From Common Science by Ritchie, John W. (John Woodside)

Now take the ball and ring into sunlight, or the light of a lamp or candle, holding them so that the shadow of the ring is as thin as possible.

From Myths and Marvels of Astronomy by Proctor, Richard A. (Richard Anthony)