Add spaces between the words in the following text: Heclaimedthattwointeractingringswouldchangesizeandvelocityastheyinteractedbutwouldretaintheirringshape.TaitverifiedHelmholtz'theoreticalclaimswithexperimentswithsmokeringsin1867.
He claimed that two interacting rings would change size and velocity as they interacted but would retain their ring shape. Tait verified Helmholtz ' theoretical claims with experiments with smoke rings in 1867.