His best-known scientific achievement was the discovery in 1979 of antiprotons as a component of cosmic rays hitting the Earth from the depths of space.

One of Chladni's best-known achievements was inventing a technique to show the various modes of vibration of a rigid surface.

Among his best-known achievements are that of completing Las Salesas complex in Oviedo, a combination of apartments and local businesses inaugurated on October 20, 1982.

Goodfellow's best-known ornithological achievement was the scientific discovery of the Mikado Pheasant in the central mountain ranges of Taiwan and its introduction to aviculture.

The best-known achievement in Mr. Ravitch's public career is his tenure as chairman of the M.T.A., a post he held from 1979 to 1983.

His two best-known achievements, a memo on Soviet-American relations and one on strategy for the 1948 Presidential campaign, were both the work of others for which he took credit.

One of the best-known achievements of this stage is that of conservation.

Cooper's best-known achievements were in creating set designs and game displays for TV quiz shows.

Her best-known achievement was isolating and investigating a protease inhibitor predominant in legume seeds, known today as the Bowman-Birk inhibitor.

One of al-Battānī's best-known achievements in astronomy was the determination of the solar year as being 365 days, 5 hours, 46 minutes and 24 seconds.