| FEYNMA | Physicist who co-developed the theory of weak nuclear force |
| ABELSON | Philip --, American physicist who co-discovered the element neptunium (7) |
| COUSTEAU | Jacques-Yves ___ (1910-97), French underwater explorer who co-developed the first scuba device, the Aqua-Lung, with engineer Emile Gagnan in 1943 (8) |
| JACQUES | and 29ac, French underwater explorer who co-developed the aqualung and pioneered marine conservation |
| LAPLACE | French mathematician and astronomer who formulated the nebular hypothesis concerning the origins of the solar system and who developed the theory of probability (1749-1827). |
| SODDY | Chemist who developed the theory of isotopes and assisted William Ramsay in the discovery of helium (5) |
| EINSTEIN | Albert, German-born physicist who developed the theory of relativity (8) |
| ALBERTEINSTEIN | Physicist who developed the theory of relativity: 2 wds. |
| PASCAL | 17th Century French mathematician and philosopher who developed the theory of probablity with Pierre |
| BLAISE | 17th Century French mathematician and philosopher who developed the theory of probability with Pierr |
| ALBERT | Scientist who developed the theory of relativity (6,8) |
| DARWIN | Naturalist who developed The Theory of Evolution (6) |
| DEMOCRITUS | Greek philosopher who developed the theory of atomism (10) |
| RICARDO | British economist David ____ developed the theory of comparative advantage about international trade, in 1817 |
| GLUON | The so-called messenger particle of the strong nuclear force. |
| MORSE | Code co-developed by the inventor of the telegraph (5) |
| PIMESON | Source of specific nuclear force poorly expressed in poems (2-5) |
| PION | Power attached to charged particle, source of nuclear force |
| APPLE | Steve Jobs, who earlier worked in an orchard, gave what name to the computer he co-developed in 1976? (5) |
| FAMILIES | What may be nuclear force covers a great distance to protect island |
