| RANKINE | Scottish thermodynamics pioneer who devised a temperature scale |
| FAHRENHEIT | Scientific instrument maker and physicist who devised a temperature scale to go with his invention of the mercury-in-glass thermometer (10) |
| BEAUFORT | Sir Francis, British admiral who devised a scale of wind velocities (8) |
| SCOVILLE | Pharmacist who devised a scale based on the measurement of the pungency or spiciness of chillies (8) |
| ALANTURING | British mathematician and computer scientist, 1912-1954, who devised a test of a machine's ability to demonstrate human-like intelligence (4,6) |
| GALLUP | George, U.S. statistician who devised a type of opinion poll (6) |
| DEWEY | American librarian who devised a system of book classification (5) |
| ERNSTMACH | Austrian physicist who devised a system of speed measurement (5,4) |
| MACH | Ernst ?, Austrian physicist who devised a system of speed measurement (4) |
| ROGET | English physician who devised a classified list of synonyms (5) |
| HUBBLE | Astronomer who devised a classification scheme for galaxies (6) |
| BELASCHICK | Hungarian-born American paediatrician who devised a test for susceptibility to diphtheria |
| BESSEMER | Henry -, 19th-century English engineer who devised a process for producing steel |
| ARGAND | Jean-Robert ___, French mathematician who devised a diagram that displays complex numbers |
| CELSIUS | Swede who developed a temperature scale |
| ANDERSCELSIUS | Swedish astronomer who invented a temperature scale (6,7) |
| DEGREE | What is a unit division of a temperature scale? (6) |
| SKINNER | B F ?, US behavioural psychologist who devised a box for studying the learning capacity of animals (7) |
| GEIGER | Hans ___, German physicist who devised a counter to measure radiation in 1908 (6) |
| SCHLIEFFEN | Alfred, field marshal who devised a plan for German strategy in World War One (10) |
