| JOHNNAPIER | Scottish mathematician known as the inventor of logarithms |
| NAPIER | John ?, Scottish mathematician known as the inventor of logarithms |
| NEPER | Unit expressing ratios, named after the inventor of logarithms (5) |
| BERNERSLEE | Tim - - - - - -, computer scientist best known as the inventor of the World Wide Web (7-3) |
| ALVARAALTO | Finnish architect and designer (1898-1976) known as the inventor of bent plywood furniture; the Paimio chair, Stool 60 etc. (5,5) |
| EUCLID | Mathematician known as the founder of geometry (6) |
| RENEDESCARTES | French mathematician known as the father of analytic geometry: 2 wds. |
| ALEXANDER | Antonio Meucci was finally acknowledged by the US Congress in 2002 as the inventor of the telephone instead of ... Graham Bell |
| TIMBERNERSLEE | British computer scientist credited as the inventor of the World Wide Web (3,7-3) |
| SERGIO | Italian film director credited as the inventor of the Spaghetti Western genre (6,5) |
| LEONE | Italian film director credited as the inventor of the Spaghetti Western genre (6,5) |
| EARL | British nobleman ranking above a viscount and below a marquess, such as the inventor of the sandwich, John Montagu (4) |
| MANTISSA | Prayer, as recalled, for the end of logarithms! |
| GUTENBERG | Johannes --, German who is regarded as the inventor of printing (9) |
| POPOV | Electrical engineer (1859-1906) acclaimed in Russia as the inventor of radio |
| EULER | Mathematician known as "Analysis Incarnate" |
| RADIX | In mathematical numerical systems, the quantity on which a system of numeration (or of logarithms) is based (5) |
| BACKTOTHEFUTURE | Comic sci-fi film series featuring Doc Emmett Brown as the inventor of a time machine (4,2,3,6) |
| OCARINA | Giuseppe Donati is credited as the inventor of which small musical instrument? (7) |
| JIGSAWPUZZLES | British cartographer John Spilsbury, who made his "dissected maps" in 1766, is credited as the inventor of what? (6,7) |
