| HOOKE | Robert -, English scientist born in 1635 who built the first Gregorian telescope (5) |
| STAHL | Georg Ernst ___, German scientist born in 1659 who developed the phlogiston theory of combustion (5) |
| KORAN | Georg Ernst -, German scientist born in 1659 who developed the phlogiston theory of combustion (5) |
| PLANT | Robert, English singer/ songwriter who is lead singer of the rock band Led Zeppelin (5) |
| SAGAN | Carl ***** , astronomer and planetary scientist born in 1934 (5) |
| DALTON | John -, English scientist born in 1766 noted for his research into colour blindness (6) |
| ISAACNEWTON | Scientist who built the first practical reflecting telescope (5,6) |
| JARDINDESPLANTES | The oldest botanical garden in Paris, originally created in 1635 by Louis XIII's physicians to house the royal medicinal herb garden (6,3,7) |
| MARCUS | What is the surname of the man who built the first petrol-powered internal combustion engine? |
| FRESCOBALDI | Girolamo ___, Italian organist and composer whose best known work, the collection Fiori musicali, was first published in 1635 (11) |
| ACADEMIEFRANCAISE | Official body on matters pertaining to the French language, established in 1635 by Cardinal Richelieu |
| SANGSTER | Robert, English thoroughbred racehorse breeder and owner who was a major investor in the Coolmore Stud (8) |
| POWELL | Robert, English actor who starred in the 1977 drama serial Jesus Of Nazareth (6) |
| WILLIAM | Scottish engineer who built the first working steamboat, in 1802 (7,9) |
| SYMINGTON | Scottish engineer who built the first working steamboat, in 1802 (7,9) |
| DREBBEL | Cornelis ___, inventor who built the first navigable submarine in 1620 |
| ASKE | Robert, English lawyer and protestor against the Reformation, executed in 1537 (4) |
| GRAVES | Robert, English author who wrote the historical novel I, Claudius (6) |
| LINDSAY | Robert, English actor noted for his roles in the TV sitcoms Citizen Smith and My Family (7) |
| BENZ | German engineer who built the first petrol-engined car (4) |
