| MACH | Ernst ___, Austrian physicist and philosopher who devised a system of speed measurement |
| ERNSTMACH | Austrian physicist and philosopher who devised a system of speed measurement (5,4) |
| LABAN | Rudolf von --, choreographer and dance theorist who devised a system of dance notation (5) |
| DEWEY | American librarian who devised a system of book classification (5) |
| MATCH | Possible partner for Austrian physicist and philosopher? About time (5) |
| PITMAN | Who (Sir Isaac ___) devised a system of shorthand? (6) |
| TOLLER | Ernst ___, German author of the stage plays Hoppla, We're Alive and The Blind Goddess (6) |
| STAHL | Georg Ernst ___, German scientist born in 1659 who developed the phlogiston theory of combustion (5) |
| HEINKEL | Ernst _, German aircraft designer and member of the Nazi party (7) |
| ERNST | ___ Mach, Austrian physicist and logical positivism (5) |
| ERNEST | Physicist and philosopher |
| ROHM | Ernst ___, Nazi co-founder of the Sturmabteilung killed in 1934 (4) |
| KRENEK | Ernst ___, Vienna-born composer of 1927 opera Jonny spielt auf (6) |
| GIGAFLOP | Speed measurement for some circuits showing vehicle's a failure |
| HAECKEL | Ernst ___, 19th-century German zoologist and naturalist (7) |
| MPH | Speed measurement for a car or cheetah: Abbr. |
| BAUD | Old modem speed measurement |
| KNOTS | Nautical speed measurement |
| PPM | Printing speed measurement |
| KPH | Metric speed measurement, for short |
