| Answer | Crossword Clue |
|---|---|
| sheeny | a bright or shining condition brightness |
| stroboscopes | An instrument for studying periodic motion or determining speeds of rotation by shining a momentary bright light at intervals so that a moving object appears stationary |
| stroboscope | An instrument for studying periodic motion or determining speeds of rotation by shining a momentary bright light at intervals so that a moving object appears stationary |
