Henry Dircks | |
|---|---|
 Portrait of Henry Dircks from his book Nature-Study | |
| Born | 26 August 1806 Liverpool, England |
| Died | 17 September 1873 (aged 67) Brighton, England |
| Occupation | Engineer |
| Engineering career | |
| Projects | Perpetual motion |
| Significant design | Pepper's ghost |
Henry Dircks FRSE FCS (26 August 1806– 17 September 1873) was an English engineer who is considered to have been the main designer of the projection technique known as Pepper's ghost in 1858. It is named after John Henry Pepper who implemented a working version of the device in 1862. Dircks also investigated attempts at the invention of a perpetual motion device, writing that those who sought to create such a thing were "half-learned" or "totally ignorant".