Wikenigma
From Wikipedia, the free encyclopedia
 | |
Type of site | Online encyclopedia |
|---|---|
| Available in | English |
| Founder | Martin Gardiner |
| URL | wikenigma |
| Advertising | No |
| Commercial | No |
| Registration | Optional |
| Launched | 2016 |
| Current status | Active |
Content license | CC BY-NC-SA 4.0 |
| Written in | PHP (DokuWiki) |
Wikenigma is a wiki which documents open problems ("known unknowns") across various scientific fields.[1][2]
With the aim of creating a collection of the unknowns in science, the site was founded in 2016 by Martin Gardiner (not to be confused with Martin Gardner), a former contributor to Improbable Research, which hosts the satirical Ig Nobel prize. The wiki grew to have 500 entries by 2020, and as of September 2025 has over 1200 entries.[2][3] The site was mentioned by internet personality Annie Rauwerda, who runs Depths of Wikipedia social media accounts.[2]