Cover photos (cropped): Carl Sagan — NASA/JPL (license) · Enrico Fermi — Department of Energy-Office of Public Affairs, restored by Yann (license) · Ernest Rutherford — Bain News Service, publisher Restored by: Bammesk (license)
10 free faces
Great Scientists
The discoverers who changed how we understand the world.
Nobel laureates and pioneers of physics, chemistry, medicine, and computing — the faces behind the breakthroughs.
Full list
94 people with open-licensed portraits · 10 random faces per round
Play 10 free facesNew purchases are unavailable while content and purchase access are checked. Existing purchases remain accessible.
What you'll practice
Practice connecting the faces of scientists and inventors with their names. Begin with choices, check the answer, and return later to try recalling a name without choices.
- Learn
- Meet faces with clearer name choices and check the answer.
- Recognize
- Choose the name among more similar alternatives.
- Recall
- Sign in to type a name from memory. Delayed independent recall is separate from multiple-choice success.
Available free samples need no account. After a round, revisit missed faces or return for a personal memory workout. Quiz practice does not guarantee real-world name recall.
Recognition and recall: what changes?New subscriptions are in preparation. Previous purchases retain their original access.
Free beta and future plans