I
- Imbert–Fedorov effect – Christian Imbert and Fedor Ivanovič Fedorov
- Ishikawa diagram – Kaoru Ishikawa
- Ising model (a.k.a. Lenz–Ising model) – Ernst Ising (and Wilhelm Lenz)
Read more about this topic: Scientific Phenomena Named After People
I
Read more about this topic: Scientific Phenomena Named After People