| purity | |||
| 80% | AL'HAITAM (2) | Alhazen Lacked Huygens' Accuracy In Trinomial Answer (to) Mirror-problem. | Angela Brett (Al'Haitam was also known as Alhazen, and is best known for 'Alhazen's problem,' which Huygens found a better solution to.) Science:Mathematics:Mathematicians |