M.E. Lines 
On the Shoulders of Giants [PDF ebook] 

On the Shoulders of Giants investigates the relationship between the disciplines of physics and mathematics and shows how many of the most significant advances of 20th-century physics rely on mathematics developed, sometimes much earlier, with no particular physics application in mind. Quoting from mathematicians such as Poincaré and Euclid and physicists such as Newton and Feynman, the links between the two disciplines are explored in the author »s entertaining style, providing a fascinating account of the twists and turns in scientific progress through the ages.