Rajeev’s Almanack

Read Also Part 1 , Part 2, Part 3

The shadowy machinations in Pakistan bring to mind another time and place where a President who had also been a General acted decisively to enforce a Court Order. The President was General (retd.) Eisenhower dealing with a crisis that started almost exactly fifty years ago today. The Governor of Arkansas, Mr. Orval Faubus, was determined to prevent black children from attending the same school as white children. In a bit of political grandstanding, he personally blocked the entrance to the school in Little Rock Arkansas to prevent the Federal Marshals from carrying out an order of the supreme Court (in Brown v. Topeka) to integrate schools. (more…)

Earnest Rutherford used to say that all science is either physics or stamp collecting. This could have been a dig at the biologists of his time, who were still collecting samples and classifying species. He probably would have thought more highly of modern molecular biology, which is a lot like his physics in outlook: everything is determined by the DNA. It is said that Rutherford’s worst insult for a student who had done something stupid was–Chemist. The chemists had the last laugh though: Rutherford was awarded the Nobel Prize not in Physics but in Chemistry for having achieved the transmutation of elements.

Should we understand the world bottom up or top down? Which is the proper scientific view? (more…)

It is hard to think of a problem more ubiquitous than the diagonalization of a matrix.I will discuss today a statistical approximation method for finding the eigenvalues of a symmetric matrix. (more…)