2024/11/07

Todays Thought

When I despair, I remember that all through history, the way of truth and love has always won. There have been murderers and tyrants, and for a time they can seem invincible. But in the end they always fall. Think of it, always

-Mohandas Karamchand Gandhi (2 Oct 1869-1948)

2024/11/04

Todays Thought

A king can stand people's fighting, but he can't last long if people start thinking. 

-Will Rogers, humorist (4 Nov 1879-1935)

2024/11/01

Todays Thought

The wisest man is he who does not fancy that he is so at all. 

-Nicolas Boileau-Despreaux, poet and critic (1 Nov 1636-1711)

2024/10/28

TALES OF THE CITY and the Fight to Save PBS

Math Is Still Catching Up to the Mysterious Genius of Srinivasa Ramanujan

 Math Is Still Catching Up to the Mysterious Genius of Srinivasa Ramanujan

Consider an integer such as the number 4. It can be broken up into parts in a finite number of ways: You can write it as 4, as 3 + 1, as 2 + 2, as 2 + 1 + 1 or as 1 + 1 + 1 + 1. Mathematicians say that the number 4 has five “partitions.” Bigger numbers have far more partitions: The number 200, for instance, has nearly 4 trillion. Partitions are so basic that “people have thought about them as long as people have thought about mathematics,” said Andrew Sills(opens a new tab) of Georgia Southern University.

The first mathematician to study partitions systematically was Leonhard Euler in the 18th century. He proved the very first partition identity: that for any integer (say, 4), the number of partitions whose parts are all odd (two partitions in this case: 3 + 1 and 1 + 1 + 1 + 1) is equal to the number of partitions whose parts are all distinct, meaning there are no repetitions among them (4 and 3 + 1).

MacMahon saw that the two Rogers-Ramanujan identities could be interpreted in a similar way. (The German mathematician Issai Schur, isolated due to World War I, independently discovered the identities and came to the same conclusion.) The sum side of the first Rogers-Ramanujan identity counts the number of partitions of a given integer that don’t have any duplicated or consecutive parts. (For the number 4, there are two: 4 and 3 + 1.) The product side counts the number of partitions whose parts all leave a remainder of 1 or 4 when divided by 5 (4 and 1 + 1 + 1 + 1). For any integer, the number of partitions satisfying each condition will always be equal.



This is a very weird fact. It’s mysterious,” said Shashank Kanade(opens a new tab) of the University of Denver. “I mean, where did the 5 come from?”

For much of the 20th century, mathematicians would delight in thinking about the strange hidden phenomena that Ramanujan had unearthed. During World War II, for instance, the physicist Freeman Dyson wrote that he “kept sane by wandering in Ramanujan’s garden.”

Linguist Answers Word Origin Questions | Tech Support | WIRED

Todays Thought

The President is merely the most important among a large number of public servants. He should be supported or opposed exactly to the degree which is warranted by his good conduct or bad conduct, his efficiency or inefficiency in rendering loyal, able, and disinterested service to the Nation as a whole. Therefore it is absolutely necessary that there should be full liberty to tell the truth about his acts, and this means that it is exactly necessary to blame him when he does wrong as to praise him when he does right. Any other attitude in an American citizen is both base and servile. To announce that there must be no criticism of the President, or that we are to stand by the President, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public. Nothing but the truth should be spoken about him or any one else. But it is even more important to tell the truth, pleasant or unpleasant, about him than about any one else. 

-Theodore Roosevelt, 26th US President (1858-1919)

Todays Thought

It is not the mountain we conquer but ourselves.  -Edmund Hillary, mountaineer and explorer (20 Jul 1919-2008)