Exercise ...

Many, many years ago, Ramesh Mahadevan became very popular among newbie grad students -- us! -- with statements like this: "if golf is a sport, I would argue that watching TV is, too." And proceeded to initiate us into the charms of American football -- through TV.

Who would have thought a day would come when NYTimes asks -- and answers -- questions like these: "Is singing exercise? Could I lose weight by vocalizing?"

In the Science section, there's also an article on psychology of pranks.

On this wonderful day, I have to leave you with a mystery link ...