### Martin Luther King on the need for restructuring

We all know that Martin Luther King Jr. had a dream. Fewer of us know what he really stood for, fought for and just how radical his views were considered at the time, and even now (the FBI knew, though, thanks to their copious wiretaps and 24-hour spy program in the years following the 1965 bus boycotts).

Here's a side of MLK that most don't know:
“Justice for black people will not flow into society merely from court decisions nor from fountains of political oratory. Nor will a few token changes quell all the tempestuous yearnings of millions of disadvantaged black people. White America must recognize that justice for black people cannot be achieved without radical changes in the structure of our society. The comfortable, the entrenched, the privileged cannot continue to tremble at the prospect of change in the status quo.
“When millions of people have been cheated for centuries, restitution is a costly process. Inferior education, poor housing, unemployment, inadequate healthcare — each is a bitter component of the oppression that has been our heritage. Each will require billions of dollars to correct. Justice so long deferred has accumulated interest and its cost to society will be substantial in financial as well as human terms. This fact has not been fully grasped, because most of the gains of the past decade were obtained at bargain rates. The desegregation of public facilities cost nothing; neither did the election and appointment of a few black public officials.” [emphasis mine]
I'd argue that this fact still has not been fully grasped by white Americans. I'd argue that these words are just as true for American society in the 1960's as it is for astronomy today. To increase inclusion, and to offer truly equal opportunity to all citizens we must recognize and destroy the racist foundations of our institutions of higher learning. We must fundamentally rethink the way we do science. Our current structure was not borne out of notions of equal opportunity. Out system was not established as a meritocracy since many were originally, and many continue to be excluded. Academia in general and astronomy in particular finds its cultural roots in elitism; in the notion that white men are the only citizens capable of pursuing scientific thought. Today, that legacy is propagated by in-group benefits; benefits that are largely invisible to the people who receive them.

One cannot work for a more fair and equitable field of science while ignoring the existence of racism, both in our past and in our everyday lives today. I've seen far too many "diversity" programs fall by the wayside because the focus on treating symptoms (e.g. low test scores) rather than root causes (e.g. racist stereotypes); aiming for feel-good diversity, rather than radically seeking equal opportunity and the establishment of a true meritocracy; and by falling into the pitfall belief that "excellence" is something objectively measured, rather than subjectively (and often arbitrarily) bequeathed by a privileged class.

### On the Height of J.J. Barea

Dallas Mavericks point guard J.J. Barea standing between two very tall people (from: Picassa user photoasisphoto).

Congrats to the Dallas Mavericks, who beat the Miami Heat tonight in game six to win the NBA championship.

Okay, with that out of the way, just how tall is the busy-footed Maverick point guard J.J. Barea? He's listed as 6-foot on NBA.com, but no one, not even the sports casters, believes that he can possibly be that tall. He looks like a super-fast Hobbit out there. But could that just be relative scaling, with him standing next to a bunch of extremely tall people? People on Yahoo! Answers think so---I know because I've been Google searching "J.J. Barea Height" for the past 15 minutes.

So I decided to find a photo and settle the issue once and for all.

I then used the basketball as my metric. Wikipedia states that an NBA basketball is 29.5 inches in circumfe…

### The Force is strong with this one...

Last night we were reviewing multiplication tables with Owen. The family fired off doublets of numbers and Owen confidently multiplied away. In the middle of the review Owen stopped and said, "I noticed something. 2 times 2 is 4. If you subtract 1 it's 3. That's equal to taking 2 and adding 1, and then taking 2 and subtracting 1, and multiplying. So 1 times 3 is 2 times 2 minus 1."

I have to admit, that I didn't quite get it at first. I asked him to repeat with another number and he did with six: "6 times 6 is 36. 36 minus 1 is 35. That's the same as 6-1 times 6+1, which is 35."

Ummmmm....wait. Huh? Lemme see...oh. OH! WOW! Owen figured out

x^2 - 1 = (x - 1) (x +1)

So $6 \times 8 = 7 \times 7 - 1 = (7-1) (7+1) = 48$. That's actually pretty handy!

You can see it in the image above. Look at the elements perpendicular to the diagonal. There's 48 bracketing 49, 35 bracketing 36, etc... After a bit more thought we…

### The Long Con

Hiding in Plain Sight

ESPN has a series of sports documentaries called 30 For 30. One of my favorites is called Broke which is about how professional athletes often make tens of millions of dollars in their careers yet retire with nothing. One of the major "leaks" turns out to be con artists, who lure athletes into elaborate real estate schemes or business ventures. This naturally raises the question: In a tightly-knit social structure that is a sports team, how can con artists operate so effectively and extensively? The answer is quite simple: very few people taken in by con artists ever tell anyone what happened. Thus, con artists can operate out in the open with little fear of consequences because they are shielded by the collective silence of their victims.
I can empathize with this. I've lost money in two different con schemes. One was when I was in college, and I received a phone call that I had won an all-expenses-paid trip to the Bahamas. All I needed to do was p…