A Stranger in Africa

Tuesday, December 9th, 2014

As an African-American, Janice Rhoshalle Littlejohn found herself a stranger in Africa:

Viscerally, I knew that someone related to me likely started his or her journey here centuries ago, that I had a kinship to “The Slave Coast,” where millions of Africans were sold into domestic bondage and transported to Europe and the Americas between 1665 and 1807. I had read Alex Haley’s Roots. But that was his story, and those, his people. The stories I had heard throughout my childhood were not of the kings and queens stolen from an African homeland, but of everyday warriors here who fought and died for my rights to vote; to go to school; to choose where I would live, and whom I would love. They were my father, who fought in the Vietnam War as a United States Marine (my brother, a second-generation jarhead who fought in the Persian Gulf conflict); they were my mother, the first in her family to graduate from college (me, the first in mine to earn a master’s degree). My people were architects and game-changers; innovators and writers; preachers, teachers, chefs, and hope-builders; they were black, proud, and American—like me.

Days earlier, stepping off the plane into the bustling city of Accra, never had I been surrounded by so many faces that looked like mine, and yet I felt as foreign among them as I had years earlier on a trip to Tokyo. Having African ancestry and black skin did not make me a sister but a stranger with my neat, fresh-from-the-salon, straw-curled ’fro now seeking to connect. This journey to Ghana became a rite of passage to a new consciousness of my own Americanness.

[...]

I was born “black” in the late 1960s to my mother who, in 1940, had been born “colored”; and to my father, born “Negro” in 1944. I was in high school when Jesse Jackson proclaimed us all “African-American.” My father’s people were servants who came to the U.S. from Scotland (and the surname, Littlejohn, from the Englishman for whom they would later work); my mother’s maternal family tree traces back several generations to an Irishman and a Native American woman from an unknown tribe.

[...]

In Africa, I am obruni, which, in the most literal terms, means “white man,” or “foreigner.” It was how I was referred to many times while in Africa. It was not meant as an insult, just an acknowledgement that I was not of that land, no matter how deeply my roots ran through it.

Someday I will to return to Ghana, for a journey that is my own, maybe on safari in the northern region, or with my parents on a holiday vacation in Accra. (Stories I’ve heard of Christmastime there sound not unlike summer break beach parties in Miami.) But not before I make that trip to Scotland and to England, where I am told I’ll also find a lot of my people.

Parenting and Verbal Intelligence

Tuesday, December 9th, 2014

Family and parenting characteristics are not significant contributors to variation in IQ scores, Beaver et al. find, suggesting that IQ is in the genes:

To find out, the team pored over information from a study of more than 15,000 U.S. middle- and high-school students. It’s called the National Longitudinal Study of Adolescent Health.

Starting in the 1994-to-1995 school year, researchers had asked students a series of questions. For instance: How warm and loving are your parents? How much do you talk with them? How close do you feel to your parents? How much do you think they care about you?

Students also were given a list of 10 activities. Then the questionnaire asked how many of those activities students had done with their parents in the previous week. Did they play sports together? Go shopping? Talk with each other over dinner? Watch a movie together?

Students also answered questions about how permissive their parents were. For example, did their parents let them choose their own friends, choose what to watch on TV or choose for themselves when to go to bed?

The researchers then gave the students a test to gauge their IQ. Called a Picture Vocabulary Test, it asked the students to link words and images. Scores on this test have been linked repeatedly to IQ. Later in life, between the ages of 18 and 26, these people were tested again.

Beaver’s group was especially interested in results from a group of about 220 students who had been adopted. The parents who raised them had not passed on any genes to them. So if there was a link between the students’ IQs and the way their parents raised them, the researchers should see it most clearly in the adopted students’ scores.

But no such link emerged. Whether students reported their parents cared about them and did things with them — or reported that they did not — it had no impact on the their IQ.

Colombia’s Data-Driven Fight Against Crime

Tuesday, December 9th, 2014

Before becoming mayor of Cali, Colombia, Rodrigo Guerrero was a Harvard-trained epidemiologist. Once in office, he led a data-driven fight against crime:

When Guerrero became mayor in 1992, the conventional wisdom was that the vast bulk of Cali’s murders stemmed from disputes over cocaine trafficking — at the time, the Cali Cartel was overtaking the Medellín Cartel in control of the cocaine trade.

But Guerrero didn’t assume, he measured. The police, courts and every other institution that counted murders all came up with different figures. Guerrero had weekly meetings with these groups and academic researchers to find more accurate figures. Then they mapped homicides by time and neighborhood.

That took about a year — and his term was only two and a half years — but he found something important: deaths were concentrated on weekends, especially payday weekends. (On his first New Year’s Eve as mayor, there were 22 homicides in one night.) The same was true in Medellín, which was why El Mundo’s crime reporters needed dozens of ways to describe violent death, as the Eskimo people are said to have for snow.

“Things that happen on the weekend in our country are often associated with alcohol,” Guerrero said. So Cali started to look at alcohol in the blood of victims (few perpetrators were caught) — and found a large percentage of victims had very high levels. “My initial hypothesis was that this was drug trafficking,” he said. “But the traffickers were not going to wait for weekends to resolve their conflicts — and get their victims drunk.”

The astronomical murder rate was related to the cocaine trade, Guerrero concluded — but only indirectly. Cocaine created social disruption and intensified an already-violent culture. “Drug trafficking was like H.I.V.,” Guerrero said. “It interferes with the defense mechanisms — in this case police and justice.” Those institutions were corrupted and degraded to the point where practically no one paid a penalty for murder — a suspect was identified in only 3 percent of homicides and convicted in a small percentage of those.

Guerrero banned the sale of alcohol after 1 a.m. on weeknights and 2 a.m. on Fridays and Saturdays. (That 2 a.m. is considered early closing says a lot about the problem.) As he expected, bar owners — and bar patrons — objected. Guerrero asked bars to try it for three months, but success was obvious nearly instantly. The effects were big enough to overcome the objections.

The other decree banned the carrying of guns — enforced by checkpoints and pat-downs — on payday weekends and holidays. The army, which held a monopoly on the manufacture and sale of guns, fought the law. But again, success was persuasive. Researchers compared gun ban days to similar days with no ban in Cali and in Bogotá, which replicated the program. They found that neighborhoods with the ban saw 14 percent fewer homicides in Cali and 13 percent fewer in Bogotá than neighborhoods without restrictions.

Together, those two decrees cut the homicide rate where they were instituted by 35 percent.

There was more: Since the data showed that a large majority of offenders were under 24, Guerrero instituted a curfew for young people in high crime neighborhoods between 11 p.m. and 5 a.m. on weekends.

Working In a Maximum Security Prison

Monday, December 8th, 2014

Carl from Chicago talks about his professional visit to a maximum security prison years ago, where he was performing an audit:

The first thing you noticed in the prison was how LOUD it was; everyone was screaming the word “motherf&cker” in about 250 variants. It was a cacophony of yelling and noise and very disconcerting. The prison cells were very small with 2 inmates each; one stood menacingly at the bars and one was usually on a bunkbed (there wasn’t really enough room for both of them to stand). If you walked too closely to the cell they might spit on you; if you walked below the high tiers they might throw urine down on you.

The prison was very hot and stifling. The prison was built in the 1860’s long before the concept of air conditioning even existed in practical terms. There was little air flow and the whole place stunk. This audit was conducted during a long, humid summer.

When you think of a jail you assume people are “locked up” all day; this wasn’t the case at the Joliet Correctional Center. During the day likely half the prisoners were walking around, either going to the yard or going from place to place for one reason or another. Guards and prisoners were intermixed and this was likely how they kept the whole place from exploding in the summer heat. I just walked around them intermixed too, in a suit. After a while they just checked me in and I would do my work independently without a guard escorting me as I found my way around the facility.

For me it was odd because everywhere I walked people would scream something unique in my direction which I couldn’t understand. It sounded something like “yoalwr” in one syllable. After a couple weeks I finally figured it out. The prisoners were very street smart; they knew I wasn’t a cop because the police strut in a certain confident manner and act like they own the place (which they do). They also figured I wasn’t a state employee (like an accountant or manager) because they didn’t wear suits and also acted with an air of quiet resignation. To them – I was someone else. A lawyer! That’s the only guy who would walk around the prison in their universe. After I thought about it a bit I realized they were asking “Are you a lawyer” which seemed like a positive thing to pretend to be because a lawyer could be seen as a friend to an inmate should they decide to take the place over and take everyone hostage which from my perspective could occur at any time (although it didn’t).

If you watch “Cool Hand Luke” or other movies you think that the guards own the facility and that they push around the prisoners. I didn’t get that vibe at all at the Joliet Correctional Center. The guards and the prisoners in a way were both serving their sentences in that ancient, broken down, hot hell. Both sides seemed to have a wary detente and likely the prison gangs kept the place in line, since an orderly confinement was best for their businesses. While I was there they busted a guard for drugs and assisting inmates and I wasn’t surprised; it seemed like many of them were from the same neighborhoods and being an entry level guard was a low paid, dangerous job that you probably didn’t want to make even more desperate by mixing it up with maximum security prisoners who are mostly gang members and hardened criminals many in for very long sentences.

Wildlife Photographer Escapes

Monday, December 8th, 2014

Swiss wildlife photographer Lorenzo Vinciguerra was kidnapped in the southern Philippines more than two years ago by rebels of Abu Sayyaf. Now he’s free, after slitting an Islamic militant’s throat with a machete and making a run for it, while the rebels clashed with government troops.

Seeing Green

Monday, December 8th, 2014

Scientists at the Washington University School of Medicine in St. Louis were testing their new infrared laser, when people around the lab started seeing green flashes:

The only photons with the right amount of energy to change a human chromophore are in the 390-720 nanometer wavelength range. Infrared, in the 1000 nanometer wavelength range, is too big and too low-energy to knock a chromophore into changing its shape.

But if huge amounts of infrared photons flooded the eye over a short period of time, two infrared photons could hit the chromophore at once. Their combined energy is enough to cause it to change its structure and allow people to see what they otherwise wouldn’t. Two 1000 nanometer photons add up, energetically speaking, to one photon of around 500 nanometers – which is in the green range of the visual spectrum. So infrared light, if concentrated enough, would leave us seeing green.

Cirque du Soleil’s Next Act: Rebalancing the Business

Monday, December 8th, 2014

Cirque du Soleil’s next act, the Wall Street Journal reports, will be rebalancing the business:

Cirque du Soleil grew out of Montreal’s street performer scene in the 1980s, helped by early government funding as banks were reluctant to support the band of fire eaters, stilt walkers and clowns. The company’s reinvention of the traditional North American circus — creating theatrical spectacles drawing on Russian and Chinese influences and commedia dell’arte — proved popular on foreign tours. Revenues skyrocketed after a particularly favorable Las Vegas casino deal.

By the end of 2011, Cirque had 22 shows — seven of them in Las Vegas. It had built a 388,000 square foot headquarters in Montreal, much of the building taken up by the costume department that outfits performers in fantastical hand-painted clothes.

Near the peak of the company’s revenues, in August 2008, Mr. Laliberté agreed to sell 20% of the company to Dubai government-owned real estate companies for $545 million, pocketing around $275 million at the time, according to a person familiar with the matter.

But the rapid expansion masked deeper troubles at Cirque. The 2008 transaction valued Cirque at $2.7 billion; five years later, Mr. Laliberté took back a portion of Dubai’s stake at a price that suggested Cirque’s value had declined around 20% to $2.2 billion.

Cirque continued to expand even as the recession cut into demand.

Cirque premiered 20 shows in the 23 years from 1984 through 2006, none of which closed during that time other than its first few. Over the next six years it opened 14 more shows, five of which flopped and closed early.

Polar Bear Sweater

Sunday, December 7th, 2014

I must admit, I got a chuckle out of this polar bear sweater:

Alex Stevens Men's Polar Bear Pair Ugly Christmas Sweater

Canada’s Rangers

Sunday, December 7th, 2014

Canada has its own Rangers, but they aren’t American-style light infantry:

The Rangers are a mainly Native American reserve force the Canadian military refers to as its eyes and ears in the North. Since winning office in 2006, Prime Minister Stephen Harper has talked of boosting the country’s military presence in the sparsely populated Arctic. But Canada continues to mainly rely on a 5,000-strong force of reserves decked out in red hoodies and baseball caps to patrol an area larger than Western Europe.

For Rangers such as Master Cpl. Stephen Anautalik, membership is often less about defending Canada than it is about finding ways to preserve native traditions in a changing Arctic.

“The traditional hunting skills and survival skills, they’ve been lost,” he said.

If the US had followed the British model, it would’ve had all kinds of Indian units. It’s not hard to imagine an Apache commando unit deployed to North Africa in 1942.

The Couch Gag Before Christmas

Saturday, December 6th, 2014

The Simpsons‘ team has some fun with The Couch Gag Before Christmas:

Halifax Explosion

Saturday, December 6th, 2014

On 6 December 1917, the largest man-made explosion in history (to that point) took place, not along the front lines of ongoing Great War, but in a Halifax, Nova Scotia:

The French ship Mont Blanc had just been loaded with a cargo of high explosive in New York: over five million pounds of explosives and inflammables, most of it highly unstable picric acid (Benzol, an octane booster then used in aviation fuel, and guncotton, a primitive explosive, were also aboard). Mont Blanc intended to join a convoy from Halifax to England, but on its way in to the harbor collided with an empty vessel, Imo, that normally ferried humanitarian aid to Belgium. Imo, with a Norwegian crew, was wrong-side-driving out of the harbor as Mont Blanc stood in, on the normal inbound side of the channel.

The crew and harbor pilot of Mont Blanc abandoned ship and fled when their hazardous cargo took fire; the ship drifted to land, drawing curious onlookers, then exploded. The city was devastated, especially the shoreline, the shipyards and docks, and other ships making ready for the next England convoys on the 7th and 11th (a single convoy would leave on the 11th).

Most of the convoy ships were in Bedford Basin, the most protected part of the harbor when Mont Blanc blew up in what locals call The Narrows. Fortunately, Mont Blanc was not near any of the other explosives-laden vessels when it went up.

At least 1,500 hundred lives were snuffed out in the blast and the following tsunami, and hundreds more died in the days ahead. Hundreds of remains were never identified. Some lasting results of the accident were standardization of fire hydrant and hose threads (responding fire departments found that the decimated Halifax department’s hydrants didn’t match their gear), more advance warning required for hazmat transits, and stricter maritime rules of the road in the harbor. There was a long series of saboteur hunts, enquiries, criminal trials, and private lawsuits, but in the end no one was singled out as solely to blame, or punished. It was a terrible accident, but in the end, just an accident.

Halifax Ground Zero

The manifest of the ill-starred Mont Blanc bares the spoor of the probable cause of the disaster — picric acid. This chemical was the first high explosive; its name comes from the Greek for “bitter.” Discovered and initially developed in the 18th Century, it became a dominant explosive and shell filling in the late 19th, when it was discovered initially by British scientist Sprengel. Picric acid was more powerful than the explosive that would come to replace it in most nations’ armories, TNT.

[...]

Because unlike fairly stable TNT, picric acid and its salts — which form spontaneously on contact with common bases — are highly unstable; they tend to detonate when exposed to shock, friction, or flame. Picric acid corrodes metals and becomes more unstable in their presence, making it impossible to contain in metal cans or drums, and requiring special procedures for shell filling.

Before World War I, the German military had begun to shift to TNT. It was made by the same process that yields picric acid, just using a different feedstock; it’s only a little less explosive; and it’s vastly more stable. Over time all armies would follow suit, and fear of a repeat of the Halifax Explosion would be one reason (there were many other industrial and military accidents worldwide with picric acid that soured militaries on the chemical). Later, better HEs would be developed, both from the standpoint of stability and of energy, but it says something that TNT, which the Germans first put into shells in 1902, still is practically useful today.

The reason for going backwards in the power of explosive fillings was safety, and the far more stable TNT would have been unlikely to yield the Halifax Explosion. Even today, found Lyddite or Mélinite shells from WWI pose a threat.

Micro-Bullets vs. Graphene

Friday, December 5th, 2014

Researchers at Rice have shot micro-bullets at graphene and measured the cone of deformation, and the results suggest that it would make excellent armor:

World’s Simplest Electric Train

Friday, December 5th, 2014

The world’s simplest electric train is made from magnets, a battery, and coiled copper wire:

Kettlebell Lessons with a Firearms Instructor

Friday, December 5th, 2014

While perusing Pavel’s fitness site, I was surprised to come across this story from a firearms instructor:

To illustrate the importance of dry fire, consider the story of Dave Westerhout.  Mr. Westerhout is known as one of the founders of the International Practical Shooting Confederation (IPSC) and a trainer for the Rhodesia Defense Force.  In the late 70’s, ammunition was particularly scarce in the African nation of Rhodesia.  This ammunition shortage was due in large part to how unpopular Rhodesia was politically. The native African population was disenfranchised and Rhodesia was breaking away from the British Empire.  Other nations weren’t recognizing them as a nation and multiple trade sanctions were imposed.  One side effect of these sanctions was an extreme ammunition shortage.

Westerhout adapted to the severe ammunition shortage the only way he knew how: dry fire practice.  He conducted experiments with two groups of soldiers.  One would use live fire, the other dry fire.  The results were impressive.  The dry fire group was outscoring the live fire group!  This convinced the leadership to adopt the dry fire practice for the entire force.

Then, in 1977 at the first World Practical Pistol Championship, the Rhodesian team produced some astounding results.  Dave Westerhout took the first place and another Rhodesian took the second, the Rhodesian team won the overall team event!

An American took the third place. All of this happened when the US was considered the dominant force in competitive shooting. All of this happened while Rhodesia faced an ammo shortage. How is this possible? Lots of dry fire!

The advantages of dry fire are obvious. You can do it in your home very quickly and easily. You are not driving somewhere and spending money on range time or ammo. You are getting a LOT of repetition and working on the most difficult of all fundamentals — the trigger control. Anyone can squeeze a trigger. Anyone can align the sights. Can you maintain sight alignment through a smooth yet quick trigger squeeze? If not, DRY FIRE! Start with what takes the least time and costs the least money. Add complexity later!

Now, it should be noted: Dry fire practice does NOT fully replace live fire training. It is just a great supplemental training tool. There are certain fundamentals you just can’t practice without sending rounds down range. For starters, you can’t practice Recoil Management. This stands to reason, as it’s hard to practice managing a gun’s recoil w/out feeling it recoil in your hands. Secondly, you can’t practice the Follow Through. In this instance, that simply means you can’t get a feel for how quickly you can get the gun back on target and send additional rounds down range (should it be necessary). All of that aside, you can practice the most difficult fundamental with dry fire training: the Trigger Control.

Another similarity I noticed is that Frequency Trumps Duration.

Are you training only once in awhile for a long dragged out session that leaves you wiped out? Or are you training more frequently for shorter periods leaving you “stronger or better” than when you started?

Unfit for Duty

Thursday, December 4th, 2014

If you watch the surveillance video of Tamir Rice, you see a “youth” in a hoodie, walking around with a handgun out, and then “10 minutes later,” that same individual getting up from a park bench as a patrol car comes screaming onto the scene — silently, because there’s no audio, and at a very low frame-rate, too.

It does look like Tamir reaches down to his waistband with his right hand — and then he’s down. We have no audio, so we don’t know if the cop yelled “Hands up!” or not — but if Tamir was reaching for a gun, it’s hard to blame the officer for shooting first, even if it turned out to be a replica.

It does raise the question of why they came roaring in like that though. Did they think they had an active shooter situation?

I don’t know the standard protocol for addressing a thug with a pistol, but I’d want my shotgun and some distance — and back-up, of course.

It turns out the real reason everything went sideways is likely pretty simple — the officer who shot Tamir Rice was unfit for duty:

The Independence police memo describes an episode in which a supervising officer suspended gun training with Loehmann after Loehmann had an emotional breakdown about a girlfriend.

“During a state range qualification course, Ptl Loehmann was distracted and weepy,” Polak wrote, naming the trainer as Sgt Tinnirello. “[Loehmann] could not follow simple directions, could not communicate clear thoughts nor recollections, and his handgun performance was dismal. Sgt Tinnirello tried to work through this with Ptl Loehmann by giving him some time. But, after some talking it was clear to Sgt Tinnirello that the recruit was just not mentally prepared to be doing firearm training …

“Ptl Loehmann continued with his emotional meltdown to a point where Sgt Tinnirello could not take him into the store, so they went to get something to eat and he continued to try and calm Ptl Loehmann. Sgt Tinnirello describes the recruit as being very downtrodden, melancholy with some light crying. Sgt Tinnirello later found this emotional perplexity was due to a personal issue with Ptl Loehmann’s on and off again girlfriend whom he was dealing with till 0400 hrs the night before. (Pti Loehmann was scheduled for 0800 the morning in question).”

Some of the comments made by Ptl Loehmann during this discourse were to the effect of, “I should have gone to NY”, “maybe I should quit”, “I have no friends”, “I only hang out with 73-year-old priests”, “I have cried every day for four months about this girl.”

In recommending Loehmann’s dismissal, Polak listed what he said were other performance shortcomings, including Loehmann’s having left his gun unlocked, lied to supervisors and failed to follow orders.

“Due to this dangerous loss of composure during live range training and his inability to manage this personal stress, I do not believe Ptl Loehmann shows the maturity needed to work in our employment,” Polak concludes. “For these reasons, I am recommending he be released from the employment of the city of Independence. I do not believe time, nor training, will be able to change or correct these deficiencies.”