Monday, February 29, 2016

Cottonseed Yet Again

I've blogged on the issue of making cottonseed an oilseed before.  Here's a good backgrounder by Keith Good on the issue. 

Short summary: bowing to Brazil's victory on cotton programs at the WTO, Congress took cotton out of the other farm programs in the 2014 farm bill.  Didn't touch authority on oilseed designation.

Y2K as Metaphor: International Date Line

From a NYTimes piece reporting on a DOD study raising problems with potential autonomous weaponry, which selects its own targets.
The Center for a New American Security report focuses on a range of unexpected behavior in highly computerized systems like system failures and bugs, as well as unanticipated interactions with the environment.
“On their first deployment to the Pacific, eight F-22 fighter jets experienced a Y2K-like total computer failure when crossing the international date line,” the report states. “All onboard computer systems shut down, and the result was nearly a catastrophic loss of the aircraft. While the existence of the international date line could clearly be anticipated, the interaction of the date line with the software was not identified in testing.”
 I guess the Y2K may work as a metaphor because it refers to a fact which existed and should have been accounted for in system design, but wasn't.  I'd add it to the failure of a Mars mission because of interfacing systems, one of which used metric, and one of which used American.


Sunday, February 28, 2016

How the English Were Fooled by Geography

In the Age of Exploration sailors could establish their latitude (ie. how much north or south of the equator they were).  So English sailors knew the latitude of London was 51 degrees north.  Naturally when they first visited what they'd call New England, they figured that since the latitude was 41 degrees, or about 700 miles south of London, the weather should be warmer.  But Bartholomew Gosnold writes his father:
it is the latitude of 41 degrees, and one third part; which albeit it be so much to the southward, yet it is more cold than those parts of Europe, which are situated under the same parallel: but one thing is worth the noting, that notwithstanding the place is not so much subject to cold as England is, yet did we find the spring to be later there, than it is with us here, by almost a month: this whether it happened accidentally this last spring to be so, or whether it be so of course, I am not very certain; the latter seems most likely, whereof also there may be given some sufficient reason, which now I omit; as for the acorns we saw gathered on heaps, they were of the last year, but doubtless their summer continues longer than ours.
 Of course he was wrong--the New England summer is shorter and hotter.  Because the Gulf Stream had not yet been discovered as a thing affecting climate, Gosnold was fooled by geography and logic: similar latitudes should have similar climates.  According to my logic, this ignorance probably meant colonizing expeditions were less well prepared than they would have been if climate had been understood.

Friday, February 26, 2016

Less Equality Everywhere, Including Math

Atlantic has a nice piece on increasing achievement by American teenagers in math.  Why?  "problem solving", outside class programs, STEM parents.  But these things are available to the richer among us.
"National achievement data reflect this access gap in math instruction all too clearly. The ratio of rich math whizzes to poor ones is 3 to 1 in South Korea and 3.7 to 1 in Canada, to take two representative developed countries. In the U.S., it is 8 to 1. And while the proportion of American students scoring at advanced levels in math is rising, those gains are almost entirely limited to the children of the highly educated, and largely exclude the children of the poor."

Once upon a time I was good in math.  Participated in a state-wide test (the Mathematical Olympiad) in my junior year, did well, again my senior year, not so well.  It's been downhill from there.

Thursday, February 25, 2016

Vietnam Wall Replicas

I never would have thought of replicas of the Vietnam Wall, much less that there were traveling exhibits of it.  But GovExec has an article on the replicas, and DOD"s RFP for another in preparation for the 50th anniversary of the war.  I'm not sure what they're using as the starting date, certainly the first person on the Wall preceded 1966.  Thanks to wikipedia we learn it was 10 years earlier, and he was killed by "friendly fire", so to speak.  A fitting opening to a very complex and confused episode in history.

My personal 50th anniversary won't be for another 16 months or so.

Wednesday, February 24, 2016

The Lady in the Van

Enjoyed this movie very much.  I see on Rottentomatoes that the critics liked it better than the public (92 percent to 75). I suspect the difference is because it's not the heartwarming story you might expect.  I laughed a lot, perhaps because I'm old enough to enjoy some black humor, perhaps because I just carried over a reflex from watching Maggie Smith in Downton Abbey.  As usual, she's very convincing.

Monday, February 22, 2016

A Tear for Justice Douglas

Nathan Yau at Flowing Data has a chart of the liberal/conservative scores of all justices since 1937.  The point is to show how replacing Scalia will make a big change in the median justice.  It's fine for that.

But for me, a person who remembers the days of "Impeach Earl Warren", it's fun to look toback over history.  Liberals today are more tightly grouped than in the last 50 years.  But look at the outliers over time.  Justice Thomas is one, but the real outlier is Justice Douglas.  The metrics used run from -6 to +4 with minus being liberal and plus being conservative.    So, during the years shown (1937-2015) the outliers are:
  • Douglas (-6)  (eyeballed) who wanders ever more "liberal" until the end
  • Rehnquist (-4.5) who's most conservative in 1975 but grows more and more moderate, particularly after becoming chief.
  • Marshall (-4.3) who becomes more liberal
  • Brennan (I think) (-3.9) who becomes more liberal
  • Thomas (+3.5) who's pretty consistent, a bit more moderate in recent years
  • Scalia (+3.5) who's amazingly changeable, starting off at +1.2, going to +3.5 in 2000 and back to +2
The conservatives get frustrated with the Court.  A clue to why might lie in an eyeball comparison of liberals and conservative justices since Nixon--the conservative paths seem to be more scattered and variable than do the liberal ones (particularly after discounting Brennan and Marshall).  The variability probably means they're less effective in joining to form a majority.

[updated--the reason for the title of the post--Justice Douglas was talented, but he became seriously odd in his later years.)

Sunday, February 21, 2016

Request for Information on Acreage Reporting

USDA is:
investigating the use of a commercially available service to provide a reporting system to support Farm Service Agency (FSA) and Risk Management Agency's (RMA) common acreage and crop reporting compliance and other program needs. The objective of this RFI is to investigate whether commercial capability presently exists that can supply a viable alternative to the current Java based in-house system. 

The actual RFI is here.

Looking at the template for responding, I'm wondering whether there's been previous extensive meetings with potential respondents.  If there hasn't, the respondents may be at a loss to complete many of the items.  

China's Rural Areas and America's

FiveThirtyEight  has a post on Monroeville, AL, which has changed since the 1930's.   That reminded me of this NYTimes piece on China's rural areas.  President Xi visited a rural town:

The bucolic scenes, shown on Chinese state television, cast Mr. Xi as a paternal leader in the footsteps of Mao, at home with the rustic virtues that once made this mountainous region of southeast China a birthplace of the Communist Party’s rural revolution.

But those images conflict with contemporary reality here. Within days, this struggling community of 250 souls will be nearly empty.

Like an increasing number of villages across China, most of its people have left to find work or attend school elsewhere, returning to their ancestral home only for the New Year holidays. The rest of the year, only 50 or so people live here, most of them elderly, usually fending for themselves.
 My point?  China's social evolution is similar to the US one, except much faster.  In our case, the rural areas emptied out over decades; in theirs, just years.  (