Thursday, April 18, 2013

Driverless Bus Drones?

Had a thought today--suppose you put drone software and Google driverless car software in a bus?  So the idea is, the bus follows a standard route, which cuts the complexity of the job the software has to do.  The Google software works to get the bus around the route, but is set to put the bus in "safe" mode if there's any problem (i.e., a problem on the bus, a road situation it can't handle).  Meanwhile the "drone" software enables a remote operator  to monitor the bus and to step in to resolve problems. 


Digital Public Library Goes Live

The Digital Public Library of America (dp.la) is going live this week, today in fact.  Remember Google Books--this is more ambitious.  From the announcement, it will be: "
  • First, an easy-to-use portal where anyone can access America’s collections and search through them using novel and powerful techniques, including by place and time.
  • Second, a sophisticated technical platform that will make those millions of items available in ways so that others can build creative and transformative applications upon them, such as smartphone apps that magically reveal the history around you.
  • Third, along with like-minded institutions and individuals the DPLA will seek innovative means to make more cultural and scientific content openly available, and it will advocate for a strong public option for reading and research in the twenty-first century."
One thing which bugs me is all the information which is not easily available, even though it's public. For example, trying to access the Congressional Record for years before roughly 1990 is difficult.

Wednesday, April 17, 2013

A Great Epitaph for Lady Sale

Via The Best Defense, a 10 best list of books on Afghanistan .  The entry for Lady Sale's book says:
Lady Sale was possibly the only Brit to come out of the first Afghan war with her reputation enhanced. She arrived with an unmarried daughter, seeds from her Agra garden and a grand piano. She survived the retreat from Kabul, with a musket ball in her shoulder and in due course led a jailbreak of her fellow hostages. Her tombstone reads: "Here lies all that could die of Lady Sale."

Big Apple Men Are Gentlemen

According to the NYTimes, a study of subway manners showed that more men stand than women, indicating that  New York city men are gentlemen.

Tuesday, April 16, 2013

What We Don't Know About the Globe

Joel Achenbach explains the vanishing island in the Pacific, and throws in the fact the Navy still has seven ships exploring the oceans, simply because we don't know where all the islands and sea mounts are.

Monday, April 15, 2013

Some People Are Too Talented

From the bio posted here of Gregory Mankiw
Mankiw is best known at Harvard for his work in economics and for his immensely popular Introduction to Economics class — or Ec 10. His parallel profession as one of the world’s leading interpreters and conductors of Beethoven’s oeuvre is less well known in Cambridge. A child prodigy, Mankiw studied piano at the Universität für Musik in Trenton, N.J., not far from where he grew up. While earning a B.A. at Princeton University and Ph.D. at MIT, the ambitious conductor concurrently earned his M.M. in orchestral conducting from Carnegie-Mellon. At the Pierre Monteux School for Conductors, he garnered special recognition for his micro attention to detail and macro approach to sound.
Before joining the faculty at Harvard, Mankiw studied with the esteemed Fritz Frockenstem in the Orchestral Conducting Division of the London School of Economics. Museconominsts and arts critics used the word “revolutionary” to describe the 1980s world tour during which Maestro Mankiw performed with every major orchestra including the Royal Concertgebouw Orchestra, Berlin Philharmonic, Vienna Philharmonic, Leipzig Gewandhaus Orchestra, London Symphony and the Dresden Staatskappelle. Stateside, he has led orchestras in Chicago, Cleveland, Los Angeles, New York and at the Metropolitan Opera.
 Strangely, his wikipedia entry doesn't reflect all this.


I'm sure Harvard and Boston will give a big turnout for the event (Arts Fair).

Saturday, April 13, 2013

Disappointing Obama Bureaucrats

I saw somewhere that the HHS Secretary expressed surprise at the difficulty of implementing Obamacare.  And there was an op-ed somewhere suggesting VA Secretary Shinseki should be ousted because of the backlog in VA claims.  (See this related article.)

Based on what I know, or rather read, which may be wrong, I'm not impressed with either secretary--one of the primary jobs of a managing bureaucrat is to foresee the future and plan ahead.e.

The VA is always a downstream agency; it gets DOD's output. So it shouldn't have been hard to look at DOD operations since 2002 and foresee a rising workload over the years.

Friday, April 12, 2013

How Do Trains Stay on the Track?

Jason Kottke posts a Richard Feynman video in which he explains that question, after he tells us why trains can go with solid axles and no differential.

What I now want to know is when was the method invented?  And why didn't Conestoga wagons need a differential (I assume because the wheels could slip?)

[Updated:  turns out the conical shape also contributes to the sway of a railway car.  See this wikipedia article on "hunting oscillation" ,which is a generic name for the phenomena.  And this article goes into more detail than the Feynman video.  It also briefly mentions an alternative to the coned wheel--canting the track.  Not quite clear on how that works--a canted racetrack presumably uses gravity to counterbalance centrifugal forces.  Is that the effect of a canted rail track, or does it also reduce the difference in distance traveled by outside and inside wheels?  Still nothing on when coned wheels were invented.]

Chopper Pilot as Bureaucrat

Tom Ricks' The Best Defense has a post entitled "A Military Genre: a List of the Hard-Won Wisdom of Combat Helicopter Pilots.

You might say there's no way a pilot and a bureaucrat have anything in common, and you'd be almost right.  But don't you think these bits apply?

"6. Decisions made by someone above you in the chain-of-command will seldom be in your best interest.

10. If everything is as clear as a bell, and everything is going exactly as planned, you're about to be surprised. 

14. If the rear echelon troops are really happy, the front line troops probably do not have what they need.

34. Nobody cares what you did yesterday or what you are going to do tomorrow. What is important is what you are doing -- NOW -- to solve our problem.  "

Some of the other items are specific applications of Murphy's Law.