Archive for October 23rd, 2009

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Pandora+iPhone = Excellent car radio even in Lubbock

October 23, 2009

Michael Giberson

I haven’t been much of a radio music fan since, I don’t know, high school.  I liked music that wasn’t played much by the local radio stations and in general the signal-to-noise ratio on most radio stations was too small.  Cassette tapes, then CDs were part of the answer, but that cuts off access to new tunes.

Fast forward to the present. Lubbock radio is mostly not too interesting for me.  Classic Rock. Pop. Pop Rock. Country. Latin.  One “alternative” station with a weak signal but wide-ranging playlist, and usually my choice in the car. (Too be fair, Washington DC music radio wasn’t too interesting, either, after the demise of WHFS other than the occasional jazz programs and Texas Fred’s Zydeco show on WPFW.)

Now there is a new option.  Pandora is one of my favorite online music services.  Recently picked up an iPhone.  More recently added the Pandora iPhone app.  Just discovered that the adapter my wife has to connect her iPod to the car radio also works fine with my iPhone.

I can run Pandora in my car.  If you have Pandora and a compatible phone and a way to link to your car radio, so can you.

Fantastic.  And when I get to my destination I can pop the iPhone out of the adapter, insert headphone jack, and keep the music rolling.

How about little Snooks Eaglin radio to celebrate?

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Raising a generation of grittier children

October 23, 2009

Michael Giberson

Do we need “grittier” children?  No, not messier children, but children with more grit, as in more stick-to-it-iveness and dedication.  A growing body of evidence is supporting the obvious – that success requires dedication and effort as much or more than intelligence.  Maybe obvious, but for decades the U.S. educational system and career counselors have been sorting people based on intelligence tests and trying to find ways to boost IQ scores.  That growing body of evidence is suggesting that we need ways to boost grittiness (will we be sorted by GQ scores?).

Author Jonah Lehrer (How we decide, Proust was a neuroscientist) wrote in “The truth about grit“:

One of the most important elements is teaching kids that talent takes time to develop, and requires continuous effort. Carol S. Dweck, a psychologist at Stanford University, refers to this as a “growth mindset.” She compares this view with the “fixed mindset,” the belief that achievement results from abilities we are born with. “A child with the fixed mindset is much more likely to give up when they encounter a challenging obstacle, like algebra, since they assume that they’re just not up to the task,” says Dweck.

In a recent paper, Dweck and colleagues demonstrated that teaching at-risk seventh-graders about the growth mindset – this included lessons about the importance of effort – led to significantly improved grades for the rest of middle school.

Interestingly, it also appears that praising children for their intelligence can make them less likely to persist in the face of challenges, a crucial element of grit.

More recently Lehrer writes about “Learning from mistakes“:

Conventional pedagogy assumes that the best way to teach children is to have them repeatedly practice once they know the right answer, so that the correct response gets embedded into the brain. (According to this approach, it’s important to avoid mistakes while learning so that our mistakes get accidentally reinforced.) But this error-free process turns out to be inefficient: Kids learn material much faster when they screw-up first. In other words, getting the wrong answer helps us remember the right one.

So, if I try to translate this into my daily work teaching college students, I guess I should give students opportunities to screw-up first so that they will learn much faster later.

I’m always trying to improve my pedagogical skills, but I will say (with some pride, I might add) that some of my students are way out ahead of me on this front.

[Note: I should probably point out that this last line is intended to be a joke.  It probably isn't very funny.  Professional driver on closed course.  Your mileage may vary.  Never mind.  It's been a long week.]

HT to Broken Symmetry.

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Smart meter benefits mostly going to utilities so far

October 23, 2009

Michael Giberson

Regular readers of Knowledge Problem will know that both Lynne and I are enthusiastic about the potential for smart meters and the smart grid to benefit consumers. (The difference between us on this topic is that she knows much much more than I do.  Examples: One, two, three, and four.)  But, as Lynne has explained before, a utility-centric approach to the smart grid can frustrate the potential consumer benefits.

So far, the utility-centric approach is dominant, and as a result – as Andy Stone explains at Forbes.com – utilities are benefiting from smart meters mostly at consumer’s expense. Advanced meters get installed, typically accompanied by a surcharge on the consumer, and they help the utility cut costs.  Eventually, in a world governed by state regulation of monopoly utility rates, those savings should be passed along to consumers.

Stone wrote:

Utilities get a good deal on smart meter investment. The meters send power usage information directly to power companies via the Internet or wireless networks, replacing human meter readers. Utilities can also use the meters to remotely turn off power when a customer moves out or fails to pay bills, or automatically reroute electric power when a storm knocks out power lines.

Such operational savings cover about 70% of smart meter investment, according to the California Public Utilities Commission. California’s three major utilities have installed a million smart meters since 2006 and plan to have all homes wired by 2012.

But “the power companies are spending on rate payers’ account,” says Nancy Brockaway, a utilities attorney and former counsel with the New Hampshire Public Utilities Commission. Rate payers foot the bill for the meters through higher utility bills. “Utilities don’t have much skin in the game,” she says.

What do consumers get for their smart grid investment? Apparently, not much.

“In terms of energy efficiency and conservation, just installing a smart meter isn’t going to have much effect,” says Greg Guthridge, a smart-grid consultant with Accenture.

The article continues by explaining that consumers need a complementary rate structure to gain much benefit from smart meters.  Real-time rates or time-of-use rates are the suggestions offered.  The article speculates on smart meter value in the Texas deregulated market:

… demand response will likely be a tough sell in very deregulated electricity markets such as Texas, where customers can choose from dozens of power retailers that compete by offering the lowest, most predictable energy prices.

Tough sell?  Maybe, but it will be easier to sell real-time pricing and demand response to consumers that also have the opportunity to select among alternative competing rate packages.  Presumably only consumers that expect to benefit will be tempted to switch, and the burden of proof will be on the companies wishing to sell such contracts.

The article suggests making dynamic pricing the default option.  This is one of the approaches promoted by James Bushnell, Benjamin Hobbs and Frank Wolak in their article, “When it comes to Demand Response, is FERC its Own Worst Enemy?Electricity Journal, 22:8, October 2009, (ungated version here), and I’m in favor. But the evidence so far has suggested that the real “tough sell” has been to get state regulators to accept dynamic pricing and consumer-centric demand response in place of easy-to-explain status quo of flat rates.

NOTE: For background on regulation, dynamic pricing and demand response, see “What Could Possibly Be Better than Real-Time Pricing? Demand Response,” by Fereidoon Sioshansi and Ali Vojdani (Electricity Journal, Volume 14, Issue 5, June 2001.)

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