Bug Power Generator

Most power plants create electricity by spinning a magnet while it’s inside a coil of wire. That how coal power plants do it, it’s how hydroelectric power plants do it, it’s how wind plants do it, it’s even how nuclear power plants do it; solar power panels don’t do it this way, however. The coal and nuclear plants, for example, boil water to create steam which spins the turbine that rotates the magnet.

In theory, you can use any type of power source to spin the turbine, including people power. On bicycles, you can use them to power your lights. But because you’re now using some of your mechanical energy to create electricity, it will slow you down a bit. Newer, hub dynamos, however, are apparently quite efficient.

So, in theory, you could use any type of animal to generate electricity. Including, for example, using bugs to charge your iPod.

I love how he holds up the voltmeter 34 seconds into the video to prove that his device works.

The Ingredients of “Character”

Some key performance-character strengths:

zest, grit, self-control, social intelligence, gratitude, optimism and curiosity.

— Tough (2011): What if the Secret to Success Is Failure? in The New York Times’ Education Issue

Paul Tough’s thought provoking article is a great overview of some of the recent research on character, and discusses a few attempts to instill character building into school.

Levin [co-founder of the KIPP network of charter schools ] noticed that … the students who persisted in college were not necessarily the ones who had excelled academically at KIPP; they were the ones with exceptional character strengths, like optimism and persistence and social intelligence. They were the ones who were able to recover from a bad grade and resolve to do better next time; to bounce back from a fight with their parents; to resist the urge to go out to the movies and stay home and study instead; to persuade professors to give them extra help after class.

— Tough (2011): What if the Secret to Success Is Failure?

Much of the work on character is based on the universal character characteristics identified in the book Character Strengths and Virtues: A Handbook and Classification (Peterson and Seligman, 2004) and the research of Angela Duckworth (her research page is a good place to find copies of her publications).

Duckworth’s Grit Scale, seems to be a remarkably good predictor of GPA, and perhaps more interestingly, corresponded inversely to the number of hours of television students watched: “gritter” students did better in school and watched less TV.

Among adolescents, the Grit–S [short Grit Scale] longitudinally predicted GPA and, inversely, hours watching television. Among cadets at the United States Military Academy, West Point, the Grit–S predicted retention.

— Duckworth and Quinn (2009): Development and Validation of the Short Grit Scale (Grit–S)

The grit survey would probably be a useful addition to the Personal World curriculum.

One interesting application discussed in the article is at the KIPP middle schools in NYC. There they issue a Character Report Card and integrate discussion of character into all the classes: a language class might talk about how much self control the protagonist in a novel has and how that works out for them.

I’d be extremely reluctant to have to grade my students on twenty four character traits. While it might be a useful rubric to have and discuss and build on students’ positive self-conceptions, I fear that it might also significantly reinforce the negative conceptions as well.

Imbuing a language of character as a subtext of the curriculum seems like a great idea however.

Performance vs. Moral Character

One important critique of much of this work is that it focuses on “performance” character, the character traits that predict high achievement, rather than “moral” character which focuses on the ability to work well with others.

These two perspectives on the same character traits need careful attention. From a performance perspective, social intelligence, can be seen as a way of getting ahead – something that is somewhat manipulative, but from a moral perspective, social intelligence is intrinsically beneficial to the person and the society around them.

And perhaps this is the biggest problem with performance-character. It is extrinsically motivated: do this and you will get this reward. The intrinsic nature of moral-character seems much more in line with a progressive approach to teaching. Certainly, much care should be taken in how we think about and include character building in education.

The Character Education Partnership has a number of lesson plans and best practices for all grade levels, that focus more on moral character.

Giving Students the Opportunity to Fail

Finally, Tough talks about the fact that students need the time and space to explore, try difficult things, and to fail, in order to really build character.

The idea of building grit and building self-control is that you get that through failure, and in most highly academic environments in the United States, no one fails anything.

— Dominic Randolph (2011) in Tough (2011): What if the Secret to Success Is Failure? in The New York Times’ Education Issue

This is tied into the central theme of the movie Race To Nowhere and the book The Price of Privilege, that argue that, for many affluent students, the stress of excessively high academic expectations are having some seriously negative effects.

People with self-respect have the courage of their mistakes. – Joan Didion (1961), via Word on the Street (2010)

(hat tip to Ms. D. for the link to the article)

The Story of Stuff and the Life Cycle of a Cell Phone

The life cycle of a cell phone. (Produced by the EPA. Link goes to a pdf).

The EPA’s student resource page has a few interesting publications on the life cycles of a few common products: CD/DVD’s, cell phones, and soccer balls.

They’re a bit noisy, and would probably benefit from being reproduced in a more interactive format (Flash maybe), but they’re still a useful resource for talking about life cycles.

They’re a less dramatic presentation which can supplement the advocacy of the Story of Stuff video.

Zipline to School

Nine year old Daisy Mora takes the zipline to school every day. Her five year old brother is in the bag. Image by Christoph Otto via the Daily Mail.

Photographer Christoph Otto has a few utterly amazing photographs of the kids of Rio Negro in Columbia, who have to take a zipline to get across the valley to school.

This video gives more details.

It might also be useful if students need some incentive to try the zipline at the challenge course.

Live from 1500 Meters Deep

Link to live video feed from the ROV ROPOS surveying a cable on the ocean floor at the Juan de Fuca midocean ridge.

Live science. The remotly operated submersible ROV ROPOS is surveying an undersea cable recently laid across the the Juan de Fuca midocean ridge.

This scientific expedition will be going on until the end of August, and there’ll be live feeds every time the rover is deployed (which depends a bit on the weather at the surface).

If you have questions, they’re also answering your tweets.

Right now, the rover’s heading toward the caldera of the axial seamount volcano. It should get there some time tonight (if they don’t have to stop for anything). So far, we’ve seen dumbo octopuses, crabs, weird fish, brainless worms, sponges, deep sea corals, starfish and lots of pillow basalt. The basalts are unsurprising because these are the rocks produced when volcanos erupt under water.

Dumbo octopus (from the ROV ROPOS seafloor gallery at Interactive Oceans).

Signs of Water on Mars?

Water is necessary for life as we know it, which is why the search for life on other planets and moons in the solar system has been focused first of all on finding water. NASA now reports signs of water on Mars. Salty water perhaps, and even now there is no direct evidence that it is water and not some other fluid, but this is the first evidence of there being liquid water on Mars today.

The video above explains, and the BBC has a good article.