by

Replicating

This could help with a house move. All you need to do is

  1. Scan everything you own in the old house, including the car and piano;
  2. Save the scan files on your laptop;
  3. Move, remembering to bring the laptop;
  4. Print it all out again once you’re in the new house.

This would not only save on moving costs, but would also simplify the decision process regarding what’s worth moving.

If you needed to modify something, you’d need to do that at a Community Fab Lab, such as the one at the University of Illinois, which

is equipped with commercially available rapid prototyping manufacturing equipment, such as a laser cutter for carving out 2D and 3D structures; a precision milling machine for 3D molds or circuit boards and a larger one for making furniture or larger parts; rapid prototyping equipment for 3D printing with plastic; a sign cutter for creating graphics or plotting flexible electronic circuits; and electronic assembly tools.

Volunteer and youth in the Fab Lab (U Illinois I-STEM photo)

Volunteer and youth in the Fab Lab (U Illinois I-STEM photo)

by

People of the rebus

Camp family, 1900

Camp family, 1900

If you’re curious about the rebus baby announcement––Who sent it? Who was the baby? Who was Dorothy?, this may help a little.

Camp family, legend

Camp family, legend

The picture to the left (click to enlarge it) is of the Camp family, around 1900. In the center is Samantha Ann Harris Camp (11), who was known to the others in the photo as “Grandma.” She was born in southern Pennsylvania on July 3, 1835. When she was one year old, her family went down the Ohio by flatboat, then up the Mississippi and Illinois to the beautiful area of Sharp’s Landing, not far from where I’ve done some youth media work in Beardstown and Virginia.

Sharp's Landing area, by JaySRT4

Sharp's Landing area, by JaySRT4

Samantha Harris taught school in Vermont, Illinois, then married Sterling P. Camp and moved with him to his farm in Walnut Grove. They had five children: Thomas (5) William (12), John R. (21), Frank (1), and Anna (13), who surround her in the photo. They later moved to Bushnell. John R. Camp became Editor of The Bushnell Record, the local weekly.

Unfortunately, Sterling died young. One consequence was that Samantha outlived him by more than 40 years and had to raise the five children mostly on her own. She died on January 10, 1913, thirteen years after this photo was taken in front of their family residence in Bushnell.

By the time of the photo, Samantha’s son William had married Jennie Daniels (4), who came from Spokane. Their children were John (20), Glanville (19), and Dorothy (18).

Fannie Daniels (not shown) was one of Jennie’s siblings, the others being Minnie, Annie, and Willie. As far as I know, none of them married or had children. (Aunt) Fannie was the one who created the rebus for Dorothy, about five years after this photo.

What did Dorothy think of it? Did she decode it on her own? Was Fannie in the habit of making rebuses for her nieces and nephews? The Camp family seemed adept at producing offspring; why not the Daniels? How did William from rural Illinois connect with Jennie in Spokane? I need to find a flatboat and go back in time to find out.

by

Tau Day, 2011

Happy Tau Day! Today is June 28, or 6/28 in the US date format, and τ = 6.283185307179586…

There’s a movement of sorts to use τ (which is equal to 2π), instead of the more familiar π. π is the ratio of the circumference, C, of a circle to its diameter, D.

π = C / D

τ proponents say that since a circle is defined as the set of points a fixed distance (the radius, r) from a given point, a more natural definition for the circle constant would use r:

τ = C / r

This of course makes τ equal exactly to 2π. One might well ask, “What’s the big difference?” τ advocates say simply, “π is wrong.” By this, they don’t mean that it’s wrong to say:

C / D = 3.14

That equation is wrong mathematically, just as any calculating device is wrong because it has to approximate π. Neither π, nor τ can be expressed as a simple fraction (or as a terminating or repeating decimal). But the argument here is not about approximations. It’s that π is wrong pedagogically: π is a confusing and unnatural choice for the circle constant. The confusions run through all sorts of statements about circles, angles, statistical and physical relationships.

The full reasons for using τ are explained in Bob Palais’s article P Is Wrong and in Michael Hartl’s The Tau Manifesto, which is

dedicated to one of the most important numbers in mathematics, perhaps the most important: the circle constant relating the circumference of a circle to its linear dimension. For millennia, the circle has been considered the most perfect of shapes, and the circle constant captures the geometry of the circle in a single number. Of course, the traditional choice of circle constant is π—but…π is wrong. It’s time to set things right.

Michael Blake has created a musical interpretation of τ up to 126 decimal places. It maps τ to musical notes, and sounds quite nice:

by

A rebus baby announcement

In these times, we hear about family events through cell phones, Facebook, Twitter, and for a few old-timers, email. I got to meet a new grand-nephew that way just last week.

Chloe & Bishop

But that wasn’t always so. I came across an older technology while we were cleaning up our attic. It’s a rebus announcing Sunny Baby Jim, with at least 230 cut-outs from newspapers and magazines pasted onto a continuous roll of brown wrapping paper. It not only announces the baby, but also provides a glimpse into life in the US in 1905.

The paper for the rebus has become brittle and is starting to crumble. Some of the cut-outs are faded.I decided I should photograph it and decode it before it disintegrates completely.

It’s probably from my Great-Great-Aunt Fanny in Spokane, writing to my Grandmother, Dorothy in 1905. See whether you can decode it. The images aren’t very clear in the small versions, but should be more readable if you click each one to enlarge it.

There’s a scrap cityscape of Spokane, which probably came first. So, I think the first part says,

Spokane

Dear Little Dorothy,

I send you a puzzle to make you laugh.

It is raining cats, dogs, and babies.

The babies shown include the Gold Dust Twins, mascots for Gold Dust Washing Powder. Those racial caricatures were wisely phased out, but not for another 50 years.

Aunt Fanny goes on to ask:

Would you like to hear about the new baby in this house? He weighs nine pounds and sleeps all night, that’s the way babies grow. When he smiles we call him Sunny Jim Baby.

Then, there’s a comment about babies in general, and some local news:

Before babies sleep and after babies sleep, they eat, all the time.

I have a new pair of shoes and they hurt my feet and corns.

We got awakened one night. A shot was heard around the house. We called two policemen and he ran away.

How is Grandmother? I am getting so fat.

Spokane is soon to have a circus. [There’s then a six-frame comic strip set in a circus ring.]

While looking up information on that circus, I learned that a steel bridge with power wires for streetcars and overhead lighting was constructed over the Spokane River Gorge after the wooden bridge burned in 1890. The new bridge vibrated badly, and in 1905 the National Good Roads Association declared it unsafe. The Ringling Brothers Circus elephants refused to cross it. It was replaced in 1911.

The closing of the rebus reports some national news:

It is time for a bath and bed.

Love to the whole damn family.

PS: Teddy Roosevelt is in Colorado. [He went bear hunting there in 1905.]

Your Aunt [Fanny]

I don’t know how long we can keep the original of the rebus, thus this post to preserve it in a limited way. But it’s held up surprisingly well after 106 years, especially since it had not been cared for, just tossed into boxes in attics or garages. Will we be able to read this blog post as well in the year 2117?

Thanks, Aunt Fanny for your fascinating artwork. I suspect that few aunts (or uncles) today could or would invest the time to make such a detailed token of love for their niece.

by

The ‘Invisible’ Forces of Haiti

Elizabeth Pierre-Louis

Elizabeth Pierre-Louis

I heard a very impressive lecture yesterday titled, “The ‘Invisible’ Forces of Haiti—How Can Books and Culture Help the Reconstruction Process,” from Elizabeth Pierre-Louis, library program coordinator at the Fondation Connaissance et Liberté (FOKAL), Haiti. There should soon be links to a video recording and the text from the summary.

The talk reminded me of  the devastation of the Haiti earthquake. As bad as the 1989 Loma Prieta earthquake in California was, the recent earthquake and tsunami in Japan was many times worse than that in terms of deaths and homes destroyed. But the Haiti earthquake was many times worse than Japan’s with as many as 300,000 killed and 1.5-2 million homeless. The current cholera epidemic shows that even a terrible situation can become worse.

Haiti has neither the money nor the technical expertise to recover, and half of the people are under age 21 (some sources say half are under 18). It’s also one of our closest neighbors, and many of its problems are directly traceable to the US’s unquestioning support for the Duvaliers’ dictatorship that robbed the country of what little it had. Last year, the world pledged $5 billion in aid, which was not nearly enough, but then delivered on only a third of that.

It’s inspiring, and humbling, to see how Haitians continue to live, to create, and to work together in spite of challenges no one should have to face alone.

by

An old English dinner

deer at birdbath

deer at birdbath

With all the snow, it’s felt like a storybook Christmas time.

The deer are regular visitors. They have to resort to holly leaves, which is not their favorite, because they’ve eaten everything else in the yard that is now, or ever was green.

home at Christmas time

home at Christmas time

We’ve been sledding and Emily and Stephen went caroling twice. They also cooked an old English dinner, in the traditional style. However, I should add, “traditional” here requires you to take Harry Potter as your source.

Harry Potter menu

click to see the full menu

The Harry Potter Restaurant’s December Feast started with Warm and Hearty Mulligatawny Soup, followed by Brussels Sprouts with Chestnuts and Mashed Parsnips. The libation was Pumpkin Juice and we finished off with Blancmange. It was a delicious meal, perfectly appropriate for a snowy December evening.

You can see the menu below left.

by

Can a community stop fracking?

Photo courtesy creative commons by Helen Slottje

Mari Margil and Ben Price have a detailed article in Yes! magazine this month about Pittsburgh’s recent ban on natural gas drilling, which uses the “fracking” or hydraulic fracturing technique. Pittsburgh is the first major city in the US to ban corporations from natural gas drilling.

The ordinance has a direct impact on Pittsburgh, but as they point out, its implications go much further:

Provisions in the ordinance eliminate corporate “personhood” rights within the city for corporations seeking to drill, and remove the ability of corporations to wield the Commerce and Contracts Clauses of the U.S. Constitution to override community decision-making.

Community decision making is essential in this arena for two reasons: First, exemptions to the Clean Water Act and the Clean Air Act for the oil and gas industry, expanded even further in 2005, mean that the burden of proof is now on communities to prove that any drilling practice is unsafe. This, it’s essential that communty decision making be supported and seen as the proper venue for judging the value of any drilling. Second, no individual landowner can have much impact on the drilling. The horizontal drilling methods mean that the fracking can proceed, regardless of landowner approval. All the landowner can do is decide to forego any royalties. This effectively grants all power to the corporation doing the drilling.

This issue hits home for me, since Fort Worth has been a major site for fracking (Smith, 2010). Although the oil and gas industry has asserted that fracking does not pollute underground water supplies or air quality, does not cause earthquakes, and is all in all a benign way to produce clean energy, it’s difficult to accept the assertions when they continually seek exemptions to EPA review and refuse to release data on the chemicals and procedures they use.

References

by

Jane Addams Conference on Social Entrepreneurship

I just learned, too late I’m afraid, about the Jane Addams Conference on Social Entrepreneurship to be held in Uppsala, November 18-19. It’s organized by the department of Sociology at Uppsala University in cooperation with the Nobel Museum, Stockholm.

You may like to look at the conference program, even if you can’t pop over to Sweden for a couple of days. It’s interesting to see the level of interest in Jane Addams (also John Dewey and WIlliam James) here in Sweden. In many other places in Europe, I’ve seen more interest in the more analytical approach represented by Charles Sanders Peirce (e.g., Kaiserlslautern, Germany) or the language focus represented by Richard Rorty (Cluj-Napoca, Romania), among those working in pragmatism.

by

Searching for trolls in Skurugata

It is generally understood that Trolls, when their territory is encroached upon by mankind, withdraw to some more secluded place. So when Eksjo was built, those that dwelt in that vicinity moved to Skurugata, a defile between two high mountains whose perpendicular sides rise so near to each other as to leave the bottom in continual semi-darkness and gloom (Hofberg, 1890).

It’s also generally understood that humans venture into the lair of trolls at their peril, and wise ones know not to walk defenseless into bottomlands of “continual semi-darkness and gloom.” But we knew of the troll ways and were not about to follow the path that the hunter Pelle Katt did in Hofberg’s fairy tale.

A Swedish friend asked why we were going to Småland, as if searching for relatives were the only thing to do there. We’ve learned there is much more, including visiting 12th century Romanesque churches and meeting local people over coffee afterwards, exploring lush forests with gorgeous lakes, taking walks in well-designed parklands, looking at quaint, red wooden farmhouses, and walking through villages with winding, cobblestone streets. But we were intrigued by the descriptions of Skurugata, which seemed of a different order of things.

Skurugata is about 13 km NE of Eksjö. To get there, we drove past lovely little farms with red houses and barns, cows, and piles of logs from the abundant woods.

The walk to Skurugata itself started off simply enough, a winding path through the woods, with moss-covered rocks and ferns. But it soon descended into a narrow ravine, with straight granite sides. At times, there was little more than 20 feet separating the sides, which rose to 50 feet and more. The walking was a bit tricky, since the rocks were moss-covered and slick from rain. There was also some climbing and descending that benefitted from the use of hands.

It was easy to imagine getting a foot caught in a crevice or losing one’s balance on an unstable stone. But the most dangerous part was neither the trolls nor the rocks, but the sheer beauty that made it hard to focus on walking carefully. The camera was shock-proof, but not my head.

Hofberg’s tale made me more sympathetic to trolls than I’d been before. Being forced out of one’s home is never good, even if it’s to a place as beautiful as Skurugata. He relates that every year a whole battalion of Småland grenadiers would march through Skurugata, beating drums and blowing horns, and occasionally firing volleys. Who knows how the poor trolls suffered through that! And Pelle Katt was no saint either.

We tried not to add to the troll’s’ misery, although we did intrude on what seems like a sacred space and took pictures that only hint at its beauty.

[Double-click on any photo to enlarge it.]

References

Hofberg, Herman (1890).  Swedish fairy tales. Chicago: Belford-Clarke.

by

A view on learning in Go:

My meetings here at Göteborg University have been held in the School of Pedagogy, which sits in three buildings, labeled, fittingly for an education school, as A-B-C.

But someone showed some imagination, and managed to start my brain spinning, by giving each hus a more lyrical name. I know the dictionary definitions, but I still can’t quite pull these names into a unified whole. Perhaps a Swedish colleague can help?

Hus A, the largest, is named Utsikten, which means “view.” That’s very appropriate, as its windows look out on the beautiful canal with its trees and walkways. The building is trilobite shaped. Its curves mean that each window has a different view. I think of the label as suggesting that we need to look out at the world.

Hus B is named Åsikten. This can also be translated as “view,” but here, I think it means point of view, or opinion. It reminds us that when we examine the world, we all see different things.

Finally, Hus C is named insikten, meaning “insight.” So, we have a view, a point of view, and an insight. Is it saying that as we consider our own view, then that of others, as in Peirce’s community of inquiry, that we develop insight? Or, does it mean that learning involves looking both outward and inward, then recognizing the fallibility of all knowledge? Does insight here really mean reflection, as we find in the water of the canal?

Or, is all of this just playing with the root sikt, and the untranslateablity in order to drive English speakers crazy? I suspect the latter, as I see Göteborg becoming Go:teborg on street signs, and then just Go:. But regardless of the deeper meanings I’m missing, this is just one of the many charming things I’m finding everywhere we look in Go:.