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AJ and the Amish

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During my year of living biblically, I made several pilgrimages across America. I wanted to embed myself in various communities that live the Bible literally in their own way "“ from Hasidic Jews to evangelical Christians. I also invited religious people to my house. I think I'm the only person in American history to out-Bible talk a Jehovah's Witness. After about three hours, he looked at his watch and said, "I gotta go."

One of my first trips was to Amish country in Lancaster County. My wife and I drove down from New York (I'm proud to say that I have absolutely no urge to make a double entendre when we passed Intercourse, Pennsylvania, which I see as a great moral victory).
To be biblically honest, I was a little leery of going to Amish country - the Amish have been a go-to religious punchline for so long, sort of the Carrot Top or Jazzercise of American spirituality, and I didn't want to fall into that trap. I didn't want to seem like I was mocking them.

In the end, I'm glad I went. I learned a huge amount and got to experience the beauty of the Amish culture. Plus, I got to hear an Amish joke told by an actual Amish person, which was a pleasant surprise.

Here are five Amish facts I learned during my year:

  • If you browse websites about the Amish, you'll often see a lot of pictures of the backs of their heads. The Amish follow strictly the second commandment "“ you shall not make graven images. And they are also concerned with appearing vain. So they don't like their faces photographed. They compromise by showing the back of their heads.
  • Amish have beards in accordance with Leviticus, which forbids the shaving of the corners of your beard. But they do shave their moustaches. The moustache was thought to have military associations by the early Amish, who came over from Switzerland in the 18th century.
  • The Amish do tell Amish jokes. My wife and I stayed at an Amish man's house, and he told us one. (Note: Please lower your expectations. The Amish are working with some pretty tight constraints here). Okay, here goes:

The joke and more Amish facts after the jump...

Q: What happened when the Mennonite man married the Amish woman?
A: She drove him buggy."

  • The Amish perform a foot-washing ritual, in accordance with the New Testament's John 13:5, which says "If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another's feet. For I have given you an example"¦"

  • Amish sports are the quietest sports in the world. Here's what my wife and I saw as we were leaving Amish country.

"I spot a cluster of about 30 buggies. We pull over to see what's happening. We have stumbled onto an Amish baseball game. Many discourage competitive sports. But here are 18 Amish teenage boys, their sleeves rolled up, their shirts and suspenders dark with sweat. Julie and I watch for a long time. These kids are good, but something is off about the game. I realize after a few minutes what it is: This is the quietest baseball game I've ever seen. No trash talk. No cheering from the parents in the stands. Near silence, except for the occasional crack of the bat. It is eerie and peaceful and beautiful."

PS Thanks for all the great comments on my first post. You make me commit the sin of pride!

>>Click here to purchase AJ's new book The Year of Living Bibilically: One Man's Humble Quest to Follow the Bible as Literally as Possible today.

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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Opening Ceremony
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These $425 Jeans Can Turn Into Jorts
May 19, 2017
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Opening Ceremony

Modular clothing used to consist of something simple, like a reversible jacket. Today, it’s a $425 pair of detachable jeans.

Apparel retailer Opening Ceremony recently debuted a pair of “2 in 1 Y/Project” trousers that look fairly peculiar. The legs are held to the crotch by a pair of loops, creating a disjointed C-3PO effect. Undo the loops and you can now remove the legs entirely, leaving a pair of jean shorts in their wake. The result goes from this:

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Opening Ceremony

To this:

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Opening Ceremony

The company also offers a slightly different cut with button tabs in black for $460. If these aren’t audacious enough for you, the Y/Project line includes jumpsuits with removable legs and garter-equipped jeans.

[h/t Mashable]

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