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Adventures in Pickling

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Cucumbers never grew well in the garden at my old home. But this year we broke ground for a garden in the backyard, unearthing flood plain soil that hadn't been cultivated in decades. Add my homemade compost and a sturdy trellis, and here comes an amazing crop of foot-long cucumbers!

My family loves cucumbers, but we couldn't eat -or even give away- this many. I brought a five-gallon bucket of cukes inside to make pickles. I considered buying pickling salt and spices individually to make my own brine, but thought I might be stuck with leftovers that wouldn't be used for anything else, and instead purchased a packet of dill pickling spices, good for one batch of pickles, and a jug of vinegar.

There are two basic methods for making pickles, with many variations on each. One is to ferment the pickles in salt brine for weeks, then seal in jars. You have to make sure the cukes stay under the brine, and you usually have to add vinegar later anyway. The other method is to use vinegar brine to can fresh cucumbers, which still contains a lot of salt, but it doesn't require a huge container and weeks of protecting the project from insects and curious children. After my first garden produced a few cucumbers in 1995, I made a small batch of pickles, and my favorite aunt gave me a huge crock for future pickling. The cucumbers didn't appear in later years, and we used the crock for an umbrella stand until I finally sold it. So my pickles are fresh-packed in a salt/vinegar/spice brine.

Should I pack pickles in thin slices or spears? With the recipe I used, it doesn't matter, as you pack the jars first with fresh cucumber, then fill each with brine. That gave me the opportunity to do both, so some jars were filled with spears while I made hamburger chips in others. Two types of slicing machines gave me chips that were way too thin, so I ended up cutting slices the old fashioned way.

While I was at it, a sliced up a few jars of banana peppers, since my family likes the pickled peppers that the local pizza parlor uses. I figured a nice dill brine would work for them as well.

As I began to slice up pickles and fill jars, I realized that I had been calculating the volume of my project all wrong. Experience tells me a five-gallon bucket of tomatoes will produce one soup pot of stewed tomatoes or salsa, and even less tomato sauce or juice, once the skins, seeds, and most of the water was removed from the fruit. But you don't remove anything from cucumbers, except a small slice off the blossom end (that part can be bitter). Time to wash more jars!

When I mixed up the packet of brine, it became clear that the manufacturer's idea of a "batch" of pickles was different from mine. I would need at least three more packets of spices. The grocery store only had one left, so I switched gears and bought a jar of pickling spices, equivalent to about six packets. It would not be the last jar of spices I bought. Yes, I should have invested in each spice individually, even though I would have had to hit every grocery store in town to get enough fresh dill at once. Hindsight is 20/20.

I brought two pots of brine to a boil, then filled the jars with brine. We were able to stretch the brine a bit by stuffing yet more cucumber pieces in the jars after the hot liquid softened them a little. Then I went around the top of the jars with a clean wet cloth, to make sure no stray dill seeds would interfere with the lids. The lids had been heated under a cover of boiling water, and then were placed on the jars with rings. The rings were put on just tight enough to keep the lid from falling off. The air from inside the jar must be able to vent to produce a proper seal.

The new large canner holds fourteen pints or ten quart jars. To accommodate one bucket of cucumbers, I had to use both sizes, which meant boiling many kettles of water to make sure all the jars were covered adequately. To keep jars under water during the canning process, you should have at least two inches of water over the tallest jar. The process of getting that much water to boil (we used every stove burner) took longer than any other part of the process.

Twenty minutes of constant boiling later, I removed the hot jars. The cooling jars from three canner loads took up all the counter space, which gave me the perfect excuse to order takeout for dinner. That one move probably wiped out my savings in pickles for the year.

But in this day and time, you don't can your own garden produce just to save money. The food itself is high quality from a lovingly-produced family garden, instead of a commercial farm thousands of miles away. You also have the satisfaction of knowing you were responsible for the end product. And while a jar of store-bought pickles would be too weird to give as a gift, home-canned pickles are a perfectly thoughtful gift.

Are the pickles any good? I don't know! Since they are fresh packed, the brine spices won't fully penetrate the fruit for a few weeks. The recipe recommended waiting a month before eating them. We had two jars with lids that failed to seal, so they went into the refrigerator as the first ones to be eaten. We are trying to wait the proper amount of time before we pass judgement.

I've gone through this process several times in the last few weeks. Believe me, many of these jars will be given away. We eat a lot of pickles, but there's no way we can consume this many in a year. Properly preserved pickles are supposed to last several years, but tend to taste best in the first year. And we will have another garden next summer!
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Photographs by Princess Cellania.

See also: A Dozen Pumpkins, Salsa Time! and Growing Tomatoes.

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
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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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iStock
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Here's How to Change Your Name on Facebook
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iStock

Whether you want to change your legal name, adopt a new nickname, or simply reinvent your online persona, it's helpful to know the process of resetting your name on Facebook. The social media site isn't a fan of fake accounts, and as a result changing your name is a little more complicated than updating your profile picture or relationship status. Luckily, Daily Dot laid out the steps.

Start by going to the blue bar at the top of the page in desktop view and clicking the down arrow to the far right. From here, go to Settings. This should take you to the General Account Settings page. Find your name as it appears on your profile and click the Edit link to the right of it. Now, you can input your preferred first and last name, and if you’d like, your middle name.

The steps are similar in Facebook mobile. To find Settings, tap the More option in the bottom right corner. Go to Account Settings, then General, then hit your name to change it.

Whatever you type should adhere to Facebook's guidelines, which prohibit symbols, numbers, unusual capitalization, and honorifics like Mr., Ms., and Dr. Before landing on a name, make sure you’re ready to commit to it: Facebook won’t let you update it again for 60 days. If you aren’t happy with these restrictions, adding a secondary name or a name pronunciation might better suit your needs. You can do this by going to the Details About You heading under the About page of your profile.

[h/t Daily Dot]

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