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Wikimedia Commons

Oscar Wilde

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Wikimedia Commons

For years, every time we so much as touch a toe out of state, I’ve put cemeteries on our travel itinerary. From garden-like expanses to overgrown boot hills, whether they’re the final resting places of the well-known but not that important or the important but not that well-known, I love them all. After realizing that there are a lot of taphophiles (cemetery and/or tombstone enthusiasts) out there, I’m finally putting my archive of interesting tombstones to good use.

Just because he died 114 years ago doesn’t mean Oscar Wilde’s proclivity for raising eyebrows has diminished.

Eight years after the Irish writer died of cerebral meningitis (another controversy, as some say it was brought on by syphilis), sculptor Jacob Epstein was chosen to carve a monument-esque tombstone out of a 20-ton block of Hopton Wood stone. The figure on the tomb, described as a “demonic flying angel,” displayed an extra large set of genitalia, perhaps to represent the abundant personality of the permanent resident underneath the stone. Or his extra large libido. Either way, the keeper of Père Lachaise Cemetery declared the statue indecent due to the exaggerated size of the stone's stones. The Prefect of the Seine demanded that the angel either be castrated or given a modesty fig leaf, and for a time, the whole thing was concealed by a tarp. The angel was eventually given a bronze, butterfly-shaped codpiece—because that’s certainly not attention-grabbing—which lasted until Aleister Crowley (yes, the Aleister Crowley) snatched the offending butterfly off to protest censorship of the arts:

I detached the butterfly and put it under my waistcoat. The gatekeeper did not notice how portly I had become. When I reached London, I put on evening dress and affixed the butterfly to my own person in the same way as previously to the statue, in the interests of modesty, and then marched into the Cafe Royal, to the delight of the assembled multitude. Epstein himself happened to be there and it was a glorious evening. By the time he had understood my motives, that I was honestly indignant at the outrage to him and determined to uphold the privileges of the artists.

Legend has it that two English ladies were strolling cemetery grounds decades later—1961, to be exact—when they happened upon the brazen tombstone. Offended, they grabbed large rocks and pounded away until the statue was sexless. The severed pieces, it’s said, ended up serving as a paperweight in the Père Lachaise conservation office.

And if a pair of brass tombstone testicles isn’t enough taboo for you, there’s more. For decades, women (and men) who have dropped by Père Lachaise to pay Oscar a visit have covered the stone monument in thousands of lipstick kisses. Though it may seem like a fitting tribute, the grease from the lip prints of so many adoring fans began to erode the stonework. In 2011, much to the chagrin of many fans, a glass partition was built to keep the kisses at bay. Here's what it looked like when I was there in 2002:

Not only is this long before the glass wall was erected, it was also slightly before digital cameras were ubiquitous. I’m hoping the latter explains why I was satisfied with taking such a crappy picture from so far away. At the time, I remember thinking that the kisses were actually part of the tombstone design. 

This is what Wilde's plot looks like today (from a different angle, of course).

Read all the entries in our Grave Sightings series here.

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iStock // Ekaterina Minaeva
technology
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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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iStock
Animals
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Scientists Think They Know How Whales Got So Big
May 24, 2017
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iStock

It can be difficult to understand how enormous the blue whale—the largest animal to ever exist—really is. The mammal can measure up to 105 feet long, have a tongue that can weigh as much as an elephant, and have a massive, golf cart–sized heart powering a 200-ton frame. But while the blue whale might currently be the Andre the Giant of the sea, it wasn’t always so imposing.

For the majority of the 30 million years that baleen whales (the blue whale is one) have occupied the Earth, the mammals usually topped off at roughly 30 feet in length. It wasn’t until about 3 million years ago that the clade of whales experienced an evolutionary growth spurt, tripling in size. And scientists haven’t had any concrete idea why, Wired reports.

A study published in the journal Proceedings of the Royal Society B might help change that. Researchers examined fossil records and studied phylogenetic models (evolutionary relationships) among baleen whales, and found some evidence that climate change may have been the catalyst for turning the large animals into behemoths.

As the ice ages wore on and oceans were receiving nutrient-rich runoff, the whales encountered an increasing number of krill—the small, shrimp-like creatures that provided a food source—resulting from upwelling waters. The more they ate, the more they grew, and their bodies adapted over time. Their mouths grew larger and their fat stores increased, helping them to fuel longer migrations to additional food-enriched areas. Today blue whales eat up to four tons of krill every day.

If climate change set the ancestors of the blue whale on the path to its enormous size today, the study invites the question of what it might do to them in the future. Changes in ocean currents or temperature could alter the amount of available nutrients to whales, cutting off their food supply. With demand for whale oil in the 1900s having already dented their numbers, scientists are hoping that further shifts in their oceanic ecosystem won’t relegate them to history.

[h/t Wired]

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