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3 Renaissance Rascals Exposed!

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secret lives of artists.pngThis week we're lucky to have Elizabeth Lunday, author of Secret Lives of Great Artists: What Your Teachers Never Told You about Master Painters and Sculptors guest blogging with us. Every day this week, she'll be spilling the dirt on the artists you thought you knew. We'll let her take it from here:
The Renaissance is known as a time when reason triumphed over superstition and culture over chaos. Maybe—but Renaissance artists didn't always live up to that ethos. Here are three examples of great Renaissance masters at their most unreasonable:

1. Why Someone Punched Michelangelo in the Face

b.art.pngYoung Michelangelo was a genius—and he knew it. He absolutely delighted in mocking the artistic skills of his peers and would pick on his fellow students mercilessly for the slightest error in perspective or distortion of anatomy. But men in Renaissance Italy weren't known for their restraint. As the artist Pietro Torrigiano tells the story: "One day he provoked me so much that I lost my temper more than usual, and, clenching my fist, gave him such a punch on the nose that

I felt bone and cartilage crush like a biscuit. That fellow will carry my signature till he dies."

And so he did. Michelangelo's nose was squished and flattened, with a distinct hump in the middle. There is no sign however that it made him any less of a jerk.

2. Don't Push the Guy Who Could Immortalize You

b.art2.pngLeonardo da Vinci had a well-deserved reputation for his aversion to work. Everyone in Italy knew if you gave the great artist a commission, you were lucky to get your artwork several years later, if at all. He pondered, he puttered, he futzed around and he never met a deadline. In fact, his slack approach to The Last Supper is legendary. Fed up with the artist's endless procrastination (and the fact that he had made the monastery's dining hall completely unusable), the Prior of Santa Maria delle Grazie finally decided to complain to the Duke of Milan. When called to defend his actions, a calm Leonardo explained that he was just trying to find a face evil enough to represent Judas, the betrayer of Christ. However, Leonardo added, if he couldn't find the perfect model he could "always use the head of the tactless and impatient Prior." The threat quickly put a stop to the complaints.

3. Botticelli's All-You-Can-Eat Feasts

b.art3.pngThe family name of early master Sandro Botticelli, creator of the sublime Birth of Venus (ca. 1486), is actually a nickname that means "little bottle." As for who gave Sandro his name, that credit goes to Renaissance banking genius and Florentine ruler Lorenzo de' Medici who decided not only to exercise his poetic gifts but also get in a dig at the artist. Apparently, Botticelli had a bad reputation for showing up at the Medici's house every time the doors opened and eating until they kicked him out. Lorenzo wrote a witty rhyme punning on his pet artist's name, concluding "He arrives a little bottle [botticelli] and leaves a bottle full."

Come back tomorrow for more great artist stories. And be sure to check out Elizabeth's wonderful new book Secret Lives of Great Artists: What Your Teachers Never Told You about Master Painters and Sculptors.

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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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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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