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10 Tragic Athlete Deaths

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[Image courtesy of KentuckyDerby.com]

Saturday's Kentucky Derby was marred by tragedy, as runner-up Eight Belles had to be euthanized on the track after breaking both front ankles. She was not the first athlete to be struck down on the playing field. Here are ten other tragic athlete deaths.

1. Bill Masterton, Hockey

masterson.jpgFour minutes into a 1968 hockey game between the Minnesota North Stars and the Oakland Seals, the North Stars' center, Bill Masterton, fell backward and hit his head on the ice. He died 30 hours later from "massive brain injury," becoming the first player to be killed during a game in the history of the NHL.

2. Vladimir Smirnov, Fencing

Vladimir Smirnov and Matthias Behr lunged simultaneously during a championship fencing match in Rome in 1982. As Behr's foil struck Smirnov's chest protector, the blade snapped at the tip, and the jagged end cut through Smirnov's wire-mesh face protector. The blade pierced Smirnov's brain and severed an artery; the 28-year-old died 10 days later.

3. Sergei Chalibashvili, Diving

Competitors at the World University Games in 1983 knew that Sergei Chalibashvili's dive could end in tragedy. The 21-year-old Soviet was attempting a 3-1/2 reverse somersault in tuck position, and he'd struggled with the dive in practice. Chalibashvili's head struck the ten-meter-high platform, resulting in multiple skull fractures; he died of heart failure. His dive became known as the Dive of Death.

4. Lane Frost, Bull Riding

lane-frost.jpgLane Frost, the 1987 world champion bull rider, was thrown from a bull at the 1989 Cheyenne Frontier Days rodeo. The 25-year-old was fine after the fall but, as he walked away, the bull charged him from behind, breaking Frost's ribs and puncturing a major blood vessel. Frost died from the injuries. The movie 8 Seconds, directed by John G. Avildsen, depicts Frost's life and death.

5. Fabio Casartelli, Cycling

The descent from Col du Portet d'Aspet, in the Tour de France, is lined with concrete blocks that prevent cars from going over the edge of the cliff. In 1995, Fabio Casartelli, a 24-year-old Italian cyclist, fell off his bike on a turn, his head striking one of the concrete blocks. He suffered three heart attacks in a helicopter on the way to the hospital, and was pronounced dead not long after.

6. Raman Lamba, Cricket

In 1998, a 38-year-old Indian cricketer, Raman Lamba, was hit by a ball during a cricket tournament. The blow to the head caused severe brain injuries that three days later resulted in his death.

7. Owen Hart, Professional Wrestling

owen-hart-2.jpgOwen Hart, a Canadian professional wrestler, was to be lowered into the ring during a WWF match in 1999. Unfortunately, the cable was not properly hooked onto Hart. The 33-year-old fell to his death in front of more than 16,000 people. The match was being shown as part of a pay-per-view package called "Over the Edge." After Hart's death, the event continued.

8. Rosbin Yuman & Lester Marrioquin, Soccer

In 2001, a storm hit a stadium in Chiquimulilla, Guatemala, during a soccer game. While most fans left, officials made the poor decision to continue the game. Lightning struck one of the metal guard rails surrounding the field, injuring more than 25 people and killing two of the players, Rosbin Yuman, 16, and Lester Marrioquin, 24, instantly.

9. Kim Hyung-Chil, Equestrian

KimHyung-Chil.jpgAlthough there were wet conditions at the 2006 Asian Games, organizers do not believe that slippery conditions caused the accident that killed Kim Hyung-Chil. The 47-year-old South Korean rider's horse, Bundaberg Black, apparently mistimed its jump over a fence and fell, crushing Hyung-Chil.

10. Lauren Chang, Cheerleading

At the Minuteman Cheerleading Championships this year (April 2008), a 20-year-old on an elite cheer squad died from collapsed lungs. Apparently, Lauren Chang was accidentally kicked in the chest by a tumbler, though witnesses weren't sure exactly what went wrong.

Previously on mental_floss...

Jockey Frank Hayes, baseball player Ray Chapman, and race car driver J.G. Parry-Thomas are discussed in Stacy Conradt's December 2007 post on Eight (and a half) People Whose Jobs Actually Killed Them.

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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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8 Common Dog Behaviors, Decoded
May 25, 2017
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Dogs are a lot more complicated than we give them credit for. As a result, sometimes things get lost in translation. We’ve yet to invent a dog-to-English translator, but there are certain behaviors you can learn to read in order to better understand what your dog is trying to tell you. The more tuned-in you are to your dog’s emotions, the better you’ll be able to respond—whether that means giving her some space or welcoming a wet, slobbery kiss. 

1. What you’ll see: Your dog is standing with his legs and body relaxed and tail low. His ears are up, but not pointed forward. His mouth is slightly open, he’s panting lightly, and his tongue is loose. His eyes? Soft or maybe slightly squinty from getting his smile on.

What it means: “Hey there, friend!” Your pup is in a calm, relaxed state. He’s open to mingling, which means you can feel comfortable letting friends say hi.

2. What you’ll see: Your dog is standing with her body leaning forward. Her ears are erect and angled forward—or have at least perked up if they’re floppy—and her mouth is closed. Her tail might be sticking out horizontally or sticking straight up and wagging slightly.

What it means: “Hark! Who goes there?!” Something caught your pup’s attention and now she’s on high alert, trying to discern whether or not the person, animal, or situation is a threat. She’ll likely stay on guard until she feels safe or becomes distracted.

3. What you’ll see: Your dog is standing, leaning slightly forward. His body and legs are tense, and his hackles—those hairs along his back and neck—are raised. His tail is stiff and twitching, not swooping playfully. His mouth is open, teeth are exposed, and he may be snarling, snapping, or barking excessively.

What it means: “Don’t mess with me!” This dog is asserting his social dominance and letting others know that he might attack if they don’t defer accordingly. A dog in this stance could be either offensively aggressive or defensively aggressive. If you encounter a dog in this state, play it safe and back away slowly without making eye contact.

4. What you’ll see: As another dog approaches, your dog lies down on his back with his tail tucked in between his legs. His paws are tucked in too, his ears are flat, and he isn’t making direct eye contact with the other dog standing over him.

What it means: “I come in peace!” Your pooch is displaying signs of submission to a more dominant dog, conveying total surrender to avoid physical confrontation. Other, less obvious, signs of submission include ears that are flattened back against the head, an avoidance of eye contact, a tongue flick, and bared teeth. Yup—a dog might bare his teeth while still being submissive, but they’ll likely be clenched together, the lips opened horizontally rather than curled up to show the front canines. A submissive dog will also slink backward or inward rather than forward, which would indicate more aggressive behavior.

5. What you’ll see: Your dog is crouching with her back hunched, tail tucked, and the corner of her mouth pulled back with lips slightly curled. Her shoulders, or hackles, are raised and her ears are flattened. She’s avoiding eye contact.

What it means: “I’m scared, but will fight you if I have to.” This dog’s fight or flight instincts have been activated. It’s best to keep your distance from a dog in this emotional state because she could attack if she feels cornered.

6. What you’ll see: You’re staring at your dog, holding eye contact. Your dog looks away from you, tentatively looks back, then looks away again. After some time, he licks his chops and yawns.

What it means: “I don’t know what’s going on and it’s weirding me out.” Your dog doesn’t know what to make of the situation, but rather than nipping or barking, he’ll stick to behaviors he knows are OK, like yawning, licking his chops, or shaking as if he’s wet. You’ll want to intervene by removing whatever it is causing him discomfort—such as an overly grabby child—and giving him some space to relax.

7. What you’ll see: Your dog has her front paws bent and lowered onto the ground with her rear in the air. Her body is relaxed, loose, and wiggly, and her tail is up and wagging from side to side. She might also let out a high-pitched or impatient bark.

What it means: “What’s the hold up? Let’s play!” This classic stance, known to dog trainers and behaviorists as “the play bow,” is a sign she’s ready to let the good times roll. Get ready for a round of fetch or tug of war, or for a good long outing at the dog park.

8. What you’ll see: You’ve just gotten home from work and your dog rushes over. He can’t stop wiggling his backside, and he may even lower himself into a giant stretch, like he’s doing yoga.

What it means: “OhmygoshImsohappytoseeyou I love you so much you’re my best friend foreverandeverandever!!!!” This one’s easy: Your pup is overjoyed his BFF is back. That big stretch is something dogs don’t pull out for just anyone; they save that for the people they truly love. Show him you feel the same way with a good belly rub and a handful of his favorite treats.

The best way to say “I love you” in dog? A monthly subscription to BarkBox. Your favorite pup will get a package filled with treats, toys, and other good stuff (and in return, you’ll probably get lots of sloppy kisses). Visit BarkBox to learn more.

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