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Where Are They Now? Diseases That Killed You in Oregon Trail

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You have died of dysentery.

These are five words familiar to anyone who has attempted to caulk a wagon and ford rivers en route to the Willamette Valley. Oregon Trail not only taught generations of kids about Western migration in 19th-century America, it also familiarized them with various strange-sounding diseases. Let’s catch up with some of those diseases and find out if they're just as nasty today.

1. Everyone Has Cholera

Then: The number one killer of the actual Oregon Trail, cholera is an infection of the intestines caused by ingesting the bacteria Vibrio cholerae. Spread through contaminated food or water, cholera released an enterotoxin that effectively flooded the intestines with excess water. This led to continual watery diarrhea, causing severe dehydration and often death. The worst outbreaks occurred on the Oregon Trail in 1849, 1850 and 1852. The only available treatment in the game was a medicine known as laudanum—understood today to be pure opium.

Now: According to the Centers for Disease Control, cholera remains a global pandemic. Though there is still no vaccine for the disease (in the U.S.), it can be treated with a regimen of fluids and electrolytes, as well as antibiotics. The best defense remains stringent sanitation regulations, a luxury afforded primarily to industrialized countries. The World Health Organization has recorded recent outbreaks in Mexico (November 2013), Sierra Leone (August 2012), Democratic Republic of Congo (July 2011), Haiti (November 2010, October 2010), Pakistan (October 2010) and a severe outbreak in Zimbabwe (June 2009, March 2009, February 2009, January 2009, December 2008).

2. Joseph Has Diphtheria

Then: Caused by Corynebacterium diphtheriae, diphtheria is an airborne bacterial disease. It usually showed up first in the nose and throat, but could also surface as skin lesions. A gray, fibrous material would grow over airways, causing difficulty breathing and sometimes uncontrollable drooling, as well as a deep cough and chills. Diphtheria was most common on the Trail during the winter months.

Now: Routine childhood immunizations have nearly erased diphtheria in the U.S. According to the U.S. National Library of Medicine, there are less than five cases here a year. Though it is still a problem in crowded nations with poor hygiene, diphtheria is now rarely fatal.

3. You Have Dysentery

Then: Dysentery, a.k.a. shigellosis, was not as widespread on the trails as its peer cholera. During the 19th century, dysentery was a bigger problem on the Civil War battlefields. Like cholera, dysentery spread via contaminated water and food, thriving in hot and humid weather. Unlike cholera, dysentery lived in the colon and caused bloody, loose excrement. The rise of dysentery in the 1800s was partially due to infected warm cow’s milk, an ideal incubator for shigellosis.

Now: Dysentery is still a major threat to the developing world. Not only is there no effective vaccine, recent strains are increasingly resistant to antibiotics—the only proven line of defense in tandem with fluids. 

4. Sally Has Measles

Then: Evolved from the rinderpest virus, the highly contagious measles ravaged the United States in the 19th century. It was not measles, but complications like bronchitis and pneumonia, that made it life threatening. Measles was spread through contaminated droplets—coughing, sneezing, wiping one’s nose and then touching anything. It caused nasty rashes, fever, and conjunctivitis.

Now: A vaccine was discovered in the mid-20th century, virtually eradicating measles from the developed world. It is now part of the trifecta inoculation MMR (Measles-Mumps-Rubella) most American children receive in infancy and again at age 6. Though relatively contained, measles is still endemic: In 2009, there was an outbreak in Johannesburg and other parts of South Africa. New Zealand saw a small spike in August 2011, with nearly 100 cases popping up in Auckland. And as of May 16, 2014, there have been 15 outbreaks in the U.S., resulting in 216 cases of measles in 18 states, "the highest number of cases reported in the United States during this time period in 18 years," Dr. Greg Wallace, head of measles activities at the Centers for Disease Control and Prevention, told CNN. (Notably, that number doesn't include the latest cases from an outbreak in Ohio.) Most of the people who got measles were unvaccinated and got the disease while traveling; measles then spread among unvaccinated members of the community when the travelers returned home.

5. Mary Has Died of Typhoid Fever

Then: Unfamiliar with the virtues of boiling water first, Oregon Trail pioneers contracted typhoid like many other diseases—from contaminated water. Caused by Salmonella Typhi, typhoid was spread when an infected person “sheds” the bacteria. Sparing you the gross details, let’s just say the bacteria lived in a person’s blood and intestines. The major symptom was high fever, followed by weakness and loss of appetite. In the warmer months, typhoid was a real killer.

Now: Still a killer, though not in the Western world. The CDC says it’s preventable with good sanitation and antibiotics, but even Westerners are not immune when traveling in developing countries. The CDC strongly recommends anyone planning travel to a "non-industrialized" nation get vaccinated—and avoid any tap water or food cooked in unclean water.

This story originally appeared in 2011.

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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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