Science

WTF Fun Fact 12560 – The First Fingerprint Conviction

by

In 1910, Clarence Hiller confronted an intruder in his home, tackling him as both men fell down the stairs. Hiller was then shot, and the suspect ran away.

Paroled 6 weeks prior, Thomas Jennings was convicted of the crime. He was stopped by police when they saw he was wearing a bloody coat. But that wasn’t what got him convicted.

While investigating the scene of the break-in, police noticed that the intruder had grabbed a freshly-painted railing while boosting himself into the Hiller family’s window. They cut off the piece of the railing as evidence and presented it in court, comparing it to Jennings’ fingerprint.

Criminal justice scholars have proved that the way we use fingerprint evidence is not always in the best interests of justice, nor are fingerprints always accurately interpreted. In fact, our fingerprints even change over the course of our lifetimes, so an old fingerprint may rule out an actual criminal caught decades later.

But in 1910, this type of evidence was a first for a criminal case and the jury needed to be convinced that each person’s fingerprints are unique. Unfortunately for Jennings, that proof came from his defense attorney.

W.G Anderson rightly questioned the use of such poorly-understood evidence to convict a person, but it was his own fingerprint that would convince the jury of his client’s guilt.

Anderson challenged the forensic experts to lift his fingerprint from a piece of paper. They did. But his big plan was to solicit fingerprints from the general public to show just how shoddy the science of fingerprinting was. Alas, we do all have unique fingerprints and while there are often problems in our interpretations, this little experiment did nothing but convince the jury that fingerprint evidence was solid.

Of all the fingerprints collected, none looked like Anderson’s. The jury voted unanimously to convict Jennings, who was sentenced to hang.

In their coverage, The Decatur Herald noted that “the murderer of Hiller wrote his signature when he rested his hand upon the freshly painted railing at the Hiller home.” –  WTF fun fact

Source: “The First Criminal Trial That Used Fingerprints as Evidence” — Smithsonian Magazine

WTF Fun Fact 12556 – Halley’s Anti-Comet Pill

by

Where there’s fear, there are people willing to take advantage of it for their own gain.

Hundreds of years ago, comets could be a terrifying phenomenon. It looked like the sky was falling, so it’s not surprising that people have long interpreted them as harbingers of doom.

1910 was the first year that people really knew to expect the comet and could convey that to a larger global population. There were still people who remembered seeing it in 1834.

But we still didn’t entirely understand the nature of comets, so people were more susceptible to rumors about their dangers. While they’re all false, some researchers and commentators were happy to propagate rumors that Halley’s Comet had a tail made of a toxic substance that would contaminate the earth.

It was visible to the naked eye beginning on April 15th disappearing on July 5th. But some people weren’t excited to catch a glimpse because they thought it would bring about the end of the world.

The warning from a handful of scientists was rooted in real concerns. It was a close pass, and a previous comet (named Morehouse) had just been studied closely, and scientists found the fail emitted a toxic gas called cyanogen. But that’s no reason to blow it up into a rumor that a high-speed comet full of poison was headed straight for earth.

Famous scientists were asked to debunk the rumor but had a hard time admitting it was entirely impossible (which people needed to hear in order to chill out). Of course, the press coverage of cherry-picked remarks only made the story bigger and the fear worse.

Reactions ranged from hysteria to people selling all of their possessions to others drinking themselves to death in preparation for the end of the world. Some people caulked their windows and did their best to seal every hole in their homes to prevent the entrance of the supposed toxic gas.

In the panic, some charlatans decided to sell an easy cure in the form of a pill. Of course, it was a sugar pill and had no medicinal value, but they failed to mention that part. There was also an anti-Halley’s comet elixir. It’s unclear how much money people make from these quack remedies for problems that didn’t exist but clearly enough to pay for advertising space.

In the end, Halley’s comet passed without incident – and it was barely visible in the night sky. –WTF fun fact

Source: “Halley’s Comet, Covid-19, and the history of ‘miracle’ anti-comet remedies” — Discover Magazine

WTF Fun Fact 12448 – Killer Vending Machines

by

In the United States, your chances of dying from a shark attack are roughly1 in 250 million, statistically speaking. In contrast, your risk of dying from a vending machine-related incident is approximately1 in 112 million. So a vending machine is nearly twice as lethal as a shark.

No, it’s not because the snacks you find in vending machines are high-calorie pseudo-food. We mean vending machines themselves can kill. Of course, your chance of encountering either may have gone down during the pandemic, but statistically speaking, you’re more likely to be killed by a vending machine than a great, big, toothy, man-eating shark.

Shark attacks make the news. Sharks seem dangerous. We’re afraid of sharks. They’ve made movies about how scary sharks are. They had to dedicate a whole week to sharks to show off both their deadliness and majesty. You just can’t say the same thing about vending machines. So sharks live in our imagination as something deadly.

Vending machines, on the other hand, are our friends. If the machines take over, we want them to be the ones that dispense snacks, right?

Ok, this isn’t really about ways you’re likely to die. But think about it – don’t we engage in this reasoning quite a lot? We love it. We throw it around all the time. “I can do X because Y is more dangerous.” That’s actually some deeply faulted reasoning since it ignored just HOW deadly X is (which, in this case, is vending machines).

Vending machines aren’t deadly at all. But they sure sound that way when you compare them to sharks.

And sharks? They get our attention as something deadly, even though, statistically, they aren’t. Especially if you live in, say, Indiana.

Now, we’re not going to insult you by spelling out the obvious social implications here, but let’s just say that next time you want to throw around statistics to prove a point, you might want to make sure they’re helpful. –WTF fun facts

Source: “How Are Sharks Less Dangerous than Vending Machines? An Exercise in Conditional Risk” — Freakonomics

WTF Fun Fact 12443 – Immortal Billionaires

by

You know what they say about money – “You can’t take it with you.” That saying is supposed to remind us to live our lives and discourage us from hoarding money since it won’t do any good after death.

But what if you have a fortune and you really can’t bear to think of the world without you? Well, if you’re a tech billionaire, you invest some of that money in your immortality.

There are multiple projects underway to study human immortality and extend life led by the likes of Jeff Bezos, Google co-founders Sergey Brin and Larry Page, PayPal co-founder Peter Thiel, and Russian Internet tycoon Dmitry Itskov. Now, not all of them want to live forever, exactly, but they do think that extending life by a decade or so sounds just about right.

We suppose being able to afford everything in life tends to make a person enjoy it more and want to keep the party going. But is it ethical? Will these billionaires share this tech with the rest of us, or will it only be for the rich?

Can the planet really handle a bunch of immortal billionaires? – WTF fun facts

Source: “The Men Who Want to Live Forever” — The New York Times

WTF Fact 12428 – A Goldfish Can Hold a Grudge

by

Sorry, Ted Lasso, but “be a goldfish” might not be the best advice for those ready to hold a grudge. Despite the widespread belief that a goldfish has a memory of just a few seconds, it’s simply false.

We’re not sure who made it up or when, but the first sign that it’s a made-up “fact” is that the information changes based on where you are in the world. Some say the goldfish has a 10-second memory, while others say it’s just 3 seconds. Regardless, none of this has ever been proven by science.

However, scientists have studied goldfish and tried to ascertain how long their memories might be. And you might be alarmed to know that these ubiquitous fish retain can memories for days, months, and even years. There are 60 years worth of research to back up those facts.

Of course, we can’t know exactly what goldfish think, but it’s not all that challenging to test the memory of just about any creatures through experimentation.

Culum Brown is an expert in fish cognition at Macquarie University in Australia. He told Live Science: “We’ve known about the reasonably good memories of goldfish since the ’50s and ’60s. Despite what everybody thinks, they’re actually really intelligent.”

Brown believes that one of the reasons we are so ready to believe that goldfish have almost no memory span is the way we treat them. If a fish had a 3-second memory, that boring glass bowl wouldn’t be cruel. And assuming they’re unintelligent allows us to rest easy believing our scaly pets don’t need any stimulation. Unfortunately, that’s just not true.

According to Brown, goldfish are often used in fish cognition and memory experiments. Research has shown that goldfish can remember where their food comes from, how to manipulate situations to get rewards, and even make their way through mazes.

Maybe it’s time to upgrade that fishbowl. –WTF Fun Facts

Source: “Do goldfish really have a 3-second memory?” — LiveScience

WTF Fun Fact 12403 – Your Brain on Math

by

Mathematics is a strange beast. It uses our language, but it isn’t quite the same – our brains hear it entirely differently from everyday speech. For example: when we hear a sentence like “cats like warm milk,” our brains process that information mainly in the left hemisphere. Something like “eight plus one is nine,” though, will fire neurons in both.

A study published in the journal Current Biology took a closer look at how our brains process mathematics (as opposed to regular speech). While our brains process ordinary language in the left hemisphere, math triggers neurons in both hemispheres.

The neuroscientists from the Universities of Tübingen and Bonn said in an interview: “We found that different neurons fired during additions than during subtractions.”

Esther Kutter, a doctoral candidate involved with the research group, confirmed: “Even when we replaced the mathematical symbols with words, the effect remained the same. For example, when subjects were asked to calculate ‘5 and 3’, their addition neurons sprang back into action; whereas for ‘7 less 4,’ their subtraction neurons did.”

The lead author of the study Prof. Dr. Dr. Florian Mormann of the Department of Epileptology at University Hospital Bonn, remarked on the study’s significance: “This study marks an important step towards a better understanding of one of our most important symbolic abilities, namely calculating with numbers.” – WTF Fun Facts

Source: Math Neurons” Fire Differently Depending On Whether You Add Or Subtract — IFL Science

WTF Fun Fact 12402 – Self-Cleaning Fish

by

An experiment published in the journalPLOS Biology showed for the second time that fish could recognize themselves in the mirror. Scientists injected the cleaner fish (Labroides dimidiatus) with a substance that “tattooed” them with brown marks on their scales. When they spotted their reflections, they were triggered to try and scrape off the marks.

This goes far beyond simple mirror recognition. Fish mirror self-recognition (MSR) would give the creatures a characteristic only shared by two other creatures – humans and chimpanzees.

Previous research drew the same conclusions but was not conclusive since the sample size was small and not all of the fish exhibited the behavior. But the recent replication study remedied those inadequacies and added more evidence to the theory that fish are self-aware.

Not everyone is convinced, though. Some researchers are still skeptical that the behavior was not the result of self-awareness but rather a physical reaction to being tattooed by the scientists.

When interviewed by IFL Science, the lead researcher, Professor Masanori Kohda of Osaka City University, said, “During the long 50-year history of mirror tests of animals, this study is the first test that uses the mark to which the subject animals pay attention. Hence, this fish shows the highest passing rate for mark-test, exceeding that of chimpanzees, dolphins, and elephants.” –WTF Fun Facts

Source: Fish Cleaning Themselves In A Mirror May Have Just Demonstrated Self-Awareness — IFL Science

WTF Fun Fact 12397 – Beer Mustache

by

Men with mustaches and beards are losing an estimated 162,719 pints of beer in their facial hair every year, according to Guinness.

The brewery commissioned a scientific study and researchers found that quite a bit of beer was being wasted each year in the UK (and presumably around the world) – about £4.58 a year, they estimate. It has been humorously titled the “mustache tax.”

There are an estimated 92,370 drinkers with facial hair in the UK. Those men drink an average of 180 pints each a year. That makes the total cost of wasted suds around £423,070, or around $572K in US dollars.

According to The Guardian, “As the data was based on the average mustache surface area. Scientists were able to work out the amount of wastage depending on size, shape, and density.” – WTF Fun Facts

Source: Hairy topers ‘wasting Guinness’? — The Guardian