fun fact

WTF Fun Fact 13114 – The Eiffel Tower is Taller in Summer

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The Eiffel Tower is taller in summer (it also shrinks in the winter). The reason? Thermal expansion (and contraction).

How is the Eiffel Tower taller in summer?

At 330 meters high, you won’t be able to tell just by looking at it that the Eiffel Tower grows by 15 centimeters in the summer. At 132 years old, the Tower spent 42 glorious years as the world’s tallest building. And the structure wasn’t even meant to be permanent.

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The Eiffel tower is made of iron, puddled iron (or wrought iron) to be exact. And to be even more precise, it’s puddled iron from the Forges de Pompey near Nancy, France.

At the time, architect Gustave Eiffel had relied heavily on iron and had not worked with steel in any significant way in his architecture. Of course, steel does not change during temperature fluctuations, whereas iron does.

The growing and shrinking Tower

According to the structure’s tourism website (cited below):

“When temperatures rise, the Tower increases in size! This is a natural physical phenomenon called thermal expansion. Heat causes an increase in volume that makes the Eiffel Tower a few centimeters taller. This expansion also causes the Tower to tilt slightly away from the sun. The sun only hits one of the 4 sides of the Tower creating an imbalance with the other 3 sides, that remain stable, thus causing the Eiffel Tower to lean. In this way, the sun’s movement over the course of a clear day can cause the top of the Tower to move in a more or less circular curve measuring approximately 15 centimeters in diameter.”

You probably can’t see it in your photos, but you read that right – the Tower does lean slightly in the summer since the sun only hits one side directly, causing it to expand.

This expansion goes away when the sun isn’t strong.

Thermal contraction is a winter problem. During the cold months, the metal structure shrinks from its normal height.

You might think all this contracting and shrinking causes the iron to become weaker, but the Tower is so large that there’s no risk of cracking. It was also built to withstand wind. In fact, it was designed to sway with the wind (or at least vibrate) to avoid structural damage. — WTF fun facts

Source: “Why does the Eiffel Tower change size?” — Toureiffel.paris

WTF Fun Fact 13113 – The Island in a Lake in an Island in a Lake

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Vulcan Point has an interesting factoid that few pieces of land that share this distinction. It’s an island in a lake in an island in a lake in an island. These are called “recursive islands.”

How do you get an island in a Lake in an Island in a Lake?

How does this make sense?

Well, Vulcan Point is a tiny piece of land inside a crater lake on Volcano island in Lake Taal, which sits in the island of Luzon in The Philippines. Luzon is in the Batangas province. You can see it all here on Google.

Vulcan Point isn’t a tourist destination so much as it’s just a curiosity. Lake Taal is believed to have been formed by rainwater, and it was covered in vegetation until recently when the Taal Volcano erupted in 2020, and it evaporated. However, typhoon water brought back the lake, and its island is now a bit bigger (and Vulcan Point is on its peninsula).

Trust us, looking at a map will help.

Recursive islands

A recursive island is merely an island in a lake. But there are 12 other islands in lakes in islands in lakes in islands in the world. Canada has the most. Indonesia has a pair as well. The rest are in the UK and Cuba.

There’s only one island in a lake on island in a lake on an island in a lake in the world (which takes it all one step further). It’s called Manar. But its island, lake, next biggest island, etc. remain unnamed. But the main island is in Lake Yathkyed, way up in Nunavut.

We’re not sure they make the best vacation spots – though there’s little stopping you from visiting many of them – but they do make for good trivia! — WTF fun facts

Source: “Taal Volcano Main Crater Lake” — Wikipedia

WTF Fun Fact 13112 – Psycho’s Toilet Scene

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The Hitchcock thriller Psycho has some memorable scenes, a few of which take place in bathrooms. But Pshcyo’s toilet scene, while not the most iconic bathroom scene, was still a pathbreaker. It was the first American movie to feature an audible toilet flush.

Why is Psycho’s toilet scene unique?

Other films had featured toilets in passing. Silent movies had featured toilets flushing (although it was extremely rare). But the film pushed the envelope on the Hays Code (a self-imposed agreement to stay away from anything morally questionable) by featuring the up-close toilet flush.

It seems silly now, of course. We all flush the toilet. But American audiences were scandalized at the time to see and hear such a seemingly private thing on screen.

Interestingly, it wasn’t Hitchcock who wanted the toilet in the movie, it was reportedly screenwriterJoseph Stefano. According to Screenrant, “Stefano was adamant in showing this to add realism to the movie but Hitchcock stated it must be needed in the script. Stefano then wrote the scene in which Marion Crane flushes evidence down the toilet.”

What gets flushed?

The self-assured Marion Crane, played by Janet Leigh, steals money from the real estate office where she works and goes on the run. Of course, there’s an ill-fated stop at the Bates Motel, but before the iconic shower scene, we get the toilet flush heard ’round the world.

After her conversation with Norman Bates, the motel owner, Marian returns to her room and makes notes about her finances. Knowing better than to leave such evidence in writing, she tears up the paper and throws it in the toilet. Getting rid of the evidence for good requires a strong flush.

Apparently, it was necessary to hear that to make it clear that the evidence she created tying her to the theft is gone.

Of course, none of that matters to her anyone once she steps into that shower. —WTF fun facts

Source: “Psycho’s Toilet Flush & 9 Other Movies With Obscure Cinematic Milestones” — Screenrant

WTF Fun Fact 13111 – The Most Common Wild Bird

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You may see sparrows, cardinals, and pigeons non-stop. But the most common wild bird in the world actually lives in Africa. Now, it won’t be common for all of us to see, but it’s the most abundant wild bird, meaning there are more of these birds than any other birds.

What is the most common wild bird?

The most common wild bird in the world, in terms of its sheer abundance, is the Red-billed Quelea.

These birds live in sub-Saharan Africa (south of the Sarahan Desert). And they don’t just fly in flocks, they fly in massive hordes. In fact, if you see a group of these birds, you’re probably looking at 2 million or more in one flock.

According to the Audobon Society (cited below): “They fly in such tightly synchronized masses they can be mistaken at a distance for clouds of smoke.”

How many Red-billed Quelea are there?

It’s estimated that there are around 1.5 billion Red-billed Quelea out there. That makes them the most abundant wild bird in the world. Of course, they’re not common in North America, but if you took all the birds in the world and put them together, the number of Red-billed Quelea would dwarf the populations of most other wild birds.

The Red-billed Quelea is the size of a sparrow and is brown for the most part. Like most birds, the males are more colorful. They often have red and black feathers on their heads.

These birds eat seeds, which they crack open with their beaks. But unfortunately for farmers, they are drawn to crops like millet. And as you can imagine, having 2 million birds descend on your field for a meal can easily strip you of your income.

At times, “Single colonies can cover hundreds of acres, totaling tens of millions of birds,” according to Audobon.

Unfortunately, their tastes include cultivated crops, like millet. But the enormous growth of cereal crops in sub-Saharan Africa has likely led to the birds’ proliferation. —WTF fun facts

Source: “What Is the Most Abundant Wild Bird in the World?” — Audobon Society

WTF Fun Fact 13110 – Jonathan the Tortoise’s Birthday

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Jonathan the Tortoise has seen some things. More than any of us. And that’s because the big guy just celebrated his 190th birthday!

Jonathan the Tortoise’s birthday

A while back we told you about Jonathan, and at that time, no one really seemed to know precisely how old he was since he was brought to – a sanctuary in Saint Helena, a British territory in the Atlantic Ocean off the coasts of Angola and Namibia – at an unverifiable age.

Take a look:

WTF Fun Fact 12819 – Jonathan the Tortoise

Since then, it looks like it’s been decided that Jonathan is 190 as of this year. We can’t begrudge the guy a party, so we’ll go with it.

Jonathan’s party

CBS News reports that Jonathan the tortoise’s birthday party was quite a bash when it was held in early December 2022.

“The island held an official birthday bash over the weekend, celebrating the longest-living chelonian at the island’s governor’s residence. Along with hosting broadcasts about Jonathan’s significance, the island also held a ‘main event’ in his honor on Sunday [the 4th], where people could get Jonathan stamps and other Jonathan-themed souvenirs.”

Throughout the weekend, the world’s oldest land creature was hailed as a “national treasure” and indulged in a cake made of his favorite vegetables.

According to CBS News (cited below) “Jonathan’s long life has earned him two Guinness World Records – one in 2019 for becoming the world’s oldest land animal and another this January for becoming theoldest living chelonian, a term encompassing turtles, terrapins and tortoises.”

While the sanctuary where he lives lists his birth year as 1832, Guinness believes he could be older. That’s because he wasn’t discovered until 1882, when he was already fully mature. Clearly, some significant years had already passed. We just don’t know how many.

Regardless, Jonathan has survived two World Wars and was even alive when the first telephone call was made in 1876. We feel wiser just looking at him. —WTF fun facts

Source: “World’s oldest land animal, Jonathan the tortoise, celebrates 190th birthday” — CBS News

WTF Fun Fact 13108 – The Invention of Sliced Bread

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Have you heard the expression “It’s the best invention since sliced bread”? Well, that only goes back to the 20th century. The invention of sliced bread occurred in 1828.

Inventing sliced bread in Missouri

Humans have been baking bread for millennia (around 30,000 years, we estimate). But pre-slicing it is another matter. And we have to admit that while bread baking has reinvented itself to make bread slices seem passé, it’s convenient to have!

According to History.com (cited below), “The first automatically sliced commercial loaves were produced on July 6, 1928, in Chillicothe, Missouri, using the machine invented by Otto Rohwedder, an Iowa-born, Missouri-based jeweler.”

Rohwedder had long tried to make a machine to slice bread but was thwarted for over a decade when a 1917 fire destroyed his factory, blueprints, and prototype.

But he persevered, and “in 1928, Rohwedder’s rebuilt “power-driven, multi-bladed” bread slicer was put into service at his friend Frank Bench’s Chillicothe Baking Company.”

The reaction to slicing

People seemed to know immediately what pre-sliced bread meant for convenience in the home. As the website recalls, “an enthusiastic report in the July 6, 1928, edition of the Chillicothe Constitution-Tribune…noted that while some people might find sliced bread ‘startling,’ the typical housewife could expect ‘a thrill of pleasure when she first sees a loaf of this bread with each slice the exact counterpart of its fellows. So neat and precise are the slices, and so definitely better than anyone could possibly slice by hand with a bread knife that one realizes instantly that here is a refinement that will receive a hearty and permanent welcome.'”

We’re only surprised that “some people” may have found sliced bread “startling.” But we know there will always be folks startled by new technology – in fact, we’ve been there. It’s hard when things change, but the convenience of sliced bread remains (as do beautiful artisan loaves without a knick in them). — WTF fun facts

Source: “Who Invented Sliced Bread?” — History.com

WTF Fun Fact 13089 – The Benefits of Looking at Old Photos

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From physical photo albums to scrolling far back in your social media history, there’s something about looking at old photos that tends to make us happy. In fact, research has shown it can be downright relaxing. For those not skilled at meditation, looking at old photos can be even more relaxing than meditating!

Make yourself happy by looking at old photos

Make fun of photo-takers all you’d like (and we’ll join you for the ridiculous Instagram posers), but there’s some serious value in documenting happy moments.

In an article posted about the research on Digital Camera World (cited below), UK behavioral psychologist Jo Hemmings noted that “Taking the time to look back on our treasured memories can be truly beneficial for our wellbeing as it can help to evoke feelings of positivity and happiness. Because of this, and especially at times like this, we should take more time to appreciate and look back on them.”

Reminiscing for stress relief

If you want to crush your stress and boost your well-being, try a few tips that have made people happy during research studies:

  • Check out old photos of your friends, family, and pets on your phone. It can trigger feelings of happiness and strengthen these relationships.
  • Look at photos when you need a reminder that you’re loved. Reminiscing about happy moments with a photo helps recreate those feelings in our minds and transports us back to a happier place.
  • Make an album of funny photos. Silly old photos can cause your body to release endorphins, a natural stress reliever.
  • Look back at other people’s happy occasions. When we see our friends and family at significant points in their lives (weddings, graduations, etc.), it can help reduce cortisol and take our anxiety down a notch.
  • Hang happy photos in your home. People tend to find the places in their homes that contain photos are the most relaxing. Having copies of real, physical photos around your room, office, or house helps enhance feelings of social bonds.

— WTF fun facts

Source: “It’s official! Looking at old photos is more relaxing than meditating” — Digital Camera World