fun fact

WTF Fun Fact 12723 – Air Conditioning Was Invented In Buffalo, New York

Willis Carrier is the man to thank if you’re cooling off in an air-conditioned space today. He was born in Angola, New York, and attended high school in Buffalo, where he would later work, he submitted the first drawings for a cooling unit in 1902.

Children and some laborers were already some time off in the summer when productivity was low because of heat and humidity. But, of course, many companies needed to keep on producing their goods.

Carrier, who got an engineering degree at Cornell and then returned to work as a research engineer at Buffalo Forge Company, was set upon the task.

But the primary goal wasn’t to give us all comfort during sweltering summers. In fact, according to the Willis Carrier website, the “young research engineer initialed a set of mechanical drawings designed to solve a production problem at the Sackett & Wilhelms Lithography and Printing Company in Brooklyn, New York.” Ironically, it was a problem with paper.

Also interesting is that Buffalo Forge was a supplier of forges, fans, and hot blast heaters. Creating cold air is the first challenge that needed addressing!

So why begin with paper? Why does paper need to be cool?

Well, it turns out it expands and contracts when heat and humidity are a problem – and that’s just not good when you need to print something.

Again, according to the website that now carries his life story:

“In the spring of 1902, consulting engineer Walter Timmis visited the Manhattan office of J. Irvine Lyle, the head of Buffalo Forge’s sales activities in New York. Timmis’ client, Sackett & Wilhelms, found that humidity at its Brooklyn plant wreaked havoc with the color register of its fine, multicolor printing. Ink, applied one color at a time, would misalign with the expansion and contraction of the paper stock. This caused poor quality, scrap waste and lost production days, Timmis said. Judge magazine happened to be one of the important clients whose production schedule was at risk. Timmis had some ideas about how to approach the problem but would need help. Was Buffalo Forge interested?”

Carrier was tasked with the problem because he already had a sterling reputation as a researcher and data collector, and this problem would need a lot of work.

But he did it. He was able to not only produce cool air but humidity as well by “replacing steam with cold water flowing through heating coils, balancing the temperature of the coil surface with the rate of air flow to pull the air temperature down to the desired dew point temperature.”

It wasn’t perfect, but it did the job. Carrier later started a company, and sold his updated creations to factories, and then to department stores and movie theaters in the 1920s.

The source down below is a comprehensive website on his invention and the impact it had on the world (just click through the dates on the left side of the page to follow the timeline to today). — WTF fun facts

Source: “The Invention That Changed the World” — WillisCarrier.com

WTF Fun Facts 12723 – No Such Thing As A “Safe Tan”

It’s been decades since we’ve known that tanning beds cause cancer and yet some folks just can’t get enough. It doesn’t help that the tanning industry continues to tout the benefits despite copious scientific evidence that they’re unsafe at best (and, at worst, deadly).

Of course, sun exposure is damaging too, but some of us can’t avoid that – you actually have to walk in and pay for skin damage at a tanning salon dispute there being no physiological benefit (for example, there’s no such thing as a “healthy base tan”).

In addition, a study published in JAMA Internal Medicine estimated that more than 3,200 people are treated for tanning-related injuries in US emergency rooms every year.

It’s hard to hear for many people as “tanning addition” becomes more of a problem, especially among young, white women.

But here are just a few facts from the American Academy of Dermatology Association to provide food for thought:

  • Even one indoor tanning session can increase the risk of developing skin cancer (melanoma by 20%, squamous cell carcinoma by 67%, and basal cell carcinoma by 29%).
  • Nearly 25% of young adults the Academy surveyed were unaware or unsure that tanning beds are not safer than the sun.
  • You can’t get enough vitamin D from tanning beds because the bulbs used emit mostly UVA light; however, your body needs UVB light to make vitamin D.
  • About 20% of 18- to 30-year-old white women who use tanning beds show signs of tanning addiction. When they don’t tan, they even report feeling fidgety or depressed.

And, finally, a Forbes article laid out the issues with indoor tanning as well as some research that shows our desire to tan may actually be influenced by genetics! — WTF fun facts

Source: “10 SURPRISING FACTS ABOUT INDOOR TANNING” — American Academy of Dermatology Association

WTF Fun Fact 12722 – A Tenth Of A Cent Of Savings

Yes, we know. When gas prices are over $5/gallon for even the cheap stuff, no one wants to talk about gas prices.

But chances are you’ve stared a little harder than usual at the prices on the signs lately. And if you’re observant, you’ve probably noticed that more often than not, those prices end in 9/10 cents.

Part of the reason is historical. In the early 20th century when states began taking gas to help pay for highway repair, they did it in increments of a tenth of a cent. That entire cost got added on to gas prices and passed along to drivers. But when gas was 9/10th of a cent back in the day, rounding up would have been a huge 10% hike.

Today, rounding up would hardly even register to most of us, but the pricing is part tradition and part marketing.

Nearly all prices are rounded down to the previous dollar (except for luxury goods, where paying a premium is no big deal). Think about how many prices end in 99 cents. It’s purse psychology.

Marketers study human psychology in order to understand what will make us buy things. And it turns out that we are far more likely to buy something that is $9.99 rather than $10. Our brains process that as real savings (because we’re paying in the nine-dollar range instead of the ten-dollar range).

It’s called “just-below pricing,” and it’s used everywhere. And it’s so effective that even the news doesn’t necessarily pick up a story on gas prices until they hit a new full dollar mark.

Meanwhile, there’s not much of a difference to our wallets if gas is $4.99 and 9/10ths a gallon. But seeing $5.00 and 9/10ths sets everyone off in a whole new way. — WTF fun facts

Source: “Why gas prices always end in 9/10 of a cent” — WTF Fun Fact

WTF Fun Fact 12721 – The Wara Art Festival

Niigata isn’t a typical travel destination, but it does draw people in for a unique festival held each year between August and October.

The Wara Art Festival is held in Uwasekigata Park and shows off amazing sculptures made of rice straw left over after the annual rice harvest.

People weren’t quite sure what to do with all the straw, but now tons of it is donated to art students at Musashino Art University in Tokyo as well as local volunteers who are tasked with making giant animal sculptures with it. Some of them are up to 16 feet tall!

The sculptures include gorillas, dinosaurs, bears, rhinos, and more. Underneath is a wood frame skeleton to ensure the sculptures stay up throughout the festival, but over two weeks, more and more layers of wara are added. Some are braided, others thatched – in fact, there are many techniques the artists use to build their sculptures.

If you do go to Niigata for the festival, be sure to try the rice, which is considered to be the best in all of Japan. And according to Japan’s tourism association, the town is also known for its sake as well “thanks to the high snowfall in the prefecture which creates pristine conditions for rice growing. Centuries-old sake making traditions are kept alive by the toji, or Sake Masters, of Niigata. Local sake from breweries in Niigata are revered nationwide for their dry, sharp finish and refreshingly crisp flavour.”

If you visit the park, there are sake breweries within walking distance as well as beer breweries to visit. — WTF fun facts

Source: “Wara Art Festival, Niigata” — Japan National Tourism Association

WTF Fun Fact 12720 – Let Them Eat Cake

We’ll spare you some of the legal jargon, but we did actually read the 51-page judgment of an Irish court declaring that the bread used by restaurant chain Subway is now basically considered a confectionary in Ireland.

It wasn’t exactly riveting, but it was enlightening. And to summarize – it all had to do with paying taxes. Otherwise, we doubt Ireland would have bothered to consider it any more closely. And no one is saying you can’t call it bread – the judgment is only referring to how the bread is categorized for tax purposes.

This started when an Irish Subway franchisee, Bookfinders Ltd. filed a suit claiming that they were due a refund for value-added tax (VAT) payments between January 2004 and December 2005.

Their argument hinged on 2 paragraphs of the Value Added Tax Act of 1972, which described which goods and services should have VAT added to them. Bookfinders claimed that the majority of their goods fell into the category requiring a 0% rate (rather than the 13.5% they had paid).

That category includes: “chocolates, sweets and similar confectionary (including glacé or
crystallised fruits), biscuits, crackers and wafers of all kinds, and all other confectionary and bakery products whether cooked or uncooked, excluding bread…”

And “bread” is specifically defined as “food for human consumption manufactured by baking dough composed exclusively of a mixture of cereal flour and any one or more of the ingredients mentioned in the following subclauses in quantities not exceeding the limitation, if any, specified for each ingredient…”

To spare you more jargon, we’ll just say that the subclause in question is the one that says that in order to be considered bread, the weight of any fat, sugar, or “bread improver” cannot exceed 2% of the weight of the flour included in the dough.

It actually gets pretty complicated since there are different tax rates for different items and part of the argument is about averaging out tax rates, how tax rates might differ for businesses offering primarily take-out goods, and whether the temperature of the food makes a difference when it comes to taxing it.

This might be the very best (and by best we mean absurd) sentence: “They [Bookfinders] also submitted that the 1972 Act breached the principle of legal certainty by making the difference between ambient air temperature and the temperature of the food central to their VAT classification.”

Anyway, in the end, the fact that Subway’s bread had too much sugar in it (5 times as much as allowed by the tax code), means it is not considered bread for tax purposes.

Subway was pretty miffed at the implication that their bread was not bread, saying:

“Subway’s bread is, of course, bread. We have been baking fresh bread in our restaurants for more than three decades and our guests return each day for sandwiches made on bread that smells as good as it tastes.”

Our favorite commentary on the matter is this Tweet:

If anything, people got a warning that their sandwich bread had a lot of sugar in it, but there doesn’t seem to be much proof that anyone cared. — WTF fun facts

Source: “For Subway, A Ruling Not So Sweet. Irish Court Says Its Bread Isn’t Bread” — NPR

WTF Fun Fact 12718 – Crickets Can Tell You The Temperature

Let’s get one thing out of the way up front. While we call the method of measuring temperature using cricket chirps “Dolbear’s law,” the idea was first laid out in 1881 by Margarette W. Brooks. Her report “Influence of temperature on the chirp of the cricket” was published in Popular Science Monthly, it just wasn’t noticed until after Amos Dolbear published an 1897 article called “The Cricket as a Thermometer” 16 years later.

Regardless, it’s known as Dolber’s law, and it states that there is a connection between the air temperature and the rate at which crickets chirp. And it’s accurate for the field cricket within about 1 degree Fahrenheit.

It’s kind of like counting the seconds between lightning strikes and thunder, except way more inconvenient.

However, it is true that crickets chirp more speedily as the weather warms up. Dolbear realized this because crickets chirp consistently – that makes it possible to use the numbers in an equation.

In the original paper, Dolbear said you can get the approximate temperature in degrees Fahrenheit based on the times a cricket chirps in 1 minute – but you have to do some more math.

T_{F}=50+\left({\frac {N_{{60}}-40}{4}}\right).
In other words, T = 50+[(N-40)/4]
T = temperature
N = number of chirps per minute

If you want a shortcut for Celcius, you can use the number of chirps in 8 seconds and add 5.

Of course, there are many types of crickets, and Dolbear realized they each had a different rate of chirping. So he created new equations for other species. The problem for us is that we have to know which type of cricket we’re dealing with.

In fact, the common field cricket really isn’t the best cricket to use since its age, and whether it’s mating season can also affect the speed at which they chirp (so they’re not entirely consistent). But they’re probably good enough for a quick experiment. –WTF fun facts

Source: “How to Use Crickets to Calculate Temperature” — Thought Co.

WTF Fun Fact 12717 – Humanity In A Meatball

Turns out we’re not much to look at if you were to put all of humanity in a blender and use the solid parts to create a giant meatball.

On a Reddit forum called r/theydidthemath, user kiwi2703 made some gruesome calculations and found that the nearly 8 billion humans on Earth could be blended into a goo sphere that’s actually pretty small, all considering.

We’re not sure what motivated them to come up with this little math trick, but it did make us say “WTF?!” – and that’s why we’re all here, right?

Behold:

[Self] If you blended all 7.88 billion people on Earth into a fine goo (density of a human = 985 kg/m3, average human body mass = 62 kg), you would end up with a sphere of human goo just under 1 km wide. I made a visualization of how that would look like in the middle of Central Park in NYC. from theydidthemath

— WTF fun facts

Source: “Blended Up, Every Living Human In The World Would Make A Meatball Just Three Eiffel Towers Wide” — IFL Science

WTF Fun Fact 12713 – da Vinci’s “Helicopter”

It’s hard to put into words the genius of Leonardo da Vinci. You have to look beyond his paintings and into his notebooks to see just how masterfully his brain worked. It’s like he understood the secrets of nature in a way no one else could (either then or now).

For example, in the 1480s, he was already imagining ways to create flying machines. And some might call his “aerial screw” the forerunner of the helicopter. That’s an innovation that it took us 400 more years to actually create!

(It’s only fair to mention that de Vinci’s drawing is not the first-ever of a helicopter-type vehicle. In 400 BCE, Chinese Taoist scholar Ge Hong described a “vertical flying machine” made of bamboo in the Baopuzi, though he was referring to a spinning toy. And since Chinese manuscripts made their way to Europe during the Renaissance, da Vinci was possibly influenced by this. It certainly influenced future helicopter inventors.)

Today, we even call the Renaissance artist’s invention “da Vinci’s helicopter” these days, and he wrote an entire treatise on flight. Just look at a page to see what he was capable of:

From: https://airandspace.si.edu/exhibitions/codex/codex.cfm#page-20-21

In the modern world, companies still bicker over who invented the first real helicopter, so it’s just more fun to give credit to da Vinci.

Of course, the aerial screw isn’t the same helicopter we have today. It’s not like he built a gas engine or anything, but he did conceive of a blade that would lift a vehicle vertically off the ground. His blades were not flat but shaped like a screw or helix.

As physicist Tom Hartsfield described in Big Think:

“What da Vinci lacked was the modern materials necessary to construct a lightweight and durable blade. He described the helical screw as being made of linen, with the pores stopped up by starch.

He also lacked the continuous motive power for such a machine. Men turning cranks could never dream of flying: they are far too heavy and too weak to produce enough power to lift themselves…Cognizant of this limitation, da Vinci envisioned a spring, wound by the crank turners, building up and storing energy. That built-up energy could be released in a quick unwinding burst, spinning the screw rotor. But as far as we know, such a device was never built.”  — WTF fun facts

Source: “15th-century futurism: Leonardo da Vinci’s famous helicopter design finally takes flight” — Big Think

WTF Fun Fact 12712 – Pine Cone Hygrometers

While we knew plants responded to changes in weather, we must have missed the day our teacher showed the class that we could use a pinecone to gauge humidity.

Now, technically, we feel like walking out into a humid day is enough to make us say, “wow, it’s humid out here.” End of story. But let’s say you’re having a disagreement with a friend about whether it’s humid or just simply hot. THAT’S when it might come in handy to ask a pine cone.

Pine cones open up their scales when the weather is dry (presumably, the evolutionary logic is so their seeds won’t get bogged down too close by and compete with one another when they grow). When the weather is humid, they close back up.

When pine cones are wet in general, their scales swell shut. The outer parts shrink when they’re dry, causing them to pull away from the cone. (This is also why crafters will heat pine cones in the oven before using them. And if you rinse an open pine cone, it will close again.)

Of course, nature is finicky and can take a minute to get the hint, so don’t ask too early in the morning since it may take them some time to get the hint and respond appropriately. But next time you need a science fair project, that seems like a cheap way to do it!

If this is confusing, or you’d simply like to see how it works, check out this oddly mesmerizing video:

– WTF fun facts

Source: “Pinecones close when it rains. Here’s how they do it!” — Discover