General General 4 min read

Enlightening comparisons

How many elephants fit in a cloud? Wild comparisons you won’t believe

Image: David Yu

How much does a cloud weigh? How powerful is the flow of Niagara Falls? How deep is the deepest point of the Grand Canyon? And how far away is the Moon from Earth? Sure, we could give you the straight numbers. Or we could find fun and illustrative ways to put these measurements into perspective, like using basketballs, cars, elephants, and electric toasters. Read on to learn some down-to-earth comparisons of outstanding things!

1
Alaska is so big, it could fit Texas inside twice

Image: Paxson Woelber

Sure, everything’s bigger in Texas… but where does that leave Alaska? The Last Frontier spans about 663,000 square miles , while the Lone Star State covers roughly 268,000 square miles. So yes, you could comfortably fit Texas inside Alaska twice, and still have room left over for California.

2
You could stack 10 Washington Monuments inside the Grand Canyon’s depth

Image: Sonaal Bangera

At its deepest point, the Grand Canyon plunges more than 6,000 feet. That’s more than a mile of height, to give you an idea. To put that in perspective, the 555-foot-tall Washington Monument could fit inside the canyon roughly ten times from top to bottom.

3
The Statue of Liberty’s sandal is the size of a small car.

Image: A n v e s h

Have you ever paid attention to the Statue of Liberty’s feet? Yes, they are visible, right next to the broken shackles at her base. You can’t stand next to the feet, of course, but if you could, you’d see that each sandaled foot measures about 25 feet long , which is a bit over the length of a Chevy Suburban.

4
The Empire State Building was built faster than a modern kitchen remodel

Image: Kit Suman

Did you know that one of the most famous buildings in the world was pretty much speed-built? Construction took just 410 days , starting in 1930 and finishing in 1931. This rapid progress was possible thanks to prefabricated steel parts and a workforce of roughly 3,400 workers each day. Nowadays, your average kitchen renovation takes 6 months to a year.

5
If the Earth were the size of a basketball, the Moon would be a tennis ball 24 feet away

Image: Anne Nygård

This is a fun way to illustrate the relationship between our planet and its satellite. If Earth were the size of a basketball (about 9.5 inches in diameter), the Moon would be roughly the size of a tennis ball (about 2.5 inches).

But they would be a whopping 24 feet away, about the length of a stretch limousine (or a Statue of Liberty sandal). This scale model helps explain just how far apart and disproportionate they really are!

6
A single cloud can weigh as much as 90 elephants

Image: Volodymyr Dobrovolskyy

Clouds may not look heavy, but these giant beauties are surprisingly massive. Scientists estimate that an average fluffy cumulus cloud contains about 1.1 million pounds of water, which is roughly the weight of 90 adult African elephants .

7
You could fit 7 Yankee Stadiums inside the Mall of America

Image: David Vives

With over 5.6 million square feet, the Mall of America is one of the largest indoor spaces in the country . Imagine trying to meet your friends in just one of its 500+ stores!

The mall also features an indoor amusement park and an aquarium. To give you an idea, Yankee Stadium covers roughly 800,000 square feet. You could fit about seven of them within the Mall of America.

8
A hummingbird flaps its wings faster than a car engine runs

Image: James Wainscoat

Hummingbirds beat their wings between 50 and 80 times per second , roughly eight times faster than the revolutions per second of a typical V8 engine at idle. No wonder they have enough force to seemingly fly in place!

9
Comparing lightning bolts with defibrillator shocks

Image: chutipon Pattanatitinon

The energy in lightning bolts can vary, but it’s not uncommon for them to unleash 5 billion joules . Roughly, a biphasic defibrillator delivers about 200 joules in a single shock. And, to give you an idea, it takes roughly 50,000 joules to toast a single slice of bread.

10
Yellowstone sits on top of a supervolcano the size of Rhode Island

Image: Denys Nevozhai

You might have heard of Yellowstone’s supervolcano and how tourists leave mesmerized by the geysers, hot springs, and wildlife.

But the size of its caldera is even more astonishing: it stretches 20 by 45 miles , covering nearly 1,350 square miles. That’s roughly the same area as Rhode Island, the smallest U.S. state.

11
Niagara Falls could fill an Olympic pool in less than a second

Image: Hadi Yazdi Aznaveh

A standard Olympic-size swimming pool holds about 660,000 gallons. Niagara Falls, however, pours roughly 700,000 gallons of water every second, meaning it could fill a pool in under one second, approximately 0.94 seconds to be exact.

If you were filling the same pool with a standard hose, it could take about 19 days .

General General 6 min read

Beloved American brands

Why did Kodak and Woolworth's disappear? The real reason

Image: pony rojo, CC BY-SA 2.0, via Wikimedia Commons

Blockbuster, Kodak, Woolworth’s… just hearing those names can bring back many memories, even though the brands have long since gone. T hese weren’t just brands; they were part of our routines, our weekends, and our family vacations. For decades, these companies seemed unstoppable. Then, they disappeared. So what happened? Here’s the story behind 10 iconic American brands that once stood at the top, and the real reasons they faded away.

1
Blockbuster

Image: RegionalQueenslander, CC BY-SA 4.0, via Wikimedia Commons

During the 1980s and 1990s, Friday night often meant one thing for American families: a trip to Blockbuster. Browsing the aisles for a movie, debating what to watch, and grabbing popcorn at the counter became a weekly routine. But nothing lasts forever.

Born in 1985, Blockbuster conquered the massive home-video market with thousands of stores by the late 1990s and early 2000s, catering to families with at-home VCRs. Then technology changed everything. First came DVD-by-mail services like Netflix, followed by streaming, which left Blockbuster struggling. Late fees and inconvenience only pushed more customers away. The company filed for bankruptcy in 2010. Today, just one official store remains in Bend, Oregon, where visitors still stop by for a dose of the video-store era.

2
Kodak

Image: 多多123, CC BY 4.0, via Wikimedia Commons

Back in the day, almost every vacation, birthday, wedding, or holiday gathering seemed to include a Kodak camera, or at least a roll of Kodak film. Founded in 1881, Kodak helped keep the moments that filled family photo albums for generations.

From the 1960s through the 1990s, Kodak dominated the world of film and photography. But that success also made the company slow to accept that technology was changing. Ironically, Kodak helped invent one of the first digital cameras in 1975, yet it hesitated to embrace the future. By the 1990s and 2000s, digital cameras (and later camera phones) quickly replaced traditional film. In 2012, the company declared bankruptcy.

3
Pan Am

Image: Felix Goetting (GFDL 1.2 or GFDL 1.2), via Wikimedia Commons

Long before flying became an everyday experience, Pan American World Airways, better known as Pan Am, was already carrying Americans across the world. It was founded in 1927, and during the 1960s and 1970s, the airline became a symbol of glamorous air travel.

Its famous blue globe logo was instantly recognizable, even to those who rarely flew. But by the late 1970s, rising competition, fuel costs, and financial troubles began weakening the company. After years of mounting losses and debt, Pan Am shut down in 1991. Even so, its fame was such that even today, more than 30 years later, we still remember it.

4
Woolworth’s

Image: Warren LeMay from Cullowhee, NC, United States, CC0, via Wikimedia Commons

Before Woolworth's made the "five-and-dime" famous, shopping in America looked very different. For decades, Americans visited Woolworth’s for everything from toys and school supplies to household goods and everyday essentials. By the 1960s, the brand had become a familiar part of American life.

Created in 1879 by Frank Winfield Woolworth, the chain grew into one of the country’s largest retailers. But in the 1970s, malls and discount giants like Walmart changed the way Americans shopped, and Woolworth struggled to keep up. By the 1980s, the iconic chain was slowly disappearing. Most stores closed during the 1990s, and the Woolworth retail chain officially ended in 1997.

5
Circuit City

Image: kennejima, CC BY 2.0, via Wikimedia Commons

Testing giant stereo systems, browsing rows of CDs and video games, and shopping for the newest TV were all part of the experience at Circuit City, once one of America’s biggest electronics chains.

Founded in 1949 by Samuel S. Wurtzel in Richmond, Virginia, as "Wards Company," the retailer adopted the Circuit City name in 1984. During the 1980s, 1990s, and early 2000s, it became the go-to place for Americans buying a TV, stereo, computer, or any electronic device. But like many companies on this list, Circuit City struggled as shopping habits changed and online stores became more convenient. A controversial 2007 decision to lay off thousands of experienced employees further hurt the company’s reputation. Circuit City couldn’t survive mounting losses and closed all remaining stores in 2009.

6
Borders

Image: Bindydad123, CC BY-SA 4.0, via Wikimedia Commons

Remember Borders? Born in 1971, its huge stores, filled with books, music, magazines, and cozy reading spaces, invited customers to spend entire afternoons there.

During the 1990s and early 2000s, the rise of large shopping malls actually helped Borders thrive, turning its bookstores into popular destinations inside malls across the US. But eventually, the company ran into a challenge it couldn’t overcome: online shopping and digital reading. Competitors like Amazon surged ahead, while Borders struggled to adapt and made costly business decisions, including outsourcing its online sales to Amazon for years. The company collapsed financially in 2011 and soon closed all remaining stores.

7
Bugle Boy

Image: Claire Abdo

In the late 1980s and early 1990s, teenage fashion became almost synonymous with Bugle Boy. Famous across the country for its casual jeans and memorable TV commercials, the brand became a major part of American mall culture and was sold in department stores nationwide.

But fashion never stands still, and brands have to constantly adapt to survive. By the late 1990s, newer youth-oriented labels had taken over with fresh styles that quickly made Bugle Boy seem outdated. Sales began to fall, and after years of struggling to keep up with changing trends, the company closed its stores in 2001.

8
Howard Johnson’s restaurants

Image: Tichnor Quality Views, Made Only by Tichnor Bros., Inc., Boston, Mass., Public domain, via Wikimedia Commons

During the 1960s and 1970s, a stop at Howard Johnson's was part of the classic American road-trip experience for many families, and that was no accident.

Founded in 1925 in Quincy, Massachusetts, the famous orange-roofed chain reached its peak when America’s expanding highways and booming car culture made roadside travel more popular than ever. But by the late 1970s and early 1980s, the growing popularity of fast-food chains like McDonald's began changing the way Americans ate on the road. Drivers increasingly wanted meals that were faster, cheaper, and more standardized, while interstate highways also redirected traffic away from many older roadside locations. Unlike some other brands on this list, Howard Johnson’s faded away slowly over the decades. The last restaurant finally closed in 2022.

9
Burger Chef

Image: John Margolies, Public domain, via Wikimedia Commons

In 1958, a name emerged as one of the pioneers of America’s growing fast-food industry: Burger Chef. By the late 1960s, the chain had more than 1,000 locations across the country and had become one of McDonald's’s biggest competitors.

Long before Happy Meals became famous, Burger Chef helped popularize the idea of marketing meals directly to children with toys and themed publicity. But during the fast-food wars of the 1970s, competition became fiercer than ever. While McDonald’s and Burger King expanded by leaps and bounds, Burger Chef struggled with financial problems and changing consumer tastes. In 1982, the company was sold to Hardee's, which gradually converted most Burger Chef locations into Hardee’s restaurants.

10
Sports Authority

Image: Anthony92931, CC BY-SA 3.0, via Wikimedia Commons

Throughout the 1990s and 2000s, many Americans looking for running shoes, gym shorts, and sports gear headed straight to Sports Authority.

Known for its huge stores packed with athletic apparel, exercise equipment, bicycles, camping gear, and team sports products, Sports Authority became the ideal shopping destination for families and athletes across the US. But as online shopping rapidly changed retail in the 2000s, the company struggled to adapt. Heavy debt from expansion efforts and a slow shift to e-commerce eventually caught up with the chain. Sports Authority declared bankruptcy in 2016 and closed all remaining stores later that year.

General General 4 min read

The secrets of the greenback

Dollar bills are green for this reason

Image: Pepi Stojanovski

The U.S. dollar is one of the most powerful and recognizable currencies in the world, but its physical form is unique for many other reasons . From its composition to its symbols, dollar bills and coins are carefully designed to combine history, security, and convenience. Let’s explore our national currency!

1
What are bills made of?

Image: Viacheslav Bublyk

Unlike other currencies, dollar bills are not made of paper or plastic. U.S. dollar bills are made from a special fabric blend composed of 75% cotton and 25% linen. This mix makes the bills extremely durable and resistant, and they can be folded about 4000 times before tearing.

2
What bills are valid?

Image: U. S. Government, The Bureau of Engraving and Printing, Public domain, via Wikimedia Commons

Any U.S. dollar bill that was legally printed is valid, no matter how old, as American currency does not have an expiration date. While some bills might not be accepted by businesses of foreign exchange services due to their condition or if they are a discontinued version of the bill, the bills themselves are still valid, and American banks will accept them, though they might take them out of circulation.

3
American leaders

Image: Lukasz Radziejewski

Five bills have a depiction of an American president. The exceptions are the $10 bill, with Alexander Hamilton on the front, and the $100 bill, with Benjamin Franklin. The $1 bill, depicting George Washington, is extremely symbolic: several elements are repeated 13 times as a nod to the thirteen colonies, and it showcases the Bald Eagle and the Eye of Providence as a sign of God watching over America.

4
A change in size

Did you know that dollar bills used to be so big that they were nicknamed "horse blankets"? Original dollar bills were 7.4 × 3.1 inches. In 1929, the Treasury Department reduced the size of bills to 6.14 × 2.61 inches to reduce production costs and materials. Old bills, though still valid, are worth much more as collector items.

5
Uniformity

Image: Avinash Kumar

Besides their value and design, all dollar bills have the same size (6.14 × 2.61 inches), color, and weight (1 gram) , which sets American currency apart from other countries where bills of different values are differentiated by size, color, or both. Why doesn’t the U.S. implement differences among bills? The cost of adapting vending machines, bank drawers, and ATMs to new bill sizes would cost billions of dollars.

6
Hard to copy

Image: United States Treasury Department, Public domain, via Wikimedia Commons

Originally, dollars were not green, but black. As time passed, green ink was favored, as it was cheap and did not fade as much as black. The new color also prevented people from using black-and-white cameras to create counterfeit money. Currently, dollar bills are predominantly green, but newer versions also include extra colors, such as pink, orange, or purple.

7
A $100,000 bill?

Image: The original uploader was Durova at English Wikipedia., Public domain, via Wikimedia Commons

Have you ever seen a $500 or 1,000 dollar bill? What about a $100,000? Up until 1945, the U.S. Treasury printed $500, $1,000, $5,000, $10,000, and $100,000 notes , in addition to the values currently in use. These higher-value notes were mainly intended for bank and government use, but were sought by criminals as they made it easier to hide large amounts of money. Even though they were officially discontinued in 1969, these notes are still valid, though rare, and they have a high worth as collector's items.

8
No numbers

Image: Quilia

Unlike bills, American coins have different sizes and colors related to their value. Originally, gold, silver, and copper were used for coins, but modern coins are made of copper, zinc, or nickel. Besides their size and design, the value of each coin is printed in letters, not in numbers , alongside depictions of American presidents.

9
Liberty for all (the coins)

Image: Money Knack

By law, all American coins must include six specific details : the word ‘Liberty’, the name of our country, the national motto "In God We Trust", the oldest American motto "E Pluribus Unum", the value of the coin, and the year. Each coin also includes a mint mark that shows where it was made: "P" for Philadelphia, "D" for Denver, "S" for San Francisco, and "W" for West Point.

10
A global currency

Image: Logan Voss

The American dollar is one of the most powerful currencies in the world, acting as a backbone for international trade and finances. It is estimated that two-thirds of the physical dollars in circulation are outside American territory. Besides the U.S. and its territories, eight sovereign nations have the U.S. dollar as their official currency, with several more accepting it as legal tender.

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