Dave Roos

Dave Roos

Contributing Writer

Dave is a freelance journalist who has contributed hundreds of articles to HowStuffWorks since 2007 reporting on every topic under the sun: history, culture, politics, economics, technology, religion and more. He’s also a regular contributor to History.com and a writer/researcher for Stuff You Should Know.

Raised in Pittsburgh, Pennsylvania, Dave attended Duke University where he earned a B.A. in comparative religious studies and more importantly met his amazing wife Mandy. They have three kids and live in Boise, Idaho.


Recent Contributions

How does a hurricane become a Category 5 and what's it like to live through it? Those who have say you don't want to know.

By Dave Roos

The Dahomey warriors were an all-female regiment that existed for 300 years. Their bravery is legendary and portrayed in "The Woman King," but their ties to the Transatlantic slave trade are undeniable.

By Dave Roos

You can open a can with a can opener, but a can with a pull tab is even easier to open. So, why don't more cans come with pull tabs?

By Dave Roos

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Midterm elections in the U.S. don't get the public excited the way presidential elections do. But there's a lot at stake, actually, during these contests. Why do midterms exist, anyway?

By Dave Roos

Mabon is a fairly recent Pagan festival created to give thanks for the harvest. What does Mabon mean and how is it celebrated?

By Dave Roos

Queen Elizabeth II was a beloved figure who was careful not to cross the line of convention. How much authority did she really wield during her historic reign?

By Dave Roos

As we pay tribute to Britain's beloved Queen Elizabeth II, we look at one well-known part of her life: her love of corgis.

By Dave Roos

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Today Paris' best-known attractions are perhaps the Eiffel Tower and Champs-Élysées. In the 19th-century, it was the morgue.

By Dave Roos

Beloved of preteen Boomers, this subversively stupid magazine set the tone for everything that came after it, from "Saturday Night Live" to "The Daily Show."

By Dave Roos

A koan is a riddle or puzzle that Zen Buddhists use during meditation to help them unravel greater truths. We look at some examples to see how these enigmatic sayings work.

By Dave Roos

If you've owned cats for a while, you may think you know exactly where they like to be touched. But a study found that cat lovers are the folks most likely to pet felines in places they dislike.

By Dave Roos

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In the U.S., the bar to running for president is deliberately set low – only age and citizenship rules are written into the Constitution. Still, are there any laws that would bar a felon from holding the highest office in the land?

By Dave Roos

Members of the Osage Tribe some of the richest people on Earth around 1920. Then they started dying, mysteriously. Who was killing them and what did oil have to do with it?

By Dave Roos

If that roll of toilet paper isn't lasting as long as it used to, it's not your imagination — companies are shrinking the sizes of their products while charging the same or even more. Here's why.

By Dave Roos

Good luck predicting the economic future; even the experts get it wrong. But there are sure warning signs to look for when a recession is ahead.

By Dave Roos

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It may sound like the name of a '90s indie band, but Acoustic Kitty was a CIA program to train housecats to be spies. Imagine how that turned out.

By Dave Roos

Ashura is a very important holiday to both Shiite and Sunni Muslims but the two groups attach very different meanings to the day.

By Dave Roos

The Anglo-Zanzibar War lasted less than an hour, involving two countries very unevenly matched. But what was the conflict about?

By Dave Roos

In 1983, the worst-ever diving accident occurred. Five people working on an oil rig experienced explosive decompression, which caused them to die in horrific ways.

By Dave Roos

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A pilot program in the Atlanta Public School system is teaching students de-escalation strategies during one of the city's worst crimewaves in decades. Will it work?

By Dave Roos

Do you hold your breath when you're driving through a tunnel or keep a lucky rabbit's foot in your car? You're not alone.

By Dave Roos

The Mega Millions lottery is, well, super mega tonight. How much does the lottery have to be to get you to play?

By Dave Roos

The world's youngest mother, Lina Medina, gave birth to a healthy baby boy at age 5 in 1939. But how could that happen?

By Dave Roos

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During World War II, 1,000 Japanese soldiers retreated from fighting with the British into the mangroves of Ramree Island, Burma, where most were eaten by crocodiles. Or so the story goes. But what really happened?

By Dave Roos

The Bureau of Labor Statistics report that showed a 9.1 percent inflation rate for June has many people concerned. Here are some smart money moves to make in inflationary times.

By Dave Roos