Dave Roos

Contributing Writer

Dave is a freelance journalist who has contributed hundreds of articles to HowStuffWorks since 2007. Raised in Pittsburgh, Pennsylvania, Dave attended Duke University where he earned the B.A. in comparative religious studies that has served him so well. Dave began freelancing when he and his wife moved to Mexico in 2003, publishing articles about Mexican food and culture in The New York Times, the Los Angeles Times and Newsweek. Nearly 15 years and three kids later, Dave and his family recently moved back to Mexico and just might stay a while.


RECENT CONTRIBUTIONS


Leftover pizza is practically a staple in college dorms and bachelor pads, but is it safe to eat at room temperature?

Is there something about American suburban high school culture that makes it fertile ground for school shootings? One researcher says 'yes.'

Britt Marie Hermes started out at a naturopath. Now, she writes a blog criticizing their practices, which has landed her in a lawsuit. At a time when naturopaths are fighting for more state licensing and insurance coverage, she shares her story.

The U.S.'s long-standing cash bail system produces two very different outcomes depending on how much money the defendant can scrape together.

The prosperity gospel is one of the most popular forms of Christianity in the entire world. But where did it come from and how did it get so big? And why do critics say it gives a false picture of Christianity?

A startling two-thirds of gun deaths in the U.S. are suicides, not homicides. Some suicide prevention advocates and gun rights supporters are coming together to educate people about suicide risk.

The flick, the shake and the micromort are just three of the unusual measurements that scientists use.

Even items with the word 'penny' in their name, like penny candy, cost more than a cent. What does a penny buy in America these days?

The most sweeping tax overhaul in decades became law in December 2017. What should U.S. taxpayers do in 2018 to benefit from the tax code changes?

Whether your account has been hacked or you've lost your private key code, do you have any recourse for recovering your lost bitcoin?

You may know the story of how Fletcher Christian and his men mutinied aboard the ship the Bounty. But what was the voyage all about in the first place?

Bitcoin had a banner 2017, trading at up to around $20,000 per unit. So, hopes were high for its debut on the futures market in December. How is this cryptocurrency faring in the real world of financial regulation?

Controversy surrounds the removal of public monuments honoring the U.S. Confederacy. But who determines which monuments go up or come down?

The real story about the roots of infidelity and monogamy is far more complicated than whether you have the "cheating gene."

The online company has its fingers in just about every e-commerce enterprise; it's even caused many organizations to go out of business. Yet the U.S. government has not tried to stop Amazon's growth. Why's that?

Just 9 percent of all shopping is online, but it's growing fast. Old-school brick-and-mortar stores are trying some new tricks to stay competitive.

To paraphrase John Oliver, "net" and "neutrality" are two spectacularly boring words. But here's the annoying truth: You should care about net neutrality. Learn why.

Bitcoin's price of more than $10,000 a coin has gotten everyone excited, but some financial experts are putting their money on another cryptocurrency.

TripAdvisor deleted — and later reinstated — a hotel review where a visitor alleged she had been raped. How can review websites legally balance their duty to warn users as well as to beware of false, defamatory content?

Private investigative firms like Black Cube, hired by Harvey Weinstein, use borderline illegal tactics to try to silence accusers.