What Made The AK-47 So Popular?

iStock/RollingEarth
iStock/RollingEarth

Over the last 64 years, the AK-47 has become the iconic rifle of choice for everyone from the Soviet military to terrorists to drug lords. Let’s take a look at the world’s most common assault rifle.

© Ed Darack/Science Faction/Corbis

Why are AK-47s sometimes referred to as Kalashnikovs?

That name would be a nod to the rifle’s inventor. Mikhail Kalashnikov was born to a farming family in southern Russia in 1919. As a boy, he wanted to become a poet, but like a lot of young Russian men he ended up in the army instead. Kalashnikov rose through the ranks to become a tank commander until he was wounded while fighting Nazis at the Battle of Bryansk in 1941.

While Kalashnikov was convalescing he began poking around in small arms design.

A fellow soldier had asked Kalashnikov why the Russians weren’t as well armed as the Nazis, each of whom had his own automatic rifle. Kalashnikov started tinkering with designs for an automatic rifle that could help defend his country, and he finally perfected his design in 1947. The rifle is officially known as the Avtomat Kalashnikova (Automatic Kalashnikov), and the “47” derives from its year of completion.

What made the AK-47 so popular?

One might think that the AK-47’s wild popularity stems from pinpoint accuracy. Think again. The standard issue AK isn’t particularly accurate; it’s best in relatively close-range combat situations rather than distant engagements.

The AK-47’s major selling points are its simplicity and its ability to take a beating. The rifle was designed to be easy to use, easy to repair, and reliable. The ruggedness of the gun makes it the perfect weapon for dirty, sandy conditions or for soldiers who might not be super disciplined about maintaining their firearms. Its simple firing mechanism means that the gun jams very rarely. Depending on conditions of use, an AK-47 can have a service life of anywhere from 20 to 40 years.

We see terrorists and rebels with Kalashnikovs all the time. How many are out there?

The AK’s ubiquity isn’t simply a testament to its reliability. It’s also partially a function of the mind-numbing number of Kalashnikovs that have been produced. Oxford economist Phillip Killicoat cites an amazing statistic in his 2006 paper “Weaponomics: The Economics of Small Arms.”

There are somewhere around 500 million firearms worldwide. Around 100 million of those are some sort of Kalashnikov, with the AK-47 leading the way with roughly 75 million units in existence.

Huge production numbers coupled with a long service life have littered the globe with AKs. Killicoat’s paper cites another big reason for the AK-47’s global status: the Soviet government may have been stingy with its own people, but it was awfully generous when it came to giving away or selling Kalashnikovs to regimes and rebel groups it supported.

Even with relatively high demand, such a gigantic supply has kept the AK fairly cheap for terrorists, drug lords, and thugs around the globe. In fact, in some places an AK-47 is actually much cheaper today than it was 25 years ago. In a 2005 interview about his book Illicit, editor Moises Naim of Foreign Policy relayed an anecdote about a Kenyan village in which an AK-47 cost 15 cows in 1986. Nineteen years later the price had cratered to just four cows. In Killicoat’s “Weaponomics” paper he breaks down average AK-47 prices by region, and while most run buyers a few hundred dollars, he tracked transactions for as little as $40 or $50.

So Mikhail Kalashnikov must be pretty rich, right?

Think again. The Soviet government wasn’t exactly generous with its royalty payment on his rifles. Kalashnikov has confirmed that he never made a cent in royalties off of his gun design since the government simply took the plans and mass-produced the rifle. Kalashnikov reportedly lives modestly off of his government pension. He's lent his name to several other products, including Kalashnikov Vodka, which was launched in 2004.

Kalashnikov actually comes across as a deeply conflicted inventor in interviews and public statements. He’s obviously very proud of having designed a workhorse rifle that served the Russian military for so long, but he’s uneasy about the role the gun has assumed in terrorist culture. At the same time, he realizes that he’s not to blame for the AK-47 ending up in the wrong hands. At a celebration of his 90th birthday, he said, ''I created a weapon to defend the borders of my motherland. It's not my fault that it's being used where it shouldn't be.”

On a 2002 visit to Germany, Kalashnikov expressed similar ambivalence, saying, “I'm proud of my invention, but I'm sad that it is used by terrorists. I would prefer to have invented a machine that people could use and that would help farmers with their work—for example a lawnmower."

Is it Legal to Own an AK-47 in the United States?

Short answer: if you’re talking about a legitimately fully automatic AK-47, only in rare cases. While it’s no longer legal for domestic companies to make or import machine guns for civilian use, private individuals can still lawfully own machine guns that were legally registered prior to May 1986. These grandfathered-in guns (including some AK-47s) can legally be transferred to new owners, but it’s a tightly regulated transaction overseen by the ATF. It’s also pricey; in addition to all the background checks and oversight the transfer usually includes a $200 excise tax.

Semi-automatic look-alikes (that is, rifles where you have to pull the trigger each time you want to fire a shot) are legal in many areas, though. Some enterprising companies have used this fact to their advantage. In 2009 Max Motors of Butler, MO ran a “Free AK-47 with Any New Truck” promotion. To see a contentious CNN interview with the dealer, click here.

How Is a Sunscreen's SPF Calculated?

Rawpixel/iStock via Getty Images
Rawpixel/iStock via Getty Images

I’m a pale person. A very pale person. Which means that during these hot summer months, I carry sunscreen with me at all times, and apply it liberally. But I’ve never really understood what those SPF numbers meant, so I asked some sun care to break it down for me—and to tell me how to best apply the stuff so that I can make it through the summer without looking like a lobster.

Soaking up the sun ... safely

SPF stands for Sun Protection Factor, and it indicates a sunscreen’s ability to block UVB rays. The concept was pioneered at the Coppertone Solar Research Center in 1972; in 1978, the FDA published an SPF method based on Coppertone’s system, according to Dr. David Leffell, chief of Dermatologic Surgery and Cutaneous Oncology at Yale.

The numbers themselves stand for the approximate measure of time a person who has applied the sunscreen can stay out in the sun without getting burned. Say you get burned after 20 minutes in the sun without sunscreen; if properly applied (and reapplied), SPF 30 will allow you to stay in the sun 30 times longer without burning than if you were wearing no protection at all. So, theoretically, you should have approximately 600 minutes, or 10 hours, in the sun. But it’s not an exact science because the amount of UV light that reaches us depends on a number of factors, including cloud cover, the time of day, and the reflection of UV rays off the ground, so it’s generally recommended that you reapply sunscreen every two hours (or even sooner).

What gives a sunscreen a higher SPF comes down to the product’s formulation. “It’s possible that an SPF 50 might contain slightly more of one or more sunscreen active ingredients to achieve that higher SPF,” Dr. Patricia Agin, president of Agin Suncare Consulting, says. “But it’s also possible that the SPF 50 might contain an additional active ingredient to help boost the SPF performance to SPF 50.”

No matter what SPF your sunscreen is, you’ll still get a burn if it’s not properly applied. So let’s go over how to do that.

How to apply sunscreen

First, make sure you have a water-resistant, broad spectrum sunscreen—which means that it protects against both UVB and UVA radiation—with an SPF of at least 30. “Typically, you don’t have to buy sunscreen that has an SPF higher than that unless you have very sun sensitive skin,” Leffell says. “That’s a very small percentage of the population.” (Redheads, people with light eyes, and those who turn pink after just a few minutes in the sun—you’ll want to load up on SPF above 30.)

Twenty minutes before you go out to the beach or the pool, begin to apply your sunscreen in an even coat. “Don’t apply it like icing on a cake,” Leffell says. “I see these patients and they’ve got the tops of their ears covered with thick, unevenly applied sunscreen, and that’s not a good sign.” Sunscreen sprays will easily give you that even coat you need.

Whether you’re using lotion or a spray, when it comes time to apply, Leffell recommends starting with your scalp and face, even if you plan on wearing a hat. “Make sure you’ve covered the ears and nose and under the eyes,” Leffell says. “Then, I would move down to the shoulders, and make sure that someone can apply the sunscreen on your back beyond the reach of your hands.”

Other areas that are important that you may forget to cover, but shouldn’t, are the tops of your feet, the backs of your hands, and your chest. “We see it all the time now—the v of the chest in women has become a socially and aesthetically huge issue when they are 50 and beyond. Because even though they can treat their faces with all sorts of cosmetics and procedures, the chest is much harder, and they are stuck with the face of a 40-year-old and the chest of a 60-year-old. You want to avoid that using sunscreen.”

Another important thing to keep in mind: Water-resistant doesn’t mean waterproof. “I always tell patients to reapply every couple of hours while you’re active outdoors," Leffell says, "and always reapply when you come out of the water or if you’ve been sweating a lot, regardless of whether the label says water resistant."

Determining whether or not you’ve succeeded in properly applying your sunscreen is easy: “You know you’re applying your sunscreen properly if, after the first time you’ve used it, you haven’t gotten a burn,” Leffell says.

Agin has a caveat, though: "It’s not a good idea to think of sunscreens only as a way to extend your time in the sun," she says. "One must also understand that even before becoming sunburned, your skin is receiving UV exposure that causes other damage to the skin. At the end of the 600 minutes, you will have accrued enough UV to cause a sunburn—one Minimal Erythema Dose or MED—but there is pre-MED damage done to skin cells’ DNA and to the skin’s supporting structure of collagen and elastin that is not visible and happens even before you sunburn. These types of damage can occur without sunburning. So you can’t measure all the damage done to your skin by only being concerned about sunburn."

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us atbigquestions@mentalfloss.com.

An earlier version of this post ran in 2014.

What's the Difference Between Ice Cream and Gelato?

iStock/Getty Images/zoff-photo
iStock/Getty Images/zoff-photo

'Tis the season for beach reads, tan lines, and ice-cold desserts. You know it's summer when going to the local ice cream or gelato shop becomes part of your daily routine. But, what exactly is the difference between these two frozen treats?

One of the key differences between the two is butterfat. While ice cream's main ingredients include milk, cream, sugar, and egg yolks, the secret to making gelato is to use much less cream and sometimes little to no egg yolk. This leads to a much smaller percentage of butterfat in gelato. The FDA rules say that ice cream cannot contain less than 10 percent milkfat (though it can go as high as 25 percent) while gelato, much like soft serve, stays in the 4- to 9-percent range.

The churning method for both also differs, which affects the treat's density. Ice cream is churned at a much faster pace, leading to more air being whipped into the mixture. Ice cream's higher butterfat content comes into play here—due to all of that milkfat, the mix absorbs the air more readily. Gelato, on the other hand, is churned at a slower pace and absorbs far less air, creating a much denser dessert.

You also might have noticed that the serving style for the two treats aren't the same, either. In order to get those perfectly stacked ice cream scoops on a cone, buckets of ice cream must be stored at around 0°F to maintain its consistency, while the softer gelato is stored at a warmer 10°F to 22°F. Ice cream is then scooped into fairly uniform balls with the round ice cream scooper, whereas a spade or paddle is best for molding gelato into mound in a cup or a cone.

You can't really go wrong with either gelato or ice cream on a sweltering summer day, but there is one more difference to keep in mind while you debate which to get: taste. If you want a bolder flavor, you'll want to go with gelato. Because of the density of the cream and because there's less butterfat to coat your taste buds, gelato can seem to have more intensity to its flavors.

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