Why Are Semi-Trucks Called 18-Wheelers? (And How Many Wheels They Really Have)
You may have heard the term 18-wheeler and wonder where the name comes from. It turns out those 18 wheels have an important purpose. Here's what we know.
Read MoreKR Manalo
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Stories By KR Manalo
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Why You Should Never Attempt To Repair A Broken Charger Yourself
If your charger breaks, you shouldn't try to fix it yourself. It holds a charge even when unplugged and tampering with it could give you a nasty shock.
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How To Tell If Your Tools Are Insulated Before Using Them For Electrical Work
It's important to practice good safety measures when working around electricity. Here are the key signs and stamps on insulated tools to know they're safe.
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The World's Strongest Heavy Lift Helicopter Can Carry A Staggering Amount Of Weight
Helicopters are famous for their ability to move personnel and cargo where airplanes can't, but the world's strongest helicopter can lift an impressive load.
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Which Engine Does Arch Motorcycle Use In Its Bikes?
Founded by Gard Hollinger and Keanu Reeves, ARCH Motorcycle aim to offer a perfect balance between cruiser and sport bike. Which engines do its bikes use?
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Can A Tool Socket Adapter Affect Torque When Using An Impact Wrench?
If you're using an impact wrench, you're aiming to use a device that gives you plenty of torque, but will you sacrifice that torque by using a socket adapter?
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What Is A Military Cyber Command And What Does It Do?
Warfare now includes cyberspace as one of its main battlefronts. Meeting the challenge is the U.S. Cyber Command. But what is it and what does it do?
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Why Helicopters Have 2 Control Sticks (But Airplanes Only Have One)
Ever wondered why helicopters have two control sticks while airplanes usually have one? Learn how helicopter controls work and why they’re different.
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Which Country's Military Flies The Most MiG-29 Fighter Jets?
The MiG-29 is an impressive and fearsome aerial threat, but exactly which country has the most access to these fighter jets and how many is that?
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Is Tire Shine Bad For Your Tires? What You Need To Know Before You Buy
Using tire shine is part of regular car maintenance, but are there any downsides? Let's find out whether tire shine is bad for your tires or not.
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What Is The Oldest Kenworth Semi-Truck Still In Production Today?
Kenworth is one of the oldest truck manufacturers in the United States. Today it has 14 different models with one that's been produced since the 1960s.
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How Fighter Pilots Evade Missiles And Live To Tell The Tale
As technology continues to expand, you may wonder how fighter pilots are still able to dodge sophisticated missiles. Here are some of the techniques they use.
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What Do The Bomb Markings On The Side Of Military Aircraft Mean?
If you've ever seen vintage bombers from World War II, you've probably noticed they have bombs painted on them near the nose. What are those?
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How Do Fast Chargers Know How Much Power To Deliver To Your Device?
Fast charging can recharge your phone or tablet in half the time, but how does it really work? Let's find out how a fast charger picks the right power delivery.
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Can You Add Tools To A Swiss Army Knife?
Swiss Army knives are built to tackle a variety of in-the-moment challenges, but can you add or swap out the tools that come on it by default?
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When (And Why) Did Mack Stop Making Fire Trucks?
Mack fire trucks were highly regarded for their performance and durability. Here's why the legendary manufacturer stopped making fire apparatus.
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What Are The Belts On Military Tanks Called And How Do They Work?
From the beginning, military tanks have relied on a specially designed propulsion system. Learn what this belt system is called and how it works.
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How Much Weight Can You Tow With A Bumper Hitch?
Knowing how much a tow hitch can handle is important when figuring out what to load into your trailer. Here's how much weight a bumper hitch can handle.
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Hex Key Vs. Allen Wrench: Is There A Difference?
Allen wrenches and Hex keys seem very similar to each other. We break down the relationship between the two and some other innovations that have come since.
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Why Nevada Was Nuked More Times Than Any Other Place On Earth
Nevada was used as a location for nuclear weapons testing more than 900 times. Why was this place nuked more than anywhere else in the world?
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What's An Uninterruptible Power Supply (UPS) & What Is It Used For?
Power outages are common throughout the world, which is a big problem when the majority of the modern world depends on electricity. That's where a UPS comes in.
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Why Are So Many Cars In Nevada Missing License Plates?
You may be wondering why so many cars in Nevada are driving without license plates. It turns out there are quite a few reasons. Here's what we know.
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How Far Can A US Navy Destroyer Ship Shoot?
A U.S. Navy Destroyer is built for eliminating threats to itself or its fleet and it has a variety of weapons to do so. Here's how far it can shoot.
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What Makes Airport Runway Pavement So Different From Everyday Roads?
Airport runways and regular highways share some similarities, but the conditions both are built for are quite different, and so is the composition.
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What Does TBO Mean In Aviation, Why Is It Important For Airplane Safety?
Airplanes undergo stress with each flight from speed, altitude, temperature and atmospheric changes, and more. Learn why TBO is so important in aviation.
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How Anti-Submarine Rockets Work To Neutralize Their Target
Submarines aren't the only vessels in the ocean that combat submarines. Many surface ships also counter them, but they use anti-submarine rockets.
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How To Find Your Motorcycle's Engine Number (And Why You Might Need It)
You may not even realize your motorcycle has an engine number, but it does, and it's really important to know where to find it. Here's why you need to know it.
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