Car Seats: Fast Facts

Car seats: Get fast facts on car seat safety and easy-to-read explanations on harnesses the LATCH system and what to look for when buying car seats.

How Airbags Work

Statistics show that airbags reduce the risk of dying in a head-on crash by 30 percent. Learn the science behind the airbag, what its problems are and where the research is heading.

How Child Car Seats Work

Seatbelts save lives -- adult lives. For a seatbelt to do its job it must fit correctly, and on a small child a seatbelt is simply the wrong size. In this article, we'll examine the technology at work and find out how to choose the best child seat.

How Odometers Work

Mechanical odometers have been counting the miles for centuries. Although they are a dying breed, they are incredibly cool inside. Learn how this simple device tracks distance and find out about digital odometers.

How Red-light Cameras Work

The light turns red. You're alone at the intersection. There's not another car in sight. Do you run it? Read this before you answer.

How Seatbelts Work

Seatbelts save thousands of lives each year. How can a piece of fabric end up being the difference between life and death? What does a seatbelt actually do? Learn how seatbelts react in a crash.

How Speedometers Work

Speedometers have been around since the early 1900s when cars began to grow in popularity and (literally) outpace the horse-drawn carriage.

How Traffic Tickets Work

Traffic tickets are the bane of some motorists, but they exist to enforce driving laws and to encourage safe driving. Learn about traffic tickets including what's on a ticket what happens during a traffic stop and how to fight a ticket.

What if I never changed the oil in my car?

The oil in a car is a necessity and can leave your car lubricated and running smooth. But what happens if you never change it? And how long can you really go?

What if my brakes stopped working?

Most people can feel their brakes as they wear, and they know when it's time to get new ones. But what if there's a leak in your brake line or someone cuts the line altogether?

How do the automobile ignition keys with chips embedded in them work?

A friend of mine just bought a new car and it has a neat security feature. The ignition key has what looks like a microchip embedded in it. The owners manual says that without this chip the engine either will not start or will start and then die immediately. How does this microchip on the key prevent the engine from starting?

How does a laser speed gun work to measure a cars speed?

How does a laser speed gun work to measure a car's speed? How is it different from a radar gun?

How does a traffic light detect that a car has pulled up and is waiting for the light to change?

There is something exotic about the traffic lights that "know" you are there -- the instant you pull up, they change! How do they detect your presence?

SUV Safety

In this article, we'll look at the safety reputations of SUVs, find out what safety features to look for when purchasing an SUV and get some SUV driving tips.

Why are they replacing all of the traffic lights in my town?

In my town they are replacing all of the traffic lights with these new lights that look like they are made of hundreds of tiny bulbs. Why are they replacing all of the lights?