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.
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.
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?