Last week we posted a map of the Rim fire's progression into Yosemite National Park from Inciweb. That map (see below) uses random, qualitative colors to represent the area burned by the fire each day ...

Each kind of commercial and emergency vehicle follows a certain color code or symbol. For instance, you will find a snake symbol on almost all ambulances, and the color of the school buses is always ...

Red, yellow, violet— fire hydrants come in many different colors. But it's not for decoration. These colors have an important meaning that could just save your life one day. Following is a transcript ...

A: The city's Public Works Department has underground mains that supply water throughout the city. These mains have different sizes that can supply varying amounts of water. For the Houston Fire ...