You've heard it a hundred times: change the batteries in your smoke detector! So, have you done it yet? We won't nag you about it (though it is important), instead we'd like to ask you something you may not have heard a hundred times: do you know what kind of smoke detector you have? The answer is, for most home owners, probably not. Moreover, is it important to know? Well, yes, it is because the type of smoke detector you have, and the sensor it contains inside, detects

Decades ago most of the materials found in homes and businesses were made of natural materials, such as cotton and wood. But today the...