Sound decibels are measured on a logarithmic scale, it's not linear. Other common logarithmic scales are: the pH scale for measuring acidity and alkalinity, and the Richter scale for measuring earthquakes.
Doubling the noise (sound energy) increases the number of decibels by three. If one generator makes 57 decibels, then two generators will make 60 decibels. Doubling that 2 x 2 = 4 generators would make 63 decibels. Doubling that 2 x 4 = 8 generators would make 66 decibels. Doubling that 2 x 8 = 16 generators would make 69 decibels, etc.
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Today's Featured Article - Fasteners: The Nuts and Bolts of Nuts and Bolts - by Curtis Von Fange. The nuts and bolts of nuts and bolts is an interesting and essential piece of knowledge that applies to our older tractors. An improperly torqued capscrew on an engine head or a shear bolt that is too hard on the driving shaft of a bushog can create havoc and make an expensive and uncalled for repair. Let�s examine the purpose and design of these fasteners in order to ensure their proper use. Fasteners are probably one of the aspects of mechanics that is given the least amount of thought.
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