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 - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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