A scientific theory is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed, preferably using a written, pre-defined, protocol of observations and experiments.
Process Engineer Salary. A Process Engineer earns an average salary of $70,876 per year. A skill in Simulation is associated with high pay for this job. Most people move on to other jobs if they have more than 20 years' experience in this field. $52,970 - $97,247.
Of all engineering specialties, computer engineering jobs typically have some of the highest starting salaries. The BLS reported that in 2013, computer hardware engineers had a mean salary of $106,930. Hardware engineers in the 90th percentile for income made $154,810, while those in the 10th percentile made $64,620.