In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries gravitational force. Thus string theory is a theory of quantum gravity.
Their average web application development cost is around $500K and their staff or contractors' salary is in the six figure plus range. Their proposals are usually based on a lot of fluff with the development rate ranging from $400 - $800 per hour. These types of companies focus on custom development.
Pay by Experience Level for Web Developer. Median of all compensation (including tips, bonus, and overtime) by years of experience. Experience seems to be a major factor in determining the incomes of Web Developers. Respondents with less than five years' experience take home $50K on average.