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.
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. In contrast, those who have been around for five to 10 years earn a noticeably higher average of $62K. Web Developers who work for 10 to 20 years in their occupation tend to earn about $71K. Folks who have racked up more than 20 years in the field report incomes that aren't that much higher than less experienced individuals' earnings; the veterans make just $80K on average.