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.
If your client is a technical guy, it will take him, say, one hour of Skype calling to understand how good you are. I run a startup web development company. My hourly rates as per my skills and expertise (for all clients, irrespective of the geographic location) are somewhat like: 1  PHP - $12 - $18. 2  Ruby on Rails - $20 - $30. 3  Java - $20 - $30. 4  PSD to HTML & Javascript - $13 - $18.