[ nathan ] Far too much information on how to cook the Perfect Boiled Eggs.
With very few exceptions, the temperature of a given spot in the food is proportional to the inverse square of its distance from the surface exposed to the heat source.
A word on imperial to metric conversion: a quart of water is pretty close to a litre of water. Temperatures: 170°F is about 76°C, 140°F = 60°C.