Doctors are taught that a properly conducted interview with a patient can provide valuable clues to the cause of what ails a person. This is sometimes referred to as "history taking." The same advice applies when a mechanic is trying to diagnose the reason for a car's symptoms. Unfortunately, the... (more) Here's a handy calculator from the University of Nebraska (UNL) to determine how long your day will be, based on latitude.
Daylight Hours Explorer... (more)