'Pharaoh' is actually a Greek word that is based on an Egyptian word that meant 'great house'. When this word was first used, it referred to the palace of the king and its greatness, not just to the king himself. We use the word 'pharaoh' today to mean the ruler of ancient Egypt. the definition of pharaoh.
Rehabilitation (rehab) after a knee replacement is intensive. The main goal of rehab is to allow you to bend your knee at least 90 degrees-enough to do daily activities, such as walking, climbing stairs, sitting in and getting up from chairs, and getting in and out of a car.
The pitch of a staircase is how steep it is, specifically the angle from the same point on one step to the next one. Those who study stairs believe a pitch of between 20 and 50 degrees is safe, and being within the range of 30 to 35 degrees is best.