A Doctor of Philosophy degree (often abbreviated Ph.D. , PhD, D.Phil. , or DPhil) or a Doctorate of Philosophy, from the Latin Doctor Philosophiae, is a type of doctorate awarded by universities in many countries. Doctor of Philosophy degree (often abbreviated Ph.D. , PhD, D.Phil. , or DPhil) or a Doctorate of Philosophy, from the Latin Doctor Philosophiae, is a type of doctorate awarded by universities in many countries.
A furlong is a measure of distance in imperial units and U.S. customary units equal to one-eighth of a mile, equivalent to 660 feet, 220 yards, 40 rods, or 10 chains. Using the international definition of the inch as exactly 25.4 millimetres, one furlong is 201.168 metres.
, Landlord of a few houses. 1 acre is defined to be 1 chain (66 ft) by 1 furlong (660 ft). So an acre is 66 ft * 660 ft = 43560 sq ft. The international definition is exactly the same area, but in square meters: 4046.8564224 sq m.