Fracking or hydraulic fracturing is a method utilized by oil and gas companies to increase production of oil or gas from a well that would otherwise exhibit a low flow rate usually due to the geologic rock formation being too dense to allow for the economic recovery of hydrocarbons.
The Vikings lived in Scandinavia (mainly Norway, Sweden and Denmark), and in Iceland. They ventured (and proliferated) as far as Italy and the Mediterranean, but more commonly sailed to Ireland, Northern France, England, and even North America. Norway, Sweden, Denmark.
Throughout the Northern lands in the Viking age, people lived in longhouses (langh s), which were typically 5 to 7 meters wide (16 to 23 feet) and anywhere from 15 to 75 meters long (50 to 250 feet), depending on the wealth and social position of the owner.