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.
Norwegian Vikings sailed west across the Atlantic Ocean to Iceland and Greenland. About AD 1000, Vikings sailed to North America and started a settlement, though it did not last long. Danish Vikings went to France and founded Normandy ('Land of the North-men').Danish Vikings also sailed south around Spain, and into the Mediterranean Sea. Swedish Vikings roamed along rivers into Russia.he parts of Britain where most Vikings settled were northern Scotland and eastern England. For 500 years, from about AD 900, Vikings ruled the north of Scotland, the Orkney and Shetland isles and the Hebrides islands off the west coast. In Ireland, Vikings founded the city of Dublin.