When estimating the cost for a project, product or other item or investment, there is always uncertainty as to the precise content of all items in the estimate, how work will be performed, what work conditions will be like when the project is executed and so on. These uncertainties are risks to the project.Some refer to these risks as known-unknowns because the estimator is aware of them, and based on past experience, can even estimate their probable costs. The estimated costs of the known-unknowns is referred to by cost estimators as cost contingency.hese uncertainties are risks to the project. Some refer to these risks as known-unknowns because the estimator is aware of them, and based on past experience, can even estimate their probable costs. The estimated costs of the known-unknowns is referred to by cost estimators as cost contingency.
In Europe, the Nordic countries have a sauna tradition. The Finnish sauna culture is well established, there are built-in-saunas in almost every house in Finland. The oldest known saunas in Finland were made from pits dug in a slope in the ground and primarily used as dwellings in winter.
Where Did Sushi Come From? When we think of sushi, we think of raw fish served in a wrap of seaweed and lettuce. But originally, thatâs not what sushi was. Sushi has been served in Japan as far back as the 8th century, but it was very different. It was narezushi, which translates to âfermented sushi.â This fermented sushi was used to preserve fish by placing the meat in a wrap of fermented rice. Later, when the fish was eaten, the fermented rice wrap was thrown away.