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.
Sushi, a favorite Japanese cuisine, has become extremely popular in the U.S. in recent years and consists of raw fish and cooked vinegared rice. The origin of sushi began in Southeast Asia, but todays version was created by Hanaya Yohei (1799-1858) as a form of fast food to be eaten soon after purchase with ones hands.The first appearance of Sushi in America was in 1953, served at the Japanese Embassy in Washington.he origin of sushi began in Southeast Asia, but todays version was created by Hanaya Yohei (1799-1858) as a form of fast food to be eaten soon after purchase with ones hands. The first appearance of Sushi in America was in 1953, served at the Japanese Embassy in Washington.