A mercury switch (also known as a mercury tilt switch) is a switch which opens and closes an electrical circuit through a small amount of liquid mercury.Contents.he envelope may also contain air, an inert gas, or a vacuum. Gravity is constantly pulling the drop of mercury to the lowest point in the envelope. When the switch is tilted in the appropriate direction, the mercury touches a set of contacts, thus completing the electrical circuit through those contacts.
Irish stew is the product of a culinary tradition that relied almost exclusively on cooking over an open fire. It seems that Irish stew was recognized as early as about 1800.
  Here are some traditional Irish cheeses:   * Mulchan-A farm cheese made from buttermilk  * Ryefield-An unusual Cheddar, matured and enrobed in a black film  * â¦ Blarney-A semi-hard, cow's milk cheese witha reddish color.Blarney is also caled Irish Gruyere due to its holes.aking the world better, one answer at a time. Great with fruit chutneys, toasted nuts and fresh or dried fruit, or served on apple pie. Pairs well with sweet, fruity white wines.