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.
Colcannon (Irish: cal cÃ¡l, ceannann meaning-white headed) cabbage is a Traditional irish dish mainly consisting of mashed potatoes with kale or. cabbageolcannon is traditionally made from mashed potatoes and kale (or cabbage), with milk (or cream), butter, salt and pepper added.