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.
Rating Newest Oldest. Best Answer: There is definitely no specific animal which is our national animal. However,the chicken, the greyhound, the Irish Hare (a breed only found in Ireland) the bull, the salmon and the elk (large deer) all featured on our old coins.The reason people think it is the stag is that it was a male elk on our one punt (irish pound) coins. Our national emblem is the shamrock.owever,the chicken, the greyhound, the Irish Hare (a breed only found in Ireland) the bull, the salmon and the elk (large deer) all featured on our old coins.