Most metals are good conductors of heat and they are solids at room temperature. Mercury is the only one in liquid state at room temperature, and has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. This is the reason behind mercury and alcohol being used in thermometer. Some of the principles of the thermometer were known to Greek philosophers of two thousand years ago.
Veterinary/Medical costs: $160 â 670. The cost of spaying or neutering a dog is $50-200 depending on the size of the dog and whether there are health conditions that can complicate the surgery. A routine veterinary exam runs from $45-150. The cost of puppy vaccinations and boosters is $20-150.
The following items reflect the average costs of properly caring for a 40-50 lb. dog. Larger dogs cost a bit more, small dogs cost a bit less. This list is for information purposes only. 1  $20 per month ($240 per year) for a premium food such as Science Diet, Iams, or Pro Plan (costs based on 40 lb. bags of food, 20 lbs.he following items reflect the average costs of properly caring for a 40-50 lb. dog. Larger dogs cost a bit more, small dogs cost a bit less. This list is for information purposes only. 1  $20 per month ($240 per year) for a premium food such as Science Diet, Iams, or Pro Plan (costs based on 40 lb. bags of food, 20 lbs.