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.
Dog Food: $150 â 500. The cost of your dogâs food will depend on his size and what you feed him. The bigger the dog, the more he eats, and premium dog food is more expensive than off-brand kibble. You can save money with a generic food, but it could be at the expense of your dogâs health.
And one of those long-term impacts is the financial implications having a pet, especially a cat or a dog, entails â they do not come cheap. The average lifetime cost of owning a dog today stands at around Â£16,900 and for a cat Â£17,200, according to research by Sainsburyâs pet insurance. And it's set to get even more expensive. Cost of a pet: Cats and dogs will cost their owner Â£17k in their lifetime.