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.
The average annual cost of owning a cat is slightly lower at Â£1,028, but this could increase to annual cost of Â£1,270 in 15 yearsâ time â the average life expectancy of a pet cat in the UK.his would take the cost of owning a dog to nearly Â£18,500 in its lifetime. This research also doesn't take into account how much the dog cost to buy to start with-some would-be dog owners in the UK can expect to pay Â£700 or more for a pedigree pup who will often enjoy the best of everything, even when times are hard.