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.
Cost. The annual cost of a small dogâincluding food, veterinary care, toys and licenseâis $420. Make that $620 for a medium dog and $780 for a large pooch. This figure doesnât include capital expenses for spay/neuter surgery, collar and leash, carrier and crate.our dog can detect odors about a billion times better than you can. - The average lifespan of a dog varies from 8 to 16 years, depending on breed type, size, genetics and care.