The English method of measurement is artificial. It was based upon the size of a foot of an English king as well as multiples of certain seeds to make an ounce. Both are variable. Besides, there are 12 ounces in a troy pound while there are 16 ounces in an avoirdupois pound.Metric, on the other hand, is natural. A meter is 1/10,000,000 of the distance between one of the poles and the equator. Everything in the metric system is based on multiples of 10.1,000 millimeters = 1 meter.1,000 meters = 1 kilometer.1,000 milligrams = 1 gram.1,000 grams = 1 kilogram.1,000 milliliters = 1 liter.1 liter of water weighs exactly 1 kilogram.Water freezes at 0ºC and boils at 100ºC, instead of 32ºF and 212ºF.I don’t know how many life forms can survive in 100ºC temperatures.How about soda pop companies, which changed from a 64-ounce bottle to a 2-liter bottle in the 1970s? 2 liters equals 67.6 ounces, or 3.6 ounces more. At the time, they didn’t change the prices.