In the United Kingdom, a "quarter" is a term commonly used in the context of weight or mass, especially in agricultural and trade settings. A "quarter" in the UK refers to a quarter of a hundredweight (cwt).
In the United Kingdom:
1 quarter (UK) = 28 pounds (lbs)
So, when you see "quarter" used in the context of weight or mass in the UK, it generally means 28 pounds. This term is frequently used in the sale and trade of agricultural products and livestock, where quantities are often expressed in multiples of quarters. It's important to note that the UK quarter is different from the US quarter, which is 25 pounds.
The exagram (Eg) is a unit of mass in the metric system. It is equal to one quintillion (10^18) grams. The exagram is an extremely large unit of mass and is primarily used in scientific contexts when dealing with colossal quantities of matter, such as in astrophysics or geology.
To give you an idea of the scale involved, one exagram is equivalent to 1,000,000,000,000,000,000 grams or 1,000,000,000 metric tons. This unit is rarely encountered in everyday life but is valuable when measuring the mass of massive celestial bodies, geological formations, or other incredibly large objects in the universe.