27,000pi
Grains are stored in silos and warehouse as well as grain elevators.
Grain is usually stored in a silo, a tall tower or pit, usually on a farm or property.
Grain
It depends on grain size, which can be as small as 0.004 inch or as big as 0.1 inch. If we take an average grain size of 0.02 inch diameter that is 0.00000043 cubic inch volume and a cubic foot is 1728 cubic inches then (not considering packing voids) that is 1728/.000000 = 4 billion grains!
The biggest bin can be split into a number of things. Amount of storage , height and diameter. As far as I know, there is one bin that wins two of the categories. It's a bin made by a company called Brock. It's 156 ft in diameter (across), 70 ft high at the peak and can hold op to 1.34 million bushel of grain. Another Brock bin that's only 132 ft across can be built as tall as 98 feet.
We use glass or metallic cans for that.
silo
It is the place where grain is stored.
Energy can is stored in many grains. It is in the grain itself and released by eating , which converts it to energy. Or by turning it to to gas by refining etc.
Larger less frequent grain elevators.
The number of grains of sand in a cubic inch can vary depending on the size of the grains. On average, there are about 1.5 million grains of sand in a cubic inch. This estimation is based on the assumption that the average grain of sand is around 0.5 millimeters in diameter. However, it's important to note that this number is an approximation and can vary.
The diameter of meteorites varies greatly, from the size of a grain of sand to the size of Mars (speculated).