there is one on each eyelid close to the medial canthus. Each drains tears from the conjunctival sac into the lacrimal duct in the same eyelid. The tears then pass to the lacrimal sac and into the nasolacrimal duct. See also punctum.
1 Cubic Foot = 0.0283168466 Cubic Meters. There are 0.0283168466 cubic meter in a cubic foot, because one foot equals to 0.3048 meters and the volume of a cube is calculated by multiplying the length of a side by itself twice, that makes 0.3048 * 0.3048 * 0.3048 = 0.0283168466 cubic meter in a cubic foot.
A cubic meter is written m3. It is a unit of volume, which measures space in three dimensions. You can use cubic meters to measure the amount of air in a room, or the amount of water in an aquarium. A cubic meter is an amount of volume equal to a cube one meter long, one meter wide, and one meter tall. Similarly, a cubic foot (ft3) is equal to a cube one foot long, one foot wide, and one foot tall. Multiply cubic meters by 35.3 to get cubic feet. One cubic meter can fit 35.3 cubic feet inside of it.