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from the hub to the spigot
A spigot is a name for the pipe where water comes out of the plumbing. There is usually a handle that when turned can stop or start the flow of the water.
fuel filters have an arrow printed on them indicating the direction of the flow.
A device for controlling the flow of liquid, as from a pipe; tap
flow to
Arrow/flow towards engine.
One way to describe electricity to a lay person is that of a large vat full of water with a spigot at the bottom. The water in the vat represents the voltage potential of the source of the electricity. The amount the spigot is open represents the resistance and the flow of water out of the spigot represents current flow. As you open the spigot more the resistance decreases and the potential (the water) is depleted over time. In this example you could say that the potential was somewhat analogous to mass in a physical sense.
in which direction does the river Shannon flow?
Blood flow doesn't change direction. They always head for the same direction.
Downward, Downriver, Downhill, the direction gravity pulls everything.
get a tube have someone else on the other side and your rear on the other. Get burritos from Taco Bell eat them and tell by the guys face
resisters can face either way, diodes direction matters as a diode will stop currant flow in one direction and allow it to flow in the opposite direction.