there are valves in the vessels that prevents backflow, just like in the viens
inertia
Assuming both boats are under sail, and both boats have adequate visibility, the position of the wind will determine which is the stand-on vessel and which is the give-way vessel. If each vessel has the wind on a different side, the one with the wind on the port side keeps clear. if both have the wind on the same side, the vessel nearest to the direction of the wind keeps clear.
The thread guide keeps the thread going straight in one direction.
The thread guide keeps the thread going straight in one direction.
only one I can think of is a comet that's been hurdled away from the sun and keeps going
DC = direct current, it is a steady charge that keeps going the same direction. AC = Alternating current, it is a charge that changes direction very quickly. The positive and negative keep switching.
By definition a line keeps going forever.
The most simple and practical design of a valve is a flap that keeps liquid from going into one direction, but allows it to freely flow in another direction. The name for this particular valve is called a check valve.
The heart is the organ that keeps the blood flowing. Valves in the heart ensure the flow is only in one direction.
The duration of Love Keeps Going is 1.5 hours.
my alarm keeps going of and wont start.
it keeps going and going and going and going no thats^ energizer's