Bernoulli's principal states that as velocity of a fluid increases, the static pressure decreases. I wonder if the reverse order can also happen. For example, if there is a pipe laid on the side of a mountain that is 3000 ft high. The bottom end of the pipe would be exposed to pressure at sea level, while the top would be exposed to a pressure much lower than sea level. If we apply Bernoulli's equation, the indicated velocity is quite high. Yet intuitively, I can't believe this could be true. How should I look at this concept?