They altered the deal on Vader's helmet (jpeg & gif comparison) (self.StarWars) submitted 4 months ago by pldkn. In a previous Japanese trailer, we could see Darth's menacing pose as he turns to the camera - but mostly I saw his awkward neck situation. In a new Chinese trailer, they show the same shot again, but this time it's obviously edited. No more weird neck situation, much more sinister looking indeed.
Air parcels, in a horizontal air pressure gradient, flows in a direction to eliminate the pressure gradient. The force that causes air parcels to move as the consequence of an air pressure gradient is known as the pressure gradient force and always acts directly perpendicular to isobars and toward lowest pressure.
Whenever there is a difference in pressure between two locations fluid flows from the region of high pressure to that of low by bulk flow. The heart causes blood to flow by creating a mean arterial pressure that is greater than the pressure in the veins.Hence, a pressure gradient drives the blood from the arteries to the veins. As blood flows from the arteries to the veins the pressure decreases. This decrease in pressure is called a pressure drop.The pressure drop is greatest in the arterioles and greater in the systemic compared to the pulmonary circuit.his is because the pressure at the other end is the central venous pressure which is approximately 2-8 mm Hg and very close to 0 mm Hg. In a similar way the pressure gradient in the pulmonary circuit is about 15 mm Hg which is about equal to the mean pulmonary arterial pressure.