But blood drops with long tails can tell a great deal about the direction, speed and angle of the blood's starting point.

VOA: special.2010.05.05

By varying the angle and direction of SAWs relative to the droplet, the internal streams can be made to flow in just about any direction.

ECONOMIST: Acoustic microfluidics

It is, for example, equipped with a rear-wheel steering system (Precision All-Wheel Steer) that allows the rear wheels to be pointed, independently, up to 2 degrees of toe-angle adjustment in either direction (in or out, negative or positive), for 4 degrees of articulation.

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They will also attempt to change the direction of Ikaros by altering the angle of the sail.

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