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

There's also a handful of elements that we seldom see in these apps, such as a direction-relative wind indicator, optional motion-driven navigation and visual themes.

ENGADGET

This ETF is designed to move double in the opposite direction of the euro relative to the dollar.

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You can also play the cratering yen via the YCS, which moves double in the opposite direction of the Japanese currency relative to the U.S. dollar.

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If two stockmarket indices always move linearly in the same direction at the same time, and the relative size of their movements is always the same, they have a perfect correlation of 1.

ECONOMIST: Unscrambling correlation

No, of course, no one knows whether this will continue into the future but those relative prices are, and have been, moving in the wrong direction for cloud computing over recent years.

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Relative to mutual funds, Exchange traded funds (ETFs) are a step in the right direction.

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