The principle of the machine working, and working reliably is very important.

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It could, in principle, mean that more people are working and earning enough so that fewer people need to enter the work force.

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All secondary headteachers agreed in principle to develop a working group to explore the benefits and efficiencies of implementing the 33-period week.

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That principle is that economic growth provides vastly greater benefits for working people and the poor than redistribution.

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In principle, the tri-partite structure of three working groups encompassing basic science, adaptation and economics should produce a relatively coherent whole - more so, and with a more impressive imprimatur, than if each were assessed on its own, perhaps against the backdrop of turf wars.

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As Oculus' full-time principle scientist, LaValle will be working on things like sensor fusion, magnetic drift correction, and kinematic modeling.

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