Gaikai, headed by David Perry, has taken a different road from OnLive, which uses a dedicated application in effect to open a remote session with a data centre and deliver access to entire games.

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The key objections are that the centre is too big, too remote and the infrastructure to support it is not there.

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With the success of TES, the ISRO Satellite Centre in Bangalore will embark on manufacturing operational remote sensing satellites that can double as spy satellites.

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In addition, a real-world school will be built in India offering children a place to receive the remote lessons, and it well also serve as a research centre into self-directed learning.

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They can also provide vital information about health and education and create new economic opportunities for people who live in remote areas, often many miles from a bank, school or health centre.

ECONOMIST: Letters