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Raymond "Ray" Kurzweil ( / ˈ k ɜr z w aɪ l / KURZ -wyl ; born February 12, 1948) is an American author, inventor, futurist , and director of engineering at Google . Aside from futurology, he is involved in fields such as optical character recognition (OCR), text-to-speech synthesis , speech recognition technology, and electronic keyboard instruments. He is the author of several books on health, artificial intelligence (AI), transhumanism , the technological singularity , and futurism .
MARTIN GREEN HAS BEEN GOING to solar conferences for more than 30 years.
SOLAR power has always had a reputation for being expensive, but not for much longer. In India, electricity from solar is now cheaper than that from diesel generators. The news - which will boost India's "Solar Mission" to install 20,000 megawatts of solar power by 2022 - could have implications for other developing nations too.
As a source of energy, nothing matches the sun. It out-powers anything that human technology could ever produce. Only a small fraction of the sun’s power output strikes the Earth, but even that provides 10,000 times as much as all the commercial energy that humans use on the planet.