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This plane is called the "Solar Impulse", and an experiment being conducted at the École Polytechnique Fédérale de Lausanne, financed by several private entities.

In June 2012, it completed a trip from Madrid to Rabat, thus being the first of its kind to successfully complete an inter-continental flight. What is unusual about this aircraft?

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This day last year: Q.332

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In Jan 2017, Finland became the first country in Europe to officially experiment with this socio-economic concept. Similar experiments are scheduled for many Dutch cities and the Canadian city of Ontario in 2017. In the case of Finland, the figure is 560 Euros a month. What concept?

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