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Q.1581

Image: Bill Gates

In this photo published in Jan 2015, Bill Gates is seen drinking water made by "Omniprocessor", a machine that recycles it from a very unusual source material. This is part of his foundation's work to 'reinvent' a part of most households.

What is this material?

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This day last year: Q.1216

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Q.2336

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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