Sunlight-powered purifier could clean water for the impoverished

Sunlight-powered purifier could clean water for the impoverished

Sunlight-powered purifier could clean water for the impoverished One-tenth of the world’s population lacks clean water. Now, researchers report they have developed a cheap solar still, which uses sunlight to purify dirty water up to four times faster than a current commercial version. The raw materials cost less than $2 per square meter. The technology will “allow people to generate their own drinking water much like they generate their own power via solar panels on their house roof,” says Zhejun Liu, a visiting scholar at the State University of New…

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Jezero crater most popular scientific target on Mars for NASA’s 2020 rover

Jezero crater most popular scientific target on Mars for NASA’s 2020 rover

Jezero crater most popular scientific target on Mars for NASA’s 2020 rover Update: Following closed afternoon meetings at the conclusion of a scientific advisory session on 10 February, NASA announced the official final 3 sites under consideration for the Mars 2020 rover. As expected, Jezero and Northeast Syrtis were put forward. But rather than forwarding along Eberswalde or Mawrth Vallis, two other top candidates, the 2020 rover team stated that Columbia Hills, a site previously explored by the Spirit rover, would be considered as the third option. Here is our initial…

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