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The world´s largest dam – level 3
05-07-2021 07:00
The giant Baihetan hydropower plant in China opens for...A Theme Park Is Changing – level 3
13-11-2020 15:00
The coronavirus pandemic has impacted all industries including theme...NASA Makes Ventilator – level 3
01-05-2020 15:00
NASA has developed and successfully tested a new high-pressure...
