Romania center explores world's most powerful laser

"Ready? Signal sent!" In the control room of a research center in Romania, engineer Antonia Toma activates the world's most powerful laser, which promises revolutionary advances in everything from the health sector to space.

Plastic 'interceptor' tackles trash in Bangkok river

Black flies exploded into the air as plastic waste fell from bamboo conveyor belts into skips on a solar-powered barge attempting to remove rubbish from the main river of Thailand's capital Bangkok.

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