Today’s Solutions: April 21, 2026

Physicist Marcelo Gleiser muses over the paradoxes of scientific progress.

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Germany’s coal mines are now Europe’s largest lake district

BY THE OPTIMIST DAILY EDITORIAL TEAM When the last miners left the open-cast lignite pits of eastern Germany’s Lusatia region, they left behind craters ...

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The sensory superpower that lets seals hunt in total darkness

BY THE OPTIMIST DAILY EDITORIAL TEAM When a fish moves through water, it doesn’t simply pass through and vanish. It leaves a trail of ...

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AI helps restore Rembrandt masterpiece that was disfigured 300 years ago

In 1715, three-quarters of a century after Rembrandt painted it, The Night Watch was greatly disfigured when it was moved from its original location ...

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A new way to stack bricks could help clean Bangladesh’s air

BY THE OPTIMIST DAILY EDITORIAL TEAM In the cool, dry winters of Bangladesh, the country’s 8,000-plus brick kilns roar to life. Coal-fed and open-air, ...

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