Psychological studies show that people tend to remember emotionally charged events more vividly while forgetting ordinary experiences. This “emotional memory effect” explains why we recall important moments clearly but struggle with daily details. Such a mechanism may have helped humans adapt by prioritizing memories linked to danger or survival.
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An electric eel’s tail contains specialized muscle cells (electrocytes) arranged like batteries; each adds ~0.15 V, and in series they can deliver 600 V. Discharging is energetically costly, requiring about a week of recovery without feeding.
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Test flights show that electric aircraft are well-suited for regional routes in islands or mountainous areas. They reduce costs and pollution and improve local acceptance due to their quiet and environmentally friendly design.
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