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Long-held belief about shape of fish schools overturned—fish swim in 3D 'ladder' formation, not flat diamonds
For 50 years, scientists believed that schools of fish would save the most energy by swimming in flat diamond formations.
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ATR outlines potential mild-hybrid engine architecture for future Evo twin-turboprop
ATR and Pratt & Whitney Canada will investigate a "mild hybrid" version of PW127XT engine for the airframer's proposed Evo ...