Hypersonic flight could one day make long-haul travel as quick as a short movie. Researchers are testing how turbulence behaves at extreme speeds, a critical hurdle for designing these aircraft. Their laser-based krypton experiments suggest turbulence at Mach 6 behaves more like slower airflow than expected. The results could simplify hypersonic vehicle design and accelerate progress toward ultra-fast travel.
Autism Therapy Under Scrutiny: Private Equity and Rising Treatment Hours
A closer look at rising autism therapy hours, private equity incentives and Medicaid spending—and why care should be shaped by each child’s needs, goals and family circumstances.



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