Despite decades of technological progress, robots still can’t move as smoothly as humans – they drop objects, and struggle to pick them up properly. Scientists have been trying to teach robots to move ...

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Abstract: Nonlinear ultrasonic testing is capable of sensitively detecting second harmonic waves generated by micro-cracks in materials. However, the inherent second harmonics of experimental system ...

Abstract: Key requirements to boost the applicability of ultrasonic systems for in situ, real-time operations are low hardware complexity and low power consumption. These features are not available in ...

Exciting new research is investigating how boobies (birds of the genus Sula) may be able to reduce the potentially lethal impact of their high-speed vertical dives by creating a cushion of ...

Apr. 10, 2026 Scientists have proposed a surprising new way to detect gravitational waves—by observing how they change the light emitted by atoms. These waves can subtly shift photon frequencies in ...