Scientific advancement: It's all in the wiggle. OK, it's a lot more complicated than that. But when a team of researchers at MIT unveiled their robotic fish Wednesday, one of the keys they emphasized ...

Key performance trade-offs revealed The robotic fish achieved a maximum swimming speed of 1.24 body lengths per second at 5 Hz in the tuna-like mode, while the anguilliform mode showed a sharp decline ...

The boat-shaped robot takes advantage of the same phenomenon – the Marangoni effect – used by some aquatic insects to propel themselves across the surface of water. A chemical reaction within a tiny ...