Tagged: The Economist

“Pack Power” in The Economist

There are evolutionary advantages to living in a social group. Groups cooperate to hunt large prey, rear young, and defend territory. Group members experience reduced exposure to predation (safety in numbers), easier access to reproductive partners, and a rich learning environment. There are also evolutionary disadvantages to living in a social group, including increased exposure to disease and parasites…one would think. However, ecologists are learning this might not be a true in all cases.

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“Aerial Jellyfish” in The Economist

A recent issue of The Economist included an article in the technology section titled “Aerial jellyfish.”  The article praises NYU researchers for their design of a tiny, robotic flying machine inspired by a jellyfish.  The flying robot has four wings, each of which is a few centimeters-long and leaf-shaped.  Opposite wings beat simultaneously and out of phase with the other pair of wings to provide lift.  This design proves to be more dynamically stable than past designs for tiny flying robots modeled after birds and insects.  The video below shows the robot in action.

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