We've watched as a "pocket-sized drone dubbed the Nano Hummingbird" flitted around.

Now, here's another tiny robot flier, but this one mimics the movements of a jellyfish. New Scientist says it just may be "more stable in the air than insect-like machines."

The little machine was created by researchers at New York University. According to New Scientist, "the design should be especially useful for making centimeter-scale robots that drift through the air."

The Washington Post's Innovations blog writes that:

"Leif Ristroph wanted to build the 'simplest possible' flying machine. The applied mathematician at New York University glued together several tubes of carbon fiber to build this: a sphere with four wings attached to it that propels it as a jellyfish swims."The flyer is only about eight centimeters in diameter — small enough to fit in the palm of your hand — and its mass is only about two grams, the equivalent of two paper clips."

Copyright 2016 NPR. To see more, visit http://www.npr.org/.