Harvard’s Microbiotics Lab has been working on a robotic bee for a decade.
Now, thanks to electrostatic adhesion, the robotic bee can perch and take off again. Electrostatic adhesion is similar to rubbing a balloon on your head and sticking it to a wall.
The robotic bee can turn also turn the electric charge off to let go of whatever it has perched on. The ability to perch, or land, is needed to save energy.
At this time it can only perch on ceilings or overhangs due to the adhesion pad being on the top, but the researchers hope to update that in the future.