.They are dangerous unless very small,. . Those rotating blades are like little knives, and if a drone hits you at top speed (or worse yet when both you and the drone are moving) it is going to do some damage.
I saw a video of drones being used indoors like valets. Then had a little circular cage around the blades.
I wonder who makes the components of these nifty little new drones the government is creating. (And if they even have chips, or just circuit boards — “With no motor and only about 10 parts, the Cicada resembles a paper airplane with a circuit board.”)
Fits into the palm of a hand, flies silently, can go 46 mph, carry a microphone, looks like a bird, — “they are robotic pigeons.”
US military scientists have invented a miniature drone that fits in the palm of a hand, ready to be dropped from the sky like a mobile phone with wings.
The “micro air vehicle” is named after the insect that inspired its invention, the Cicada, which spends years underground before appearing in great swarms, reproducing and then dropping to the ground dead.
“The idea was why can’t we make UAVs (unmanned aerial vehicles) that have the same sort of profile,” Aaron Kahn of the Naval Research Laboratory told AFP.
“We will put so many out there, it will be impossible for the enemy to pick them all up.”
The “Cicada”, short for Covert Autonomous Disposable Aircraft, was designed to be smaller, cheaper and simpler than any other robotic aircraft—but still able to carry out a mission in a remote battlefield.