The 'Dronut' is a Cylindrical Drone Straight Out of Science Fiction
The Cleo Robotics Dronut is the world's first bi-rotor ducted drone that makes it look like something straight out of science fiction. The Boston-based company that specializes in unconventional robotic systems has released a drone that sports an unconventional design and capabilities which allow it to access spaces that ordinary drones can't navigate, such as confined rooms and or close to people.
https://petapixel.com/2021/11/22/the-dronut-is-a-cylindrical-drone-straight-out-of-science-fiction/