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That vast majority of quadcopter drones produce thrust in a very straightforward way: the propellers push air downwards at a high speed which creates lift. But that doesn’t mean other means of propulsion can’t be used. YouTuber Tom Stanton often experiments with unconventional drones and methods of propulsion, and in his newest video he has made a drone fly using the Coandă effect.

The Coandă effect, named after Romanian inventor Henri Coandă, describes the propensity for fluids — including air — to cling to convex surfaces as they move across them. That’s because a low pressure zone is created around the curved surface, and the atmospheric pressure of the surrounding air pushes the moving air along. This effect can be used to redirect the flow of air, which is how Stanton wanted to provide thrust for a drone. Instead of having propellers that push directly down on the air, he used an impeller to push air outwards horizontally. The impellers are mounted on top of domes, and the Coandă effect pulls the air downwards to provide thrust.

Continue reading “Tom Stanton Builds a Drone That Flies Using the Coandă Effect” »

Drone racing an ambulance shows how drones could speed up medical care.

The U.S. Defense Advanced Research Projects Agency (DARPA) kicked off the Subterranean Challenge in December 2017, with the goal of equipping future warfighters and first responders with tools to rapidly map, navigate, and search hazardous underground environments. The final winner of the four-event competition won’t be selected until 2021, but Team Explorer from Carnegie Mellon University and Oregon State University managed to best rivals for the initial prize.

On four occasions during the eight-day Tunnel Circuit event, which concluded today, each team deployed multiple robots into National Institute for Occupational Safety and Health research mines in South Park Township, Pennsylvania, tasked with autonomously navigating mud and water and communicating with each other and a base station for an hour at a time as they searched for objects. Team Explorer’s roughly 30 university faculty, students, and staff members leveraged two ground robots and two drones to find 25 artifacts in its two best runs (14 more than any other team), managing to identify and locate a backpack within 20 centimeters of its actual position.

“Mobility was a big advantage for us,” said team co-leader Sebastian Scherer, associate research professor in Carnegie Mellon’s Robotics Institute, in a statement. “The testing [prior to the event, at Tour-Ed Mine in Tarentum, Pennsylvania] was brutal at the end, but it paid off in the end. We were prepared for this … We had big wheels and lots of power, and autonomy that just wouldn’t quit.”

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Continue reading “Coanda Effect Drone Propulsion” »

Robots are about to go underground — for a competition anyways.

The Defense Advanced Research Projects Agency (DARPA), the branch of the U.S. Department of Defense dedicated to developing new emerging technologies, is holding a challenge intended to develop technology for first responders and the military to map, navigate, and search underground. But the technology developed for the competition could also be used in future NASA missions to caves and lava tubes on other planets.

Continue reading “NASA Robots to Compete in Underground Challenge in Mining Tunnels” »

Nevertheless, to date, most of the wealth generated by advances in A.I. and robotics has been acquired by the executives of technology companies. It’s time for the benefits of the A.I. revolution to be broadly distributed through an expanded social safety net.

Unfortunately, members of Congress are taking the opposite path and have proposed cuts to a range of social programs. Several hundred thousand people arrived in Washington on Saturday to protest these cuts. During the demonstration, masked agitators threw rocks at the autonomous drones deployed for crowd control; in response, drones dispensed pepper spray on the protesters below, causing a stampede. More than 20 people were injured and treated at local hospitals; one protester died of his injuries on Monday. The police detained 35 people at the scene; 25 more arrests have been made since then, after authorities used facial recognition technology to identify protesters from surveillance video.

Punishing the poor who were harmed by economic disruptions has been a mistake repeated throughout American history. During the Industrial Revolution, machines displaced many artisans and agricultural workers. To deter these unemployed workers from seeking public relief, local governments set up poorhouses that required residents to perform hard labor. And between 1990 and 2020, the federal government — and some state governments — repeatedly cut social program spending even as middle-class jobs disappeared as a result of outsourcing and automation. Workers who didn’t have the skills to thrive in the knowledge economy were resigned to join the underclass of service workers.

The Defense Advanced Research Projects Agency (DARPA) is experimenting with using a swarm of autonomous drones and ground robots to assist with military missions. In a video of a recent test, DARPA showed how its robots analyzed two city blocks to find, surround, and secure a mock city building.

DARPA conducted its test back in June in Georgia, featuring both drones and ground-based robots. The demonstration was part of DARPA’s OFFensive Swarm-Enabled Tactics (OFFSET) program, which is designed to eventually accompany small infantry units as they work in dense urban environments, and could eventually scale up to 250 drones and ground robots. The test back in June was the second of six planned tests, which DARPA says will increase in complexity as they happen over the next couple of years.

The Navy sent its expeditionary fast transport ship USNS Spearhead to sea to experiment with a number of cutting-edge technologies last week, including MartinUAV’s novel V-Bat drone. V-Bat is capable of infrastructure-independent vertical takeoff and landings while also retaining the high efficiency of a fixed-wing aircraft for long-endurance missions. Seeing as it can be launched and recovered in a nine square meter area and even in dense urban terrain, as well as on the tight decks of ships, the drone could have a lot of applications in the military, law enforcement/first responder, industrial, and environmental monitoring sectors.

The parcel carrier said Tuesday it had applied to the Federal Aviation Administration for certification of drone flights through the company’s recently formed subsidiary called UPS Flight Forward Inc.

The certification if approved, would allow drone flights beyond an operator’s visual line of sight, at night and without limit to the number of drones or operators in command, the company said. Such flights are highly restricted in the U.S.

The FAA is working out the regulatory framework to govern commercial uses of unmanned aircraft, which has been generally restricted to flights below 400 feet and within sight of an operator on the ground.