The ETH Zurich quadcopter folks have added to their already impressive collection of videos of cooperative, autonomous quadcopters doing exciting things (previously) with this video of the adorable little gizmos throwing and catching balls together.
Cooperative Quadrocopter Ball Throwing and Catching - IDSC - ETH Zurich
To toss the ball, the quadrocopters accelerate rapidly outward to stretch the net tight between them and launch the ball up. Notice in the video that the quadrocopters are then pulled forcefully inward by the tension in the elastic net, and must rapidly stabilize in order to avoid a collision. Once recovered, the quadrotors cooperatively position the net below the ball in order to catch it.
Because they are coupled to each other by the net, the quadrocopters experience complex forces that push the vehicles to the limits of their dynamic capabilities
John Scalzi’s on tour with his new novel, The Collapsing Empire: he’s posted a list of ten things every touring author knows, and very few other people ever get to see.
Steven Boyett writes, “Humble Bundle has released a unicorn-themed Bundle, with proceeds to benefit the World Wide Fund for Nature and Fauna & Flora International. For as little as $1.00, you can get Ariel, by Steven R. Boyett (full disclosure: that’s me); Unicorn Mountain, by Michael Bishop; Homeward Bound, by Bruce Coville; and Unicorn Triangle, […]
With less than a week to go until the debut of Walkaway, my next novel for adults, Portland’s Powell’s Bookstore has run a long Q&A with me about the book, my writing habits, my favorite reads, and many other subjects.
Even the most expensive pair of hi-fi headphones can’t match the feeling of bass rumbling through your body at a live show. That’s why music aficionados designed The Basslet, an accessory that reproduces that sensation from your wrist. Does it make your whole body shake with deep subs? Not really, because that would be terrifying, but […]
They probably just sleep a lot. But still, you can remotely keep an eye on them when you’re at work and missing them deeply with this HD monitor from Kodak.If you have a new puppy that destroys everything in sight, or you just want to be a little more security-conscious, this WiFi camera is a […]
Thinking of a business idea is the easy part. Doesn’t even have to be a “good” idea, you can still get people to throw money at a non-existent venture, but to do that you need to at least have something even resembling a viable business plan. Why doesn’t anyone do it then? Because building that semi-viable […]