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sbkenn
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Gold
Flying robots
sbkenn   8/28/2012 2:14:16 PM
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I recently spent 20 minutes watching a herring gull practising slope-soaring and precision flying, wing-tip feathers used for slow-flight control, wing flutter while hovering in an updraft, twisting tail for directional control, swooping and turning ... all without a single wingflap !

I love the Smartbird, but await a Pteradactyl.

CLMcDade
User Rank
Gold
flying machines
CLMcDade   8/28/2012 2:04:31 PM
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The off-the-shelf toys are lots of fun and definitely lead to breakthroughs for these more "serious" applications.  Last year, I saw one flying in the local Brookstone store.  It was a quad-rotor styrofoam device, with front mounted camera that sent the images to an I-phone.

We flew it out of the store, into the mall hallway, using only the image on the I-phone to guide the device. Here's a link to its webpage - watch the video - lots of fun to be had. 

http://www.brookstone.com/parrot-ar-drone-2-quadricopter?bkiid=SearchResults|CategoryProductList|786406p

And the interest is not just the technology, but also the ways people use it.  How cool would it be to be able to fly your camera in for a closer look at a crowded tourist location or outdoor performance?

Rob Spiegel
User Rank
Blogger
Re: nature versus machines
Rob Spiegel   8/28/2012 1:35:15 PM
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That link explians a lot, Ann. Thanks. This is a very impressive gadget. And you're right, it is beautiful to watch in flight.

SparkyWatt
User Rank
Platinum
Hybrid Flyers
SparkyWatt   8/28/2012 1:35:12 PM
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I would like to see more "hybrid" flyers.  Propellers are very fast and maneuverable, but they take a terrible amount of energy just to stay in the air.  Balloons stay in the air without consuming energy, but they are very slow.  It seems to me that a neutral density robot that used propellers or jets to maneuver would be the best of both worlds in most cases.  Think of how much battery life a few ounces of helium could buy.

Ann R. Thryft
User Rank
Blogger
Re: nature versus machines
Ann R. Thryft   8/28/2012 1:31:35 PM
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Rob, I know what you mean: its flight looks improbable, although beautiful. But actually, it's not just the light weight--it's the amazing mechanical design and how it makes physics work for it. You can learn more about that here http://www.festo.com/rep/en_corp/assets/pdf/AirJelly_en.pdf

Rob Spiegel
User Rank
Blogger
Re: nature versus machines
Rob Spiegel   8/28/2012 1:18:09 PM
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That video of the AirJelly is very impressive, Ann. It doesn't seem that arm movement would be sufficient to keep the craft in the air. Perhaps it's very light. 

Ann R. Thryft
User Rank
Blogger
Re: nature versus machines
Ann R. Thryft   8/28/2012 12:17:44 PM
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Clinton, excellent question. First, I doubt if a hawk would attack either of these, since they don't look or smell like food. But they might look like competition.Smaller birds do attack known predators, but these artificial critters would probably scare most birds. For one thing, the AirJelly is huge. Here's a video showing it next to a person--and also showing its amazing movement:
http://www.festo.com/cms/en_corp/9771_10377.htm#id_10377
I'd like to see the stats on UAVs and how birds treat those. Anyone know?

Ann R. Thryft
User Rank
Blogger
Re: A variety of flight
Ann R. Thryft   8/28/2012 12:17:11 PM
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Thanks, gsmith, I enjoy finding and writing about the amazing variety of robots. I agree, the AirBurr is very weird looking. I'm pretty sure gyros help it to right itself--that's the usual mechanism, and one used also in the Japanese flying sphere on Slide 9. The sphere costs 200x-plus Tim's Airhog price, but it's made entirely of COTS components. My guess is that one major reason for the variety of robots we're seeing recently is the broad availability of these powerful, cheap components.

Ann R. Thryft
User Rank
Blogger
Re: Miniaturization
Ann R. Thryft   8/28/2012 12:16:49 PM
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Tim, I agree with gsmith--that's an incredibly low price for all that a ability. I'm convinced that many of these flyers must have begun as inspiration from playing with RC "toys."

CLMcDade
User Rank
Gold
nature versus machines
CLMcDade   8/28/2012 11:20:55 AM
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Hi Ann,

What a great collection of flying devices.  But a stray thought came to mind - how well will an airborne jellyfish or penguin do against a hawk?  Nature has influenced some of the designs, but it may also challenge them once they are in the sky.  After watching the smallest of sparrows chase cats away by dive bombing and pecking them, one can easily imagine the "dogfights" between these robots and birds.

The designers may have to take some cue from "Battlebots" for their final versions.

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