Home Mail MemberMap Chat (0) Wallpapers
Go Back   ChiefsPlanet > The Lounge

Reply
 
Thread Tools Display Modes
Old 01-15-2014, 11:02 PM  
listopencil listopencil is offline
sic semper tyrannis
 
listopencil's Avatar
 
Join Date: Oct 2002
Location: In Partibus Infidelium
Casino cash: $13625
NYU Drone Flys Like A Swimming Jellyfish




Scientists create winged-jellyfish drone…and it's beautiful

Researchers from New York University recently unveiled a drone that "mimics the movements of swimming jellyfish." Designed by Leif Ristroph, an applied mathematician at NYU, the drone was presented at a fluid dynamics conference in Pittsburgh. It's tiny and adorable and I want one.
Ristroph wanted to design a drone based on insect wings. However, instead of having the wings sticking out of the side, he had them point downward. When they flapped back and forth it was enough to lift the robot into the air.
Insects have built-in sensors and feedback that help them stay upright, he explained. Drones based on insect wings need the same support. But motors, sensors, and batteries add weight, which becomes problematic for people looking to design smaller and smaller drones. "I wanted to design something that had stability without the stability-sensor needs."
"One of the important things to keep in mind is that whether it's an insect, a bird, a fish, or a jellyfish, they're all playing by essentially the same rules in physics," said Brad Gemmell, a University of Texas, Austin, ecologist who studies how animals move through the water. Moving through air is similar to moving through water. And regardless of an organism's shape, if it wants to propel itself along, it has to generate thrust...Jellyfish move in essentially two ways. For smaller species that are a few centimeters in size, they use jet propulsion, he said. The animal contracts its umbrella-shaped bell, squeezing out water behind it and creating a doughnut-shaped ring of water called a vortex. That vortex pushes the jellyfish forward, said Gemmell. Larger jellyfish add a movement called rowing to their jet-propulsion capabilities. Rowing is when the loose edge of their bell flaps around, creating additional vortices that help to generate thrust. Those loose edges almost push against the fluid like a rower pushes an oar against the water, Gemmell explained.
Ristroph is now focused on improving his drone and creating more creative designs for drones. "I'm personally interested in schemes that no one in nature or the engineering laboratory has thought of," Ristroph said. [National Geographic]


Posts: 29,133
listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.listopencil is obviously part of the inner Circle.
  Reply With Quote
Old 01-16-2014, 11:08 AM   #16
Rain Man Rain Man is offline
No known superpowers
 
Rain Man's Avatar
 

Join Date: Jul 2001
Location: In A World Few See
Casino cash: $12878
VARSITY
Jellyfish are amazing. I love watching the jellyfish when I'm at an aquarium. I bet that jellyfish will play some amazing role in human history when all is said and done. We'll use them to fly interplanetary spacecraft or something.
__________________
Chiefs Football - 2014 (and every other year)

Posts: 78,238
Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.Rain Man is obviously part of the inner Circle.
  Reply With Quote
Old 01-16-2014, 11:29 AM   #17
Radar Chief Radar Chief is offline
Wearing ballistic dog goggles.
 
Radar Chief's Avatar
 

Join Date: Mar 2001
Location: In the box.
Casino cash: $10088
Quote:
Originally Posted by HemiEd View Post
South wind.
Except on days like today, cause that north wind is howling out there right now.
__________________
Like "Cool Hand" Luke I'm busting rocks.

__/|_/[___]
|/ \\_| ---OllllO
_( ))~-( ))-0--))
Posts: 22,863
Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.Radar Chief is obviously part of the inner Circle.
  Reply With Quote
Old 01-16-2014, 01:32 PM   #18
durtyrute durtyrute is offline
Sho nuff
 
durtyrute's Avatar
 

Join Date: Mar 2011
Location: Chieftown USA
Casino cash: $5585
Just wait till there flying over your house for your "safety." It'll really be cool then, huh?
__________________
“All that is necessary for the triumph of evil is for good men to do nothing." ~ Edmund Burke
Posts: 5,717
durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.durtyrute wants to die in a aids tree fire.
  Reply With Quote
Old 01-16-2014, 01:39 PM   #19
Easy 6 Easy 6 is offline
Fear This Man
 
Easy 6's Avatar
 

Join Date: Sep 2006
Location: the goldilocks zone
Casino cash: $30519
Quote:
Originally Posted by Simplicity View Post


I like these drones more.
BZZT wrong answer...

Posts: 31,130
Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.Easy 6 is obviously part of the inner Circle.
  Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump




All times are GMT -6. The time now is 03:42 AM.


This is a test for a client's site.
A new website that shows member-created construction site listings that need fill or have excess fill. Dirt Monkey @ https://DirtMonkey.net
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.