01-01-2022, 01:38 PM
|
#921 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,176
Thanks: 125
Thanked 2,802 Times in 1,968 Posts
|
Whiffling: The Art of Flying Upside Down
https://www.amusingplanet.com/2021/0...side-down.html
Quote:
While it looks painful, such a maneuver is indeed possible and is a tried and tested way of braking, called whiffling. By turning the body upside down, the aerodynamics which usually give a bird lift during flying are inverted causing the bird to plummet towards the ground. Whiffling allows the bird to rapidly lose speed and height either for a fast landing or to throw off avian predators.
The behavior is seen in several species aside from geese including lesser yellowlegs, the black-tailed godwit, the northern lapwing, three species of scoter, and other members of the family Anatidae.
|
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
|
|
|
The Following User Says Thank You to kach22i For This Useful Post:
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
01-01-2022, 02:04 PM
|
#922 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,176
Thanks: 125
Thanked 2,802 Times in 1,968 Posts
|
So close, if only they finished off the aft section properly.
The Aurora Project: A Human-Hybrid Lithium Rocket Trike!
https://diesel-bike.com/Aurora/aurora.html
Quote:
The base of the project is a GoOne3 velomobile.................
The entire trike, less driver, weighs 110 pounds.............
|
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
|
|
|
01-01-2022, 02:23 PM
|
#923 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
I was disappointed that it isn't a human/rocket hybrid, but extra point for the 1959 Cadillac tail lights.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
01-01-2022, 04:06 PM
|
#924 (permalink)
|
Somewhat crazed
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,354
Thanks: 526
Thanked 1,187 Times in 1,047 Posts
|
The head on that goose is pasted upside down, birds cant do that without ruffled feathers somewhere on the neck.
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
|
|
|
01-01-2022, 04:15 PM
|
#925 (permalink)
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
I don't think the Go-One is "close." The front wheel openings could be done far better, and the windshield is a disaster for daily use. Plus, you won't be getting much exercise sitting in that greenhouse on a nice day.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
01-01-2022, 04:31 PM
|
#926 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
Quote:
...birds cant do that without ruffled feathers...
|
So You're saying there's a chance?
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
01-01-2022, 04:44 PM
|
#927 (permalink)
|
Master EcoWalker
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,999
Thanks: 1,714
Thanked 2,246 Times in 1,455 Posts
|
Hard to see if they keep their heads upright, but it does seem so.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.
|
|
|
The Following User Says Thank You to RedDevil For This Useful Post:
|
|
01-01-2022, 05:55 PM
|
#928 (permalink)
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
The half-roll suggests it's so. Else they'd have to snap their gaze like a pirouetting ice skater.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
01-02-2022, 10:39 AM
|
#929 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,176
Thanks: 125
Thanked 2,802 Times in 1,968 Posts
|
Quote:
Originally Posted by RedDevil
VIDEO
Hard to see if they keep their heads upright, but it does seem so.
|
I have lived on a river for the past two years, and it's filled with geese year around...............chase them off my lawn etc............
The view out my kitchen sink window is of the river, plus I hang out on the deck all the time, and I've never noticed this phenomena.
I will be looking for it now, apparently it happens in the blink of an eye.
https://worldwartwo.filminspector.co...vw-beetle.html
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
|
|
|
01-02-2022, 01:57 PM
|
#930 (permalink)
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,176
Thanks: 125
Thanked 2,802 Times in 1,968 Posts
|
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
|
|
|
|