"It's one that I feel comfortable with as a statement about life itself and my leaving it," Mr. Howard said, noting the final lines: And, in the isolation of the sky, At evening, casual flocks of pigeons make Ambiguous undulations as they sink, Downward to darkness, on extended wings.
To measure wing area, wing drawings were made by making a tracing of the outlines of fully extended wings.
However, in their study, they used frozen bird carcasses and consequently the bird's surface area was measured solely in the perching position and excluded the area of the tail feathers and extended wings.
Several distinct behavioral patterns involving wing usage are seen during fights between wild-type male flies including: (a) short rapid wing flicks utilizing one or both wings; and (b) an extended wing threat behavior directed at one male by the other in which "one fly quickly raises both wings to a 45° angle towards an opponent" [34], [36], [37], [38].
Wasps also keep their wings tight across their back when they are resting, while bees extend their wings outward.
In addition, the birds will do "pushups" in which they extend their wings and hold their bodies off the floor with their wing tips for up to 9 seconds.
So the Joker taunts and giggles, and Batman can only extend his wings.
If their is a deployment problem, the spacewalkers will be prepared to use special power tools to help extend the wings.
In 2014, Oklahoma joined five other farm states to challenge a California law requiring that eggs sold there come from chickens kept in cages big enough to let them extend their wings.
To increase LOCAAS' wingspan without increasing its weight, researchers designed 4-by-16-inch, 50 micrometers-thick "bucky papers" made out of carbon nanotubes and reinforced with epoxy resins to extend the wings of LOCAAS.
Battery cages are so small that not one hen can extend her wings, and yet there are three or more in each cage.
