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The bird base, or crane base, consists of a preliminary fold with both the front and the back sides petal folded upward. The frog base starts with a waterbomb base or preliminary fold. All four flaps are squash-folded (the result is the same in either case), and then the corners are petal folded upward.
The line between d and c is the plica basalis (bf), or fold of the wing at the base of the mediocubital field. [15] The termen is the outer margin of the wing, between apex and hind or anal angle. [17] [18] At the posterior angle of the wing base in some Diptera there is a pair of membranous lobes (squamae, or calypteres) known as the alula.
Modern origami has attracted a worldwide following, with ever more intricate designs and new techniques. One of these techniques is 'wet-folding,' the practice of dampening the paper somewhat during folding to allow the finished product to hold shape better. Variations such as modular origami, also known as unit origami, is a process where many ...
The skeleton of a bird wing. Places of attachment of various groups of flight feathers are indicated. The mute swan with outstretched wings Wing of the white-tailed eagle. Bird wings are a paired forelimb in birds. The wings give the birds the ability to fly, creating lift. Terrestrial flightless birds have reduced wings or none at all (for ...
Step 3. Truss the bird: While optional, you might want to use twine to further secure the wings and legs of the bird before cooking to keep them in place. Cut a piece of kitchen twine and tie the ...
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The term can also apply to the wings of a bird. Dihedral angle is also used in some types of kites such as box kites. Wings with more than one angle change along the full span are said to be polyhedral. Dihedral angle has important stabilizing effects on flying bodies because it has a strong influence on the dihedral effect.
Gular skin (throat skin), in ornithology, is an area of featherless skin on birds that joins the lower mandible of the beak (or bill) to the bird's neck. [1] Other vertebrate taxa may have a comparable anatomical structure that is referred to as either a gular sac, throat sac, vocal sac or gular fold .