Confidence votes 210. Antigone is considered a tragic hero, because tragic heroes have several qualities: They are royal, they have a tragic flaw that leads to their downfall, they have an unhappy ending, and lastly the character is worthy of concern. First, Antigone is royalty. This is shown through her bloodline in several ways.
The down feathers of eider ducks provide insulation due to lack of barbules and ability to fluff. Infrared image of a goose, showing its insulating capacities. Down feather structure is important for insulating properties. Eiders insulate their arctic nests with down feathers. Click/tap images for attribution and license information.
Feather Structure. Feathers grow from the epidermis of the birdâs skin. Feathers typically have a long, hollow shaft, also called the âquillâ or ârachisâ which supports the large, flat surafce, the âvaneâ. The vane is made up of small parallel strips called barbs which are like the teeth of a comb.