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.
Benefits of Down Insulation. Contrary to popular belief, down insulation is not made of feathers. Down is actually the fluffy undercoating that provides warmth for geese, ducks and other waterfowl. The structure of down provides warmth by creating thousands of tiny air pockets. Itâs also breathable, which allows unwanted moisture vapor to escape.