Wet penguins stay ice free because of feather microstructure: Scientists
Q. What ensures that a wet penguin in a bone chilling air has feathers free of ice and sleek?- Published on 26 Feb 16a. Microstructure of the penguin’s wings
b. Microstructure of the penguin’s feathers
c. Both of the above
d. Neither of the above
ANSWER: Microstructure of the penguin’s feathers
A wet penguin in bone chilling air will ensure its feathers stay sleek and free of ice due to the unique microstructure of the feathers. Based on their findings, the scientists replicated the architecture in a nano fibre membrane that could be developed into an ice-proof material. Researchers examined Humboldt penguins from Peru to Chile using a scanning electron microscope. Feathers were found to be composed of barbs, wrinkled barbules and interlocking hooks. Hierarchical system with grooved structures is anti adhesive in addition to being hydrophobic. Scientists have discovered an ice phobic polyamide fibre menarche that could be used in electrical insulation applications.
