Feathers ➶

Feathers kept B6 warm overnight while it flew above the Pacific Ocean. Feathers repelled rain along the way. Feathers formed the flight surfaces of the wings that kept B6 aloft and drove the bird forward for nearly 250 hours without failing.

One might expect that, considering all the time humans have spent admiring, using and studying feathers, we would know all their tricks by now. Yet insights into these marvelous structures continue to emerge.

✶ Thursday, 18 April 2024

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