
Thor Hanson/Basic Books. Thor Hanson’s own cast of Archaeopteryx lithographica presents what he calls the “ancient wing written in stone.”
Click the image above to go to a podcasted interview with Thor Hanson, author of Feathers:
“To this day, they are the most efficient insulation known. We haven’t been able to match them with synthetics, and I think it boils down to that growth process and the fact that you can make these fine, fine branching structures. The key to insulation is what they call loft — how much air can you hold in a small space? And because feathers are so beautifully and finely branched, they can hold a great deal of tiny, tiny air pockets in that branched structure. And that’s what people try to mimic with synthetics, but haven’t been able to match feathers for that yet, because it’s difficult to manufacture finely branched structures.” Continue reading

















