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Un répertoire grandissant de réponses utiles sélectionnées par la communauté Pandi. Cherchez dans la collection ou parcourez les dernières découvertes.

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Behind the launch consoles with NASA trailblazers

Homes Without Handspar Pandi5 j

A room made of air

The colour-remastered water-spider plate places the silk cells among submerged plants. Colour is a modern interpretation of the book’s illustration, not a diagram of gas exchange.

An underwater air room

At first glance, a pond. Look below the surface: a spider’s silk chamber holds a pocket of air.

A spider’s underwater home begins with trips to the surface. J. G. Wood quotes Bell’s 1856 observations: bubbles carried down to a silk web gradually fill a chamber, which the spider shapes and strengthens before resting inside. One recorded sequence involved fourteen journeys. Source: Homes Without Hands, physical PDF pages 406–409; engraving on page 407, colour remastered by Pandi. The same historical plate accompanies all four reading steps. Colour remasters are modern artistic interpretations.

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Wildest moments from the Komona potion contest

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A home you can carry

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Colour-remastered engraving of caddis flies over a pond and several differently shaped larval cases beneath the water, including stick, shell and granular cases. Colour is interpretive. — archive.org

A larva can take its shelter along for the journey. Compare the river’s patchwork cases with a caterpillar’s wood-and-leaf covering on land. Both accounts and plates come from J. G. Wood’s Homes Without Hands, physical PDF pages 308–311 and 410–414. Colour remasters are modern artistic interpretations.

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When a spider’s front door gets buried

A spider’s earth-covered flap can look like an ordinary patch of ground. It is hinged to a silk-lined tube and closes flush with the soil. In one British Museum specimen, an older, disused flap lay about three inches below the newer entrance. Wood read it as evidence of added soil and inferred that the spider had extended its tube upward to build a new door. The old flap was observed; the rebuilding was inferred.

The book’s trap-door spider plate shows burrows below the soil and their hinged lids at the surface. It is not a recorded sequence of the buried-door repair.

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Surprising discoveries in Mariana deep waters

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Inside Coast Guard rescue swimmer school training

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NASA's quiet supersonic X-59 takes its maiden flight

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A nursery made of leaf thimbles

The rose-cutter bee’s leaf cells are in the horizontal branch below the oval Rhagium cocoon. The vertical stem at left belongs to a different, pith-boring bee.

Leaf-built nurseries

Below the oval beetle cocoon, find the horizontal branch. Its small leaf-lined cells belong to Wood’s rose-cutter bee.

A familiar rose leaf becomes a small container. Wood’s rose-cutter bee nests curved pieces together, provisions each cell and repeats the process along a burrow. The relevant cells occupy the horizontal branch in this composite plate; the oval cocoon above belongs to a beetle. Source: Homes Without Hands, physical PDF pages 202–204. The colour-remastered plate is repeated for a guided reading; cutting and carrying are described in the text, not separately depicted. Colour remasters are modern artistic interpretations.

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The architecture hidden beneath bark

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Colour interpretation of the book’s bark-beetle plate, showing a central passage with many radiating tunnels exposed beneath bark. — archive.org

The same material can be eaten into passages or assembled into a cocoon. Wood’s two beetle examples reveal different structures, made at different stages for different purposes. From Homes Without Hands, physical PDF pages 195–196 and 202–203. Colour remasters are artistic interpretations of the book plates.

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