Directorio de Pandipedia
Un directorio creciente de respuestas útiles seleccionadas por la comunidad de Pandi. Busca en la colección o explora los últimos descubrimientos.
2379 entradas disponibles
Explorar entradas
Mostrando 451–468 de 2379
Inside Coast Guard rescue swimmer school training
[01:33] Storm Triage Under Extreme Conditions [03:07] First-Person Rescue Basket Hoist [05:23] Why Rescue Swimmers Must Master Sewing [07:03] Zero Margin for Error on Rigging
NASA's quiet supersonic X-59 takes its maiden flight
[00:51] NASA X-59 Cleared for Historic Maiden Takeoff [03:35] Flying Supersonic Without a Front Windshield [04:36] X-59 Cruises in Formation with F-18 Chase Plane [05:12] NASA X-59 Lands Safely After Historic Test [07:28] Test Pi…
GaleríaRooms that grow on trees
The British-gall plate groups oak galls with the rose’s moss-like bedeguar near the centre. Their outer shapes differ, but Wood invites the reader to think of a larva housed within plant tissue. These structures grow around their…
Guía visualThe leaf with a seam
A leaf still hangs from its twig. Look closer: its sides have been drawn together around a hidden nest. Wood’s tailor bird pierces holes with its beak, then passes a long plant fibre through them to join the edges. The folded lea…
Escape without breaking the cocoon
Wood found an emperor moth in its cage, though the cocoon looked unbroken. He thought it had come from elsewhere and waited for the cocoon to open. A year later, he cut it open: inside were an empty pupal shell and the caterpilla…
GaleríaOne roof, many front doors
The sociable weavers’ great grass roof shelters a collection of distinct nests beneath it. Look for the separate openings along the underside. Wood distinguishes the common covering from the nests it protects: one roof does not m…
Social PostA home that starts by changing the river
A beaver’s home is more than its lodge. In Wood’s account, the dam comes first: logs, branches, earth and mud form a barrier across the stream, holding back water around the dwelling. The dam and lodge are distinct structures, ea…
GaleríaThe architecture hidden beneath bark
The branching pattern belongs to the Scolytus bark beetle. Wood describes larval feeding tunnels radiating from a central passage and widening as their occupants grow. The pattern records excavation and feeding, rather than a wov…
Guía visualA nursery made of leaf thimbles
Below the oval beetle cocoon, find the horizontal branch. Its small leaf-lined cells belong to Wood’s rose-cutter bee. She cuts a nearly semicircular piece of leaf with her jaws, then carries it back to the burrow. Curved pieces…
Social PostWhen 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 ne…
GaleríaA home you can carry
Wood’s caddis plate collects cases made with sticks, sand and shells. In the portable examples, the larva’s front emerges to move while its softer body stays within the case. The assortment shows different constructions, not a si…
Guía visualA room made of air
At first glance, a pond. Look below the surface: a spider’s silk chamber holds a pocket of air. Each trip to the surface brings another bubble down to the web. The room is furnished with air. Bell watched one spider make fourteen…
Ai Short VideoPleating a Copper Feather
Thin copper-coloured foil gathers into a pleated fan under a wooden paddle on plum leather. AI-generated ASMR with native sound. Duration: 10.0 seconds /media/aishortvideos/spaces/9610/meta-next-two-20261007/05-copper-feather-0de…
Ai Short VideoUnspooling a Moss Comet
A moss-green felt ribbon unfurls from a pale wooden spool across a burgundy workbench. AI-generated ASMR with native sound. Duration: 10.0 seconds /media/aishortvideos/spaces/9610/meta-next-two-20261007/04-moss-comet-ae02f049ad5a…
Social PostConcrete with a built-in crack repair system
Those white lumps in Roman concrete may be part of a repair system. Researchers found calcium-rich inclusions, tiny features within the concrete, that can help fill small cracks when water enters. Water can dissolve calcium from…
Social PostA flower with its own heating system
Eastern skunk cabbage can flower while snow remains and the ground is frozen. Its flowering structure releases heat through metabolism, staying warmer than the surrounding air. Stored energy helps maintain this warm space in chil…
Social PostSound that draws patterns in sand
Change the note, and sand on a vibrating metal plate forms a different geometric pattern. The grains bounce away from parts moving strongly and gather along lines that barely move. These patterns, called Chladni figures, vary wit…
Social PostA real photograph from Saturn’s moon
On 14 January 2005, the Huygens spacecraft landed on Saturn’s moon Titan and sent back this view of its pebbled surface. The rounded stones are thought to be water ice; Titan is so cold that ice behaves like rock. Titan has cloud…