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VisualWhen the Baron Walks Into His Own Play
The Criterion essay describes a local troupe performing a play about Baron Munchausen in an auditorium already half-destroyed by the Ottoman attack, with battle booms shaking its walls. This original editorial reconstruction inte…
Guia visualBirds can get a magnetic map clue
A compass says which way to go; a map clue says roughly where you are. Migrating birds may get both
Hubble Servicing: Big Repairs, Tight Constraints
1993 STS-61: Astronauts replaced Hubble’s original Wide Field/Planetary Camera with WFPC-2, built to correct the telescope’s faulty optics.
Guia visualDeco, from desk to dial
Compare Ruhlmann’s costly Paris writing table with Remler’s 1932 Minuette radio: see Deco furniture and household
VisualA Garden Between Tides
An imagined tidal garden where clear blue water catches a bright patch of sky. Sunlit ripples lead between lush green banks, inviting a slower wander.
The Hop Shoot Circles as Twiners Seek Supports
to bend on one side and move slowly round, or rotate, like the hands of a watch, with the sun.
Vídeo curtThe Glass Drop With a Hidden Weakness
But snap its tiny tail, and the whole thing flies apart. Meet Prince Rupert's drop: molten glass cooled suddenly in water. The outside hardens first. The centre cools later and tries to shrink, but the solid shell holds it back.…
Vídeo curtThe Hidden Repair Kit in Roman Concrete
These lime-rich pieces were once dismissed as sloppy mixing. Research points to hot mixing: adding reactive quicklime while making the mortar. If a small crack crosses a lime fragment, water can enter. Calcium dissolves into the…
Llibre il·lustratSilverspot and the Other End
Silverspot and the Other End By Adapted from Ernest Thompson Seton (1898) Among the crows of Toronto’s wooded ravines, one old bird was easy to recognize. Between his right eye and his bill lay a small silvery-white spot. To the…
Sea sponges that build with silica
Different glass sponges, drawn as intricate natural frameworks. https://askpandi.com/sources/21-brehms-tierleben-volume-10-lower-animals-1893-original-alfred-edmund-brehm-9709 Pheronema carpenteri, with an anchoring tuft of silic…
When Iguanodon wore a horn on its nose
Victorian Iguanodon reconstructions wore a horn on the nose. This old book confidently put it there. At left: the real spike. Its place on the animal was the puzzle. Early reconstructions assigned it to the snout. More complete s…
Some ants turn their own bodies into food stores
A colony’s food reserve can be alive: some ants store liquid food in their own enlarged bodies. The pantry is alive Some ants store liquid food inside their own bodies. Their swollen abdomens turn living workers into the colony’s…
The well that put a stone coat on a hat
At a Victorian dripping well, everyday objects seemed to become stone. The surprise was a mineral coat, built by the water. This hat seemed to turn to stone At Knaresborough’s dripping well, Victorian visitors saw everyday object…
Llibre il·lustratLobo, King of Currumpaw
Lobo, King of Currumpaw By Adapted from Ernest Thompson Seton (1898) Across the open cattle country of New Mexico, a great gray wolf led his small pack through the canyons. People called him Lobo. Hunters had tried to catch him f…
Carrusel compostThe caterpillar that knitted a hanging cage
An airy cocoon, suspended on silk: a tiny Amazon caterpillar’s extraordinary construction project. This tiny cage is a moth’s nursery In the Amazon, a caterpillar spins a silk cocoon with open mesh instead of solid walls. It hang…
The tree that feeds and shelters its defenders
A thorn can be a home. Ants hollow out the acacia’s paired thorns and rear their young inside. The tree supplies meals, too. Nectar glands and tiny yellow food bodies keep the ants returning to its young leaves. And the leaves ga…
The bird that built a new floor over an intruder’s egg
An unwanted egg can become the bottom layer of a new nest. For a yellow warbler, starting over can mean burying her own eggs too. An egg that does not belong here A cowbird can lay its egg in a yellow warbler’s nest, leaving anot…
The photographer hiding inside a fake tree
A tree trunk with a camera inside: the Kearton brothers’ wonderfully ingenious answer to photographing shy birds. There’s a photographer inside this tree To photograph shy birds, the Kearton brothers hid a man and his camera insi…