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Vídeo cortoThe Spanish You Can Whistle Across a Valley
On La Gomera, in the Canary Islands, people developed a remarkable way to carry conversations across deep ravines. Called Silbo Gomero, it transforms spoken Spanish into whistles. Changes in pitch, and breaks in the sound, help l…
A Mars Mission Reassembled in Orbit
{"displaytitle": "A Mars Mission Reassembled in Orbit", "shortaudio": {"script": "In the 1990s, NASA\u2019s Design Reference Missions were planning studies, not missions that flew. The 1997 plan changed a basic trade from the 199…
Solar Max: From Tumbling Satellite to Shuttle-Bay Repair
On STS-41C, astronauts first struggled to capture Solar Max, a satellite spinning so unpredictably that its motion worsened during attempts to steady it.
Loggerheads Can Learn a Place by Its Magnetic Signature
Juvenile loggerheads learned to distinguish simulated magnetic fields linked to feeding locations from fields where they were not fed.
How a gasoline engine turns fuel into motion
A four-stroke gasoline engine converts the chemical energy of fuel-and-air combustion into rotational mechanical work through a repeating four-step cycle <sup class='textcitation' sourceid='8' startphrase='compressing
Guía visualAwns that bore seeds into soil
A fruit with a beak 🌿 Cooke describes crane’s-bill and stork’s-bill fruits as beak
Guía visualThe Listening Nook
Come in: a little listening nook opens beside a clear garden channel. 🌿
Classic slapstick and sharp wit of W.C. Fields
[01:00] Jealous Husband Knots a Flirt into a Pretzel [06:16] Mistaking a Woman's Hair for a Child's [07:47] Chivalry and Laundry Marks [10:43] Kicked to Death by Canaries [11:48] A Pie on the Golf Course [13:56] The Squeaky Golf…
How Powhatan builders shaped massive canoes with fire
[00:55] Why Cypress Made Indestructible Canoes [01:35] Canoes Big Enough for 40 Men and a Campfire [03:48] Carving Logs with Oyster Shells
Instagram PostDaylight, with a shield
In NASA Ames’s 1977 torus study, windows covered about one-third of the surface. Mirrors routed sunlight; chevron passages admitted it while baffling cosmic rays. The proposal was never built.
Why Radiation Could Add Dozens of Tons
In the Lewis study, crew safety had a substantial mass cost. Its proposed spacecraft had a heavily shielded central vault where the crew would shelter during large solar flares, passage through radiation belts and nuclear-rocket…
How Apollo 12 lunar dust followed the crew into the cabin
Apollo 12’s Surveyor 3 recovery brought lunar dust consequences beyond the surface: dust abraded the astronauts’ suit garments, entered the Lunar Module, and later clogged the command-module air-filter screens, which the crew cle…
When Arum Flowers Run Hot
Cooke drew attention to a curious warmth in flowering aroids, plants whose many small flowers crowd around a central spike called a spadix. An enclosing leaf-like spathe surrounds the flowers and, he wrote, slows the escape of he…
The Washington family in Galveston’s storm records
Records let us sketch who the Washington family were, where they lived, and whom a victim list counted among the dead, but they do not resolve every family member’s f
Libro ilustradoThe King of the Golden River: The Last Drops
The King of the Golden River: The Last Drops By After John Ruskin The King of the Golden River. The Last Drops To become rich, Gluck needed to carry three drops of holy water to the top of a mountain. He set out with a full bottl…
Libro ilustradoSouth: The Mountain Between Them and Rescue
South: The Mountain Between Them and Rescue By Adapted from Ernest Shackleton South. The Mountain Between Them and Rescue They had crossed an ocean in a small boat. Now Shackleton, Worsley and Crean stood on an island—and safety…
Libro ilustradoA White Heron: The Secret at the Top of the Tree
A White Heron: The Secret at the Top of the Tree By After Sarah Orne Jewett A White Heron. The Secret at the Top of the Tree A stranger offered Sylvia ten dollars for a secret. She was nine. Her grandmother had almost no money. A…
Social PostThe tennis ball that defies the wind tunnel
Surprise: one free-flight study found spinning tennis balls had less drag than non-spinning ones, unlike wind-tunnel tests, where spin generally raised drag. This needs replication. Shifting felt fuzz and random airflow asymmetri…