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SAND GRAIN SIZE
Why Saudi Arabia imports sand despite being covered by desertDespite vast desert landscapes, Saudi Arabia imports construction-grade sand due to its smooth, wind-shaped grains being unsuitable for con...- Two Egyptian mummies were scanned in Los Angeles with half-millimeter precision, and doctors found something they weren't expecting in a 2,200-year-old spineAncient Egyptian mummies, Nes-Min and Nes-Hor, underwent advanced CT scans at Keck Hospital, revealing a unique spinal trepanation on Nes-M...
- Saudi Arabia is covered in sand, yet it imports millions of tons every year, and the reason lies in a tiny detail hidden in every grainSaudi Arabia imports sand from Australia for its massive construction projects. Desert sand is unsuitable for building concrete. River sand...
- Dark Oxygen, Singing Dunes, Uphill Rivers: 9 “Impossible” Things Science Can Now ExplainScientists have demystified astonishing natural events once thought impossible. From oxygen forming in deep oceans without sunlight to sand...
- Why Some Sand Dunes Can Get as Loud as a ConcertCertain desert sand dunes produce a deep, sustained sound, reaching up to 100 decibels, due to synchronized grain movement during avalanche...
- Why Some Sand Dunes Make Loud Humming Sounds, and Most Don’tCertain desert dunes produce a deep, steady sound. This phenomenon occurs when dry sand slides down a dune's steep slope. Millions of grain...
- Scientists Discover Why ‘Singing Sands’ in the Desert Make a Low-Pitched HumSinging sands, a centuries-old mystery, are explained by physics as dry dunes emit audible sounds when grains slide. Uniformly sized grains...
- Kosher Salt vs Sea Salt: The Small Differences That Change EverythingThe physical shape of salt grains significantly impacts taste and recipe outcomes. Kosher salt's large flakes dissolve slowly for gradual s...
- Gaia spacecraft faces challenges from solar storm and space dustWhen the European Space Agency launched the Gaia spacecraft to map stars, it encountered problems from a solar storm and space dust. Its el...
- 2024 Perseids meteor showers: What is it? When, where and how can you watch it?The Perseids meteor showers are caused by Earth passing through debris, full of bits of ice and rock, left behind by Comet Swift-Tuttle whi...
- 21,000-yr-old Footprints in New Mexico may be the oldest evidence of human migration in the AmericasThe new study presents two additional lines of evidence for the older date range. It uses two entirely different materials found at the sit...
- Biden unveils Webb space telescope's first full-color image of distant galaxiesThe White House sneak peek of Webb's first high-resolution, full-color image came on the eve of a larger unveiling of photos and spectrogra...
- Japan space agency finds ample soil, gas from asteroidThe Japan Aerospace Exploration Agency said its staff initially spotted some black particles sitting on the bottom of the capsule's sample-...
- New shark species with 'spaceship-shaped' teeth discoveredUnlike its gargantuan cousin the megalodon, Galagadon nordquistae is only about 12 to 18 inches long and is related to modern-day carpet sh...
- Scientists develop clothing that can communicateNew York, Aug 12 (IANS) Researchers have, for the first time, produced fibres with embedded electronics that are so flexible they can be wo...
- Our oldest known ancestor had a huge mouth and no anusLondon, Jan 31 (IANS) A microscopic, bag-like sea creature with a large mouth and no anus, which lived about 540 million years ago, could b...
- Water ice found on surface of comet 67PResearchers have identified two large patches of water ice on the surface of comet 67P, perhaps the most studied comet in history.
- NASA maps sand dunes on MarsA new image from NASA's Mars Reconnaissance Orbiter shows a resistant and highly fractured surface among sand dunes on the red planet.
- New method for measuring a kilogramme developedThe humble kilogramme may be given a new and more precise definition that for the first time will not require reference to a physical objec...
- Saturn moon may have deep-ocean vents that harbour lifeA research paper, published in the journal Nature, describes microscopic grains of rock detected by NASA's Cassini spacecraft in the Saturn...
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