Notícias · Recifes

Sound waves reconstruct Alaska fireball path after cameras miss key details

When a bright fireball streaked across the Alaska sky last spring, the usual tools scientists rely on to track such events—cameras and satellites—did not provide a detailed picture. But the meteoroid left behind something else: low-frequency sound waves that traveled hundreds of

Admin Recifes 15/07/2026 1

Chandra releases 'red, white, and blue' universe for US 250th

In celebration of the 250th birthday of the United States, NASA has unveiled four cosmic images from its Chandra X-ray Observatory, rendered in red, white and blue, that represent the wonders of the universe the agency explores. The images are accompanied by a trio of new sonific

Admin Recifes 15/07/2026 1

400-year-old painting reveals a bat's secret diet

Natural historians have many observational techniques in their toolkit for learning about the natural world: tagging animals with tracking devices, recording sounds, analyzing droppings or simply watching and counting. As technology has advanced, these methods have grown far more

Admin Recifes 15/07/2026 1

Scientists create quantum sound device that could transform communications

A new quantum device can generate precisely controlled bursts of sound-like particles, or phonons, by forcing electrons through an ultra-thin crystal at extremely low temperatures. The surprising behavior pushes beyond the limits predicted by current theories, suggesting scientis

Admin Recifes 15/07/2026 1

Weatherwatch: How thunder is made

Sound of thunder varies depending on distance of listener from lightning as atmosphere muffles and absorbs sound A bolt of lightning heats the air almost instantly to as high as 30,000C, causing explosive expansion and a supersonic shock wave that becomes thunder. What that thund

Admin Recifes 15/07/2026 1

Songs play a greater role than plumage color in limiting bird hybridization, study suggest

When trying to attract and recognize potential mates, animals are known to rely on various signals, traits and behaviors. In the case of birds, these signals can typically include a wide range of sounds—such as trills, whistles, chirps or melodious notes defined as "songs"—as wel

Admin Recifes 15/07/2026 1

Birdsong data from Merlin ID app to help global biodiversity project

Cornell Lab for Ornithology plans data linkup between app and population monitoring on eBird platformThe Merlin bird ID app will allow users to feed real-time bird identifications into one of the world’s biggest citizen-science biodiversity projects in an update it is hoped will

Admin Recifes 15/07/2026 1

Turning up the heat on cancer: Manganese ferrite nanoparticles outperform rivals

Scientists have long known that heat can be used to help fight cancer. But heating tumors and cancer cells is trickier than it sounds. Apply too much heat and patients could get hurt; apply too little or target the wrong location and the therapy will not be effective.

Admin Recifes 15/07/2026 1

Making the 'invisible' visible: How high-speed movies could change the way scientists stud

High-speed movies of microscopic worms may sound like a dull night at the cinema, but this advanced imaging capability could help scientists better understand how diseases begin and progress, track subtle changes in cells and study how the body responds to treatments.

Admin Recifes 15/07/2026 1

Animal tracking overlooks biodiversity hotspots, with 95% of studies in well-funded countr

A recent study reveals geographic biases in how aquatic animals have been tracked and researched across the globe, with a preference toward politically stable, English-speaking countries with high conservation funding. Researchers are sounding the alarm in the hope of ensuring bi

Admin Recifes 15/07/2026 1

The Matua people: Sounds and rituals strengthen cross-border sense of community

Professor Carola Lorea of the University of Tübingen's Department of Social and Cultural Anthropology has published a comprehensive academic study on the Matua, a community of 50 million people scattered across India, Bangladesh and 32 other nations in the wake of evictions and f

Admin Recifes 15/07/2026 1

Elephants turn footsteps into messages through ground and skull vibrations

Elephants can communicate with other elephants across distances of up to five kilometers (3 miles) by producing sounds that travel through the air. However, they have a second way of sending signals: seismic waves traveling through the ground. These vibrations are transmitted fro

Admin Recifes 15/07/2026 1

Acompanhe as Notícias da Recifes