The eyes are the window to the soul — but what about the face? It may say more than you know about the state of your health. Find out what it can tell you with this WebMD slideshow.
Kaunas University of Technology (KTU), Lithuania researchers, and scientists from Japan have developed a unique nanolaser. Although the dimensions of this laser are so small that its structure can only be seen through a powerful microscope, its potential is vast. With applications in early medical diagnostics, data communication, and security technologies, this invention could also become a key tool for the study of light and matter interactions.
Depending on the application, lasers differ in the way light is amplified and produced, which determines the color of the radiation and the quality of the laser beam.
“Nanolasers are lasers that use structures a million times smaller than a millimeter to generate and amplify light, and the laser radiation is generated in an extremely tiny volume of material,” says Dr. Mindaugas Juodėnas, one of the authors of the invention.
The sun continues its hurling out solar flares. On Sunday, it hurled out an X-class solar flare, the strongest type of solar flare, signalling its dynamic nature. The dramatic eruption originated from sunspot region 3,912, peaking at 4:06 AM. EST (0906 GMT) on December 8. Accompanying the flare was a coronal mass ejection (CME), a massive outpouring of magnetic fields and plasma from the sun’s atmosphere.
While CMEs, also known as solar storms, can cause geomagnetic disturbances and spark vibrant auroras when they interact with Earth’s magnetosphere, experts predict only mild effects from this event. According to Space Weather physicist Tamitha Skov, Earth may experience a glancing blow from the CME.
“The solar storm launched will graze Earth to the west. Sadly, the coming fast solar wind streams might deflect the structure even further to the west. Expect only mild impacts by midday December 11,” Skov shared in a post on X.
Researchers have documented a rare supernova, 2023ufx, the most metal-poor stellar explosion observed, located in a dwarf galaxy.
This finding is crucial as it mirrors the early universe’s conditions, aiding astronomers in understanding galaxy formation and evolution.
Discovery of a Unique Supernova.
The Extremely Large Telescope is currently under construction, with the most recent milestones including progress made with building the dome, central structure and the base for the primary mirror.
SACRAMENTO — A magnitude 5.5 earthquake that struck in a remote area of Nevada on Monday afternoon sent shaking throughout Central California, including the Sacramento area.
In Sacramento, one person saw ornaments on a Christmas tree sway, as did some blinds for less than a minute. Water sloshed in a swimming pool, another person said. In Davis, a computer swayed for just a few seconds and a desk chair was jolted, while a young man reported feeling his bed sway and an unnerved poodle sought comfort.
In Reno, about 50 miles northwest of the quake’s epicenter, someone at KTVN-TV captured a video of the star on the newsroom’s Christmas tree still quivering — barely — as staffers scrambled to cover the earthquake. One person could be heard saying they hadn’t felt anything.
Summary: New research reveals that the cognitive boost from moderate to vigorous exercise lasts up to the next day, enhancing memory performance in adults aged 50 to 83. The study also found that adequate sleep—particularly deep, slow-wave sleep—adds to these benefits.
Conversely, prolonged sedentary time was linked to poorer working memory the following day. These findings highlight the importance of daily physical activity and quality sleep for maintaining cognitive health, especially in older adults.
That ordinary smartphone in your pocket could be a powerful tool for investigating outer space. In a new study, researchers at Google and CU Boulder have transformed millions of Android phones across the globe into a fleet of nimble scientific instruments—generating one of the most detailed maps to date of the uppermost layer of Earth’s atmosphere.
The group’s findings, published Nov. 13 in the journal Nature, might help to improve the accuracy of GPS technology worldwide several-fold. The research was led by Brian Williams of Google Research and included Jade Morton, professor in the Ann and H.J. Smead Department of Aerospace Engineering Sciences at CU Boulder.
“These phones can literally fit in your palm,” Morton said. “But through crowdsourcing, we can use them to change the way we understand the space environment.”
OpenAI’s video-generating AI tool is now available, and if you have the $200 per month ChatGPT Pro plan, you can prompt it for 1080p videos up to 20 seconds long.
Wuhan University-led research is reporting the development of a revivable self-assembled supramolecular biomass fibrous framework (a novel foam filter) that efficiently removes microplastics from complex aquatic environments.
Plastic waste is a growing global concern due to significant levels of microplastic pollution circulating in soil and waterways and accumulating in the environment, food webs and human tissues. There are no conventional methods for removing microplastics, and developing strategies to handle diverse particle sizes and chemistries is an engineering challenge.
Researchers have been looking for affordable, sustainable materials capable of universal microplastic adsorption. Most existing approaches involve expensive or difficult-to-recover adsorbents, fail under certain environmental conditions, or only target a narrow range of microplastic types.