Tag Archives: Invisible

Home security technology doesn’t have to be in-your-face or cost hundreds of dollars to get the job done. In my tests I’ve found some of the most useful home safety devices stay out of the way, quietly doing the jobs that no other technology can.   If you’re looking for affordable ways add security products that don’t invade privacy or take …

5 materials that could make fighter jets nearly invisible to radar  WION Source link

A radioactive gas that gets trapped in indoor spaces accounts for 3 to 14 percent of all lung cancers – and our toenails could reveal our long-term exposure to this gas. Radon, a colorless and odorless gas, is the second-leading cause of lung cancer after tobacco smoking, and yet non-smokers and occasional smokers often do not qualify for a lung …

A hidden population of asteroids sharing Venus’ orbit could threaten Earth in a few thousand years, and we might not even see them coming without better telescopes. These so-called Venus co-orbital asteroids are currently undetected because of their alignment in the sky but could one day drift into Earth’s path, at least according to simulations combining analytical models and long-term …

We could be overlooking an entire population of asteroids that pose a threat to Earth on the very simple basis that they’re extremely hard to see. In the space shared by the orbit of Venus, hundreds of undiscovered asteroids could be orbiting the Sun, hidden from our view simply because of their position. Because they’re closer to the center of …

A new large-scale study has confirmed that people who feel their sense of smell has weakened after Covid-19 are likely correct—and the problem may be more widespread than many realize. Even those who believe their sense of smell is normal may be unknowingly impaired, researchers say. The study, published in JAMA Network Open, was led by the National Institutes of …

It might be the end of an era for two royal family members, who are reportedly being banished by King Charles III. While some critics will automatically think it’s Prince Harry and Meghan Markle, the palace has more serious issues on its hands than a family feud. Prince Andrew and Sarah Ferguson’s close bond with the late sex-trafficker Jeffrey Epstein …

Oil wells often run dry long before they should, leaving behind untapped reserves hidden by complex underground geology. Researchers at Penn State are using one of the nation’s most powerful supercomputers to add a “time dimension” to seismic imaging, uncovering rock structures that standard 3D scans miss. Credit: Shutterstock Penn State team uncovers hidden structures missed by traditional seismic scans …

Sunscreen, while necessary as a skin protectant, has been shown to have an environmentally unfavorable impact. University of Stirling scientists, led by Dr. Sabine Matallana-Surget, studied co-pollution in relation to plastics and sunscreen in the sea, as reported by Phys.org. What they found, shockingly, was that a chemical common to sunscreens could prolong the life of plastic in the water. …

Ordinary matter, also called baryonic matter, consists of protons, neutrons, and electrons. This is the material that emits or absorbs radiation, allowing telescopes to observe stars, nebulae, and galaxies. From the largest galaxy cluster to the smallest grain of dust, everything visible belongs to this category. Yet despite its familiarity, this matter represents only a sliver of the cosmos. It …