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Location American Science News for 22 May 2024

There are three ways to look for evidence of alien technological civilizations. One is to look out for deliberate attempts by them to communicate their existence, for example, through radio... broadcasts. Another is to look for evidence of them visiting the solar system. And a third option is to look for signs of large-scale engineering […]
Ancient Mycenaean armor is soResearchers recruited volunteers from the Hellenic Armed Forces to test the strength of replicas of 3,500-year-old body armor.
Scientists discover theNew simulations suggest that the origins of the sun's explosive storms could lie much closer to its surface than first thought.
'We'll be studying this eventVibrant auroras that were recently observed by millions of people across the globe were some of the most widespread in the last five centuries, NASA says. The light shows may have also reached the... equator.
50,000-year-old NeanderthalA new analysis of two skeletons suggests that three modern human viruses infected Neanderthals around 50,000 years ago.

Dreo MC710S air purifier tower fan review

Live Science - 22 May 2024 19:00
Dreo MC710S air purifier towerDid this wallet-friendly air purifier tower fan manage to impress us with its performance?
Researchers show how to useUniversity of Michigan physicists have devised a way to manipulate active fluids, a type of fluid composed of individual units that can propel themselves independently, by taking advantage of... topological defects in the fluids.
Artificial nanomagnets inspireAn international research team including Los Alamos National Laboratory and Tel Aviv University has developed a unique, mechanical metamaterial that, like a computer following instructions, can... remember the order of actions performed on it. Named Chaco, after the archaeological site in northern New Mexico, the new metamaterial offers a route to applications in memory storage, robotics, and even mechanical computing.
Scientists made mice with YScientists discovered that removing specific molecules from developing mice can completely reverse their sex from male to female.
Streamlined microcomb designLight measurement devices called optical frequency combs have revolutionized metrology, spectroscopy, atomic clocks, and other applications. Yet challenges with developing frequency comb generators at... a microchip scale have limited their use in everyday technologies such as handheld electronics.
Unlocking the secrets ofA study now published in Nature Communications brings remarkable insights into the enigmatic behavior of supercritical fluids, a hybrid state of matter occupying a unique space between liquids and... gases, and arising in domains that go from the pharmaceutical industry to planetary science. The obtained results are at the limit of current experimental possibilities and could only be obtained in a high flux neutron source such as the Institut Laue-Langevin (ILL).
Omnidirectional colorIn the rapidly evolving field of photonics, an advancement has emerged from Korea, redefining the possibilities of structural color manipulation. Scientists have developed a pioneering technology... capable of omnidirectional wavelength tuning, which promises to revolutionize a myriad of tunable photonic applications.
Early humans took northernAn excavation on Timor reveals humans first settled on the island 44,000 years ago, long after the earliest occupation of Australia - suggesting migration to the latter took another route
Twist-angle in moiréIn a study published in Science Advances, Prof. Wang Can from the Institute of Physics of the Chinese Academy of Sciences and Prof. Xu Xiulai of Peking University have demonstrated for the first time... the dependence of valley polarization switching and polarization degree on the moiré period by twist engineering in electrically controlled transition metal dichalcogenide heterobilayers (hBLs).
Cows used for cuddling therapyCows seem to be more willing to lick and accept food from women, and are more likely to act aggressively around men
32 stunning centuries-oldArchaeologists and amateurs armed with metal detectors have discovered previous hoards from centuries past.
The tunable coupling of twoQuantum computers, computing devices that leverage the principles of quantum mechanics, could outperform classical computing on some complex optimization and processing tasks. In quantum computers,... classical units of information (bits), which can either have a value of 1 or 0, are substituted by quantum bits or qubits, which can be in a mixture of both 0 and 1 simultaneously.
22 jobs artificial generalArtificial Intelligence (AI) is set to improve the world for many -- but others may lose out.
X-ray laser fires mostThe Linac Coherent Light Source in California fired an X-ray pulse that lasted only a few hundred billionths of a billionth of a second but carried nearly a terawatt of power
Wildfire smoke is hitting theFires burning across Canada are already triggering U.S. air quality alerts in the Midwest and Plains.
No two are alike: The colossalThe massive statues likely depict rulers from the ancient Olmec civilization.
'Look at all this we don'tA new study begins to unpack an understudied aspect of brain biology and Alzheimer's disease.