Engineers at the SLAC National Accelerator Laboratory in California are putting the finishing touches on the world’s largest digital camera, which will be at the heart of the Vera C. Rubin Observatory.
Ultrasound sensors as small as a thumbnail can scan lithium-ion batteries to check their charge, health, and safety, a new study finds.
The findings suggest that ultrasound—that is, sound waves at frequencies higher than human hearing can detect—might one day help electric vehicles better estimate how much charge remains in their batteries. This approach might also help detect unstable batteries on the verge of disaster, quickly test battery quality during manufacturing, and identify which used batteries are healthy enough to be resold to reduce waste, says study lead author Hongbin Sun, an ultrasonic engineer at the Oak Ridge National Laboratory, in Tennessee.
Estimating how much charge is left in a commercial lithium-ion battery is currently a challenging task. For instance, electric vehicles typically experience an uncertainty of about 10 percent when estimating battery charge. This in turn reduces their driving range by about 10 percent, to ensure that they stay within their batteries’ safety margins.
Electric bees 🐝🌞
“When I looked at the data, I was kind of surprised to see that it had a massive effect,” says Hunting. It was already known that individual bees carry a small charge, but a voltage of this magnitude had never been documented in swarming honeybees before.
The team deployed additional electric field monitors in combination with video cameras to measure the electric field and swarm density, and waited for the bees at nearby hives to naturally swarm. The researchers recorded three swarms passing the monitors for around 3 minutes at a time. They found that the bee swarms created an electric charge ranging from 100 to 1,000 volts per metre. By analysing the proximity of bees to each other in the swarms, the team found that the denser the swarm, the stronger the electric field was.
Continue reading “Honeybee swarms generate more electricity per metre than a storm cloud” »
Egypt hides many secrets.
The modern country we see today was built atop thousands and thousands of years of history crafted by countless pharaohs and rulers that reigned over the land of the golden sands and the River Nile.
Continue reading “Wonders of Ancient Egypt: The Puzzling 100-Ton Stone Boxes of Saqqara” »
Turtles, unlike humans, do not continue to age once their bodies reach adulthood because they are “negligibly senescent.” It is theoretically possible for them to live indefinitely, although it is unlikely to happen in actuality. They will eventually die of injury, predation, or sickness. It has been documented that tortoises and their cousins, turtles, can live for up to two hundred years without showing any signs of aging. A turtle that is a hundred years old can experience the same feelings of youth as a tortoise that is thirty years old. This enviable trait may be found in both fish and amphibians. The idea of aging terrifies humans, and it is understandable why. Nobody wants to age slowly and painfully into a state of ill health and old age where death appears preferable to life. However, not everyone thinks this way. There are others who desire to live longer, perhaps even indefinitely. And while a life without aging might sound like something that could only be found in the pages of a fantasy story, research in the field of science suggests that this possibility is very much within our reach.
In today’s video we look at Live until 200 YRS OLD!! Scientific cures for “The Aging Disease!” ~ Healthicity…Keep watching to see aging, the ageing, the healthy aging, is an aging expert, is aging slower, and reverse aging, fighting aging, how to fight aging, anti aging, aging wired, wired aging, aging matters, aging questions, how to stop aging, science of aging, ageing research, anti aging, aging tech support, slow aging, aging women, what is aging, allure aging, aging beauty, active aging, disrupt aging, aging support, aging science, decoding aging, future of aging, aging with grace.
Continue reading “BREAKING NEWS!: Scientist discover how to live until 200 years old!” »
An international team of astronomers reports the detection of a new planetary system by observing a nearby star known as HD 18,599 (or TOI-179). It appears that this star is orbited by a Neptune-mass exoplanet and a massive sub-stellar object. The finding was detailed in a paper published October 14 on the arXiv pre-print server.
TESS is conducting a survey of about 200,000 of the brightest stars near the sun with the aim of searching for transiting exoplanets. So far, it has identified nearly 6,000 candidate exoplanets (TESS Objects of Interest, or TOI), of which 266 have been confirmed so far.
Now, a group of astronomers led by Silvano Desidera of the Astronomical Observatory of Padova, has recently confirmed another TOI monitored by TESS. They report that a transit signal has been identified in the light curve of a bright K-dwarf star—TOI-179 (other designations HD 18,599 and HIP 13754). The planetary nature of this signal was confirmed by follow-up observations using the High Accuracy Radial velocity Planet Searcher (HARPS) and Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE) instruments.
Scientists have shown that they can detect SARS-CoV-2, the virus that causes COVID-19, in the air by using a nanotechnology-packed bubble that spills its chemical contents like a broken piñata when encountering the virus.
Such a detector could be positioned on a wall or ceiling, or in an air duct, where there’s constant air movement, to alert occupants immediately when even a trace level of the virus is present.
Continue reading “COVID-causing virus in air detected with high-tech bubbles” »
The ability to analyze the properties of individual cells is vital to broad areas of life science applications, from diagnosing diseases and developing better therapeutics to characterizing pathogenic bacteria and developing cells for bioproduction applications. However, the accurate analysis of individual cells is a challenge, especially when it comes to a cell’s biophysical properties, due to large property variations among cells even in the same cell population as well as the presence of rare cell types within a larger population.
Addressing this need, Dr. Arum Han, Texas Instruments Professor II in the Department of Electrical and Computer Engineering at Texas A&M University, together with his graduate students and postdoctoral researchers, have developed a new technology that can accurately analyze cell properties through the use of a single-cell electrorotation microfluidic device, which utilizes an electric field to probe the cell’s properties.
The technology works by using an electric field to first capture a single cell in a microfluidic device, followed by applying a rotating electric field to rotate the trapped single cell and then measuring the speed of rotation. By knowing the input electric field parameters and analyzing the rotation speed, accurately analyzing the dielectric properties of a single cell becomes possible.
Light-pulse matter-wave interferometers exploit the quantized momentum kick given to atoms during absorption and emission of light to split atomic wave packets so that they traverse distinct spatial paths at the same time. Additional momentum kicks then return the atoms to the same point in space to interfere the two matter-wave wave packets. The key to the precision of these devices is the encoding of information in the phase ϕ that appears in the superposition of the two quantum trajectories within the interferometer. This phase must be estimated from quantum measurements to extract the desired information. For N atoms, the phase estimation is fundamentally limited by the independent quantum collapse of each atom to an r.m.s. angular uncertainty \(\Delta {\theta }_{{\rm{SQL}}}=1/\sqrt{N}\) rad, known as the standard quantum limit (SQL)2.
Here we demonstrate a matter-wave interferometer31,32 with a directly observed interferometric phase noise below the SQL, a result that combines two of the most striking features of quantum mechanics: the concept that a particle can appear to be in two places at once and entanglement between distinct particles. This work is also a harbinger of future quantum many-body simulations with cavities26,27,28,29 that will explore beyond mean-field physics by directly modifying and probing quantum fluctuations or in which the quantum measurement process induces a phase transition30.
Quantum entanglement between the atoms allows the atoms to conspire together to reduce their total quantum noise relative to their total signal1,3. Such entanglement has been generated between atoms using direct collisional33,34,35,36,37,38,39 or Coulomb40,41 interactions, including relative atom number squeezing between matter waves in spatially separated traps33,35,39 and mapping of internal entanglement onto the relative atom number in different momentum states42. A trapped matter-wave interferometer with relative number squeezing was realized in ref. 35, but the interferometer’s phase was antisqueezed and thus the phase resolution was above the SQL.
Researchers from North Carolina State University and The University of Texas at Austin have discovered a unique property in complex nanostructures that had previously only been seen in simple nanostructures. They have also uncovered the internal mechanics of the materials that allow for this property to exist.
The findings were reported in a recent paper that was published in the journal Proceedings of the National Academy of Sciences. The scientists found these properties in oxide-based “nanolattices,” which are tiny, hollow materials with a structure resembling that of sea sponges.
“This has been seen before in simple nanostructures, like a nanowire, which is about 1,000 times thinner than a hair,” said Yong Zhu, a professor in the Department of Mechanical and Aerospace Engineering at NC State, and one of the lead authors on the paper. “But this is the first time we’ve seen it in a 3D nanostructure.”
