Scientists from King’s College London manage to grow a human tooth under laboratory conditions.
A team of chemical and biomolecular engineers, physicists and battery specialists affiliated with several institutions in the U.S. has developed a water-based battery that offers 2,000-cycle stability. In their paper published in the journal Nature Nanotechnology, the group outlines why they believe it could help bridge the gap between aqueous batteries and non-aqueous lithium-ion batteries.
The main advantage of using aqueous batteries is their safety compared to nonaqueous, lithium-ion batteries. They cannot ignite unexpectedly, minimizing fire hazard. The reason that they are not common is their reduction potential limit of aqueous electrolytes, which has restricted their energy density. Also, the current types of electrolytes they use tend to have problems with water shuttling the interface and high impedance.
In this new study, the research team has taken a step toward resolving these problems by improving ion transport and the stability of biphasic electrolytes via lithium ionophores.
Andrew Iams saw something strange while looking through his electron microscope. He was examining a sliver of a new aluminum alloy at the atomic scale, searching for the key to its strength, when he noticed that the atoms were arranged in an extremely unusual pattern.
“That’s when I started to get excited,” said Iams, a materials research engineer, “because I thought I might be looking at a quasicrystal.”
Not only did he find quasicrystals in this aluminum alloy, but he and his colleagues at the National Institute of Standards and Technology (NIST) found that these quasicrystals also make it stronger. They have published their findings in the Journal of Alloys and Compounds.
Euler Formula
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The Euler formula, sometimes also called the Euler identity (e.g., Trott 2004, p. 174), states.
Lasers are great for heating things up, whether you need to do it quickly, hit a precise target, or do it from a distance. Under specific conditions, lasers can also cool things down, and that might be JUST what we need to tackle way-too-toasty data centers.
Using the unique infrared sensitivity of NASA’s James Webb Space Telescope, researchers can examine ancient galaxies to probe secrets of the early universe. Now, an international team of astronomers has identified bright hydrogen emission from a galaxy in an unexpectedly early time in the universe’s history. The surprise finding is challenging researchers to explain how this light could have pierced the thick fog of neutral hydrogen that filled space at that time.
The Webb telescope discovered the incredibly distant galaxy JADES-GS-z13-1, observed to exist just 330 million years after the big bang, in images taken by Webb’s NIRCam (Near-Infrared Camera) as part of the James Webb Space Telescope Advanced Deep Extragalactic Survey (JADES). Researchers used the galaxy’s brightness in different infrared filters to estimate its redshift, which measures a galaxy’s distance from Earth based on how its light has been stretched out during its journey through expanding space.
Amodei stressed that the integration of AI into daily life in the coming years should be a boon to humanity, not a menace or a job-destroying machine.