Showing posts with label Science Daily. Show all posts
Showing posts with label Science Daily. Show all posts

Friday, June 23

Jupiterian Lightening


Scientists have recorded lightning on Jupiter in radio observations. Recently, however, a historic event occurred when the Juno space probe took the first-ever photograph of a Jupiterian lightning bolt.

Here's What We Know

A NASA freelancer accidentally discovered the lightning photo in the raw data collected by the spacecraft. The image was taken on December 30, 2020, when the probe flew close to the gas giant's north pole for the 31st time.

The lucky recipient of the photo is Kevin M. Gill. In 2022, he completed processing the data from the JunoCam. It is known that the picture was taken from an altitude of about 32,000 km.

In the near future, scientists will be able to get more photos of Jupiterian thunderstorms. This is because the spacecraft will regularly fly over the night side of the planet for several months.

Source: ScienceDaily

Tuesday, May 30

Long Lasting Phone Batteries


Phone batteries tend to wear out after only a few years, but the problems don’t end there: the batteries contain heavy metals, which can be damaging to the environment if they are disposed of incorrectly. And yet, figuring out how to dispose of your old phone correctly can be a daunting task. Luckily, researchers in Australia may have just found a way around all of that.


The team of researchers from the RMIT School of Engineering used a nanomaterial called MXene to create a battery that could last up to nine years. ScienceDaily reports that this battery could become a viable alternative to the industry standard lithium-ion batteries, which wear out very quickly and are a challenge to recycle.


MXene has high electrical conductivity, similar to graphene, but with even more benefits because of how malleable it is, according to the researchers.


“Unlike graphene, MXenes are highly tailorable and open up a whole range of possible technological applications in the future,” Professor Leslie Yeo, the lead senior researcher on the project, told ScienceDaily.  READ MORE...

Wednesday, March 9

Culture 40,000 Years Old


The migration of homo sapiens from Africa to the rest of the globe is an enduring point of fascination for archaeologists, who have been piecing together human movements across history since the dawn of the discipline. A new study published in Nature last week has helped unlock another piece of the puzzle.

That study, conducted by a research team led by Fa-Gang Wang, is an examination of Xiamabei, a 40,000-year-old archaeological site in northern China. At this site, researchers discovered evidence of a culture that processed ochre, which is used to make pigments. The discovery may seem like a small one, but it led the researchers to rethink how modern humanity evolved.

Ochre is a pigment found in clay, and its presence at archaeological sites suggests the people who lived in Xiamabei had advanced cognitive skills, partly because its points to creativity. However, the pigment can also be used to more practical ends, such as tanning hides.

At Xiamabei, researchers discovered that the humans at the site brought different deposits of ochre there and processed it through pounding and abrasion. This resulted pigments of varying color and consistency. Evidence of the pounding was found on a limestone slab where this processing took place. These humans produced such large quantities of ochre that the slab was stained with pigment.

The unique nature of the tools and processing method found at Xiamabei suggest that instead of one continuous wave of migration across Asia, colonization of this territory happened in distinct phases, the researchers said. “Our findings show that current evolutionary scenarios are too simple,” Michael Petraglia of the Max Planck Institute said in an interview with Science Daily. “Modern humans, and our culture, emerged through repeated but differing episodes of genetic and social exchanges over large geographic areas, rather than as a single, rapid dispersal wave across Asia.”

Another clue as to this disjointedness is what the researchers didn’t find: formal bone tools and ornaments, which were available at the time, but which evidently were not used by some of Xiamabei’s oldest inhabitants.