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Oct 6, 2022

Supercomputer simulations reveal how the Sun accelerates charged particles

Posted by in categories: particle physics, satellites, supercomputing

Research could help protect satellites and astronauts from the solar wind.

Oct 6, 2022

Lab-grown ‘mini-brains’ suggest COVID-19 virus can infect human brain cells

Posted by in categories: biotech/medical, health, neuroscience

A multidisciplinary team from two Johns Hopkins University institutions, including neurotoxicologists and virologists from the Bloomberg School of Public Health and infectious disease specialists from the school of medicine, has found that organoids (tiny tissue cultures made from human cells that simulate whole organs) known as “mini-brains” can be infected by the SARS-CoV-2 virus that causes COVID-19.

The results, which suggest that the virus can infect human cells, were published online June 26, 2020, in the journal ALTEX: Alternatives to Animal Experimentation.

Early reports from Wuhan, China, the origin of the COVID-19 pandemic, have suggested that 36% of patients with the disease show , but it has been unclear whether or not the virus infects human brain cells. In their study, the Johns Hopkins researchers demonstrated that certain human neurons express a receptor, ACE2, which is the same one that the SARS-CoV-2 virus uses to enter the lungs. Therefore, they surmised, ACE2 also might provide access to the brain.

Oct 6, 2022

Astronomers discover two stars in a daring stellar dance

Posted by in categories: energy, physics, space

That’s because as a white dwarf draws material away from its hydrogen-burning partner, the stolen gas follows the star’s magnetic field lines in a big, curving arc toward its new home. And in the process, it drains energy from the stars’ whirling dance (so do the gravitational waves produced by their rotation). When that happens, both stars fall toward the shared center of gravity they’re orbiting. Closer orbits also mean shorter orbits, so it takes the stars less time to complete a single lap.

And the closer the stars get, the stronger the gravitational waves they produce, which drains away more energy, so they fall even closer together. By the time they’re close enough to complete an orbit in just a handful of minutes, the donor star has usually run out of hydrogen. That’s why the really close, fast-orbiting cataclysmic binaries tend to be a white dwarf and a helium-burning star.

Oct 6, 2022

The world’s largest advanced compressed air energy storage is ready for commercial operation

Posted by in category: energy

The plant was developed by the Institute of Engineering Thermophysics (IET) of the Chinese Academy of Sciences and can generate more than 132 million kWh of electricity annually. This will see 40,000–60,000 households equipped with power during peak electricity consumption. From an environmental perspective, it also offers promising results, saving 42,000 tons of standard coal and reducing carbon dioxide emissions by 109,000 tons annually, stated IET.

What is CAES?

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Oct 6, 2022

Engineers created a safe micro-nuclear reactor that fits in the back of a truck

Posted by in categories: climatology, nuclear energy, sustainability

The new system uses molten salts instead of traditional fuel rods.

The world is rethinking nuclear power plants in the face of climate change. Your average plant produces 8,000 times more power than fossil fuels and is environmentally friendly. There’s one massive caveat, though, in the form of nuclear disasters, such as the 1986 Chernobyl incident and the 2011 Fukushima disaster.

Now, professor Matthew Memmott and colleagues from Bingham Young University (BYU) announced that they designed a new molten salt micro-reactor system that allows for safer nuclear energy production. As per a press release, it may also solve a number of other key issues related to nuclear energy production.

Continue reading “Engineers created a safe micro-nuclear reactor that fits in the back of a truck” »

Oct 6, 2022

Taiwan is turning unused metro stations into vertical farms

Posted by in categories: sustainability, transportation

The 40-square-meter hydroponic farm cultivates lettuce under LED lighting without using pesticides.

In an effort to provide passengers with amenities beyond transportation, Taiwan has chosen an unusual location for vertical farming, an underground metro station.

Nanjing Fuxing station in Taipei cultivates vegetables in a technologically advanced setting that assures precisely controlled humidity, temperatures, and other elements promoted as a method of cultivating unpolluted and healthy plants, Taiwan News reported on Wednesday.

Continue reading “Taiwan is turning unused metro stations into vertical farms” »

Oct 6, 2022

It’s been three years, but SpaceX’s Falcon Heavy might finally launch again this month

Posted by in categories: military, space

The massive launch system will carry a mysterious U.S. Space Force payload to a high-altitude geosynchronous orbit.

It’s been a while since SpaceX launched Falcon Heavy to orbit. A string of payload delays has stopped the heavy-duty rocket from hitting the launch pad since the summer of 2019.

Continue reading “It’s been three years, but SpaceX’s Falcon Heavy might finally launch again this month” »

Oct 6, 2022

US researchers grow brain organoids in a lab, just like they would develop in the fetus

Posted by in categories: biotech/medical, neuroscience

This could help us understand diseases better.

Researchers at the University of Utah have developed seed-sized brain organoids that can not only organize themselves but also provide us insights into the causes of autism, a press release said.

Organoids, tiny clusters of tissue derived from stem cells, allow researchers to replicate the complex organs outside the body while also controlling conditions around them… More.

Continue reading “US researchers grow brain organoids in a lab, just like they would develop in the fetus” »

Oct 6, 2022

For $25 million, you can now have a yacht that can dive underwater for up to four days

Posted by in category: habitats

Fiction will become reality at the 2022 Monaco Yacht Show.

Dutch yacht builder U-Boat Worx has unveiled the design of its $25 million superyacht, Nautilus.

More than 150 years ago, Jules Verne’s 20,000 Leagues Under the Sea first brought to our attention the possibility of a luxury yacht that could take an underwater dip at will. Over the years, the concept has been admired and looked up to by many engineers but building a real-world prototype has so far still been a dream.

Oct 6, 2022

Disposable electronics on a simple sheet of paper

Posted by in categories: biotech/medical, mobile phones, wearables

Discarded electronic devices, such as cell phones, are a fast-growing source of waste. One way to mitigate the problem could be to use components that are made with renewable resources and that are easy to dispose of responsibly. Now, researchers reporting in ACS Applied Materials & Interfaces have created a prototype circuit board that is made of a sheet paper with fully integrated electrical components, and that can be burned or left to degrade.

Most small electronic devices contain that are made from glass fibers, resins and metal wiring. These boards are not easy to recycle and are relatively bulky, making them undesirable for use in point-of-care , environmental monitors or personal wearable devices.

One alternative is to use paper-based circuit boards, which should be easier to dispose of, less expensive and more flexible. However, current options require specialized paper, or they simply have traditional metal circuitry components mounted onto a sheet of paper. Instead, Choi and colleagues wanted to develop circuitry that would be simple to manufacture and that had all the electronic components fully integrated into the sheet.

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