Menu

Blog

Page 4818

Jul 22, 2022

Another hydrogen transport powder emerges, promising double the density

Posted by in categories: chemistry, energy

Stir this silicon-based powder into water, and hydrogen will bubble out, ready for immediate use. Hong Kong company EPRO Advance Technology (EAT) says its Si+ powder offers an instant end to the difficulties of shipping and storing green energy.

This is the second powdered hydrogen advance we’ve learned about this week, designed to solve the same problems: transporting hydrogen is difficult, dangerous and expensive, whether the costs are for cryogenic cooling in a liquid hydrogen system, or for compression to around 700 times the normal sea-level air pressure.

Continue reading “Another hydrogen transport powder emerges, promising double the density” »

Jul 22, 2022

Chemistry breakthrough offers unprecedented control over atomic bonds

Posted by in categories: chemistry, nanotechnology, particle physics

In what’s being hailed as an important first for chemistry, an international team of scientists has developed a new technology that can selectively rearrange atomic bonds within a single molecule. The breakthrough allows for an unprecedented level of control over chemical bonds within these structures, and could open up some exciting possibilities in what’s known as molecular machinery.

Molecules are made up of clusters of atoms, and are the product of the nature and arrangement of those atoms within. Where oxygen molecules we breathe feature the same repeating type of atom, sugar molecules are made of carbon, oxygen and hydrogen.

Scientists have been pursuing something called “selective chemistry” for some time, with the objective of forming exactly the type of chemical bonds between atoms that they want. Doing so could lead to the creation of complex molecules and devices that can be designed for specific tasks.

Jul 22, 2022

Australian startup unveils scalable shade solution for commercial applications

Posted by in category: futurism

From pv magazine Australia

Sydney-based manufacturer Canyon Solar has launched a modular solar carport solution for commercial applications that has been specifically designed for rapid installation with company director Will Beaumont claiming the time-saving translates into a significant reduction in site labor requirements and a corresponding cost saving for clients.

Jul 22, 2022

TSMC and ASML: Demand for Chips Remains Strong, But Getting Fab Tools Is Hard

Posted by in categories: computing, materials

Microplastics, tiny particles of plastic that are now found worldwide in the air, water, and soil, are increasingly recognized as a serious pollution threat, and have been found in the bloodstream of animals and people around the world.

Jul 22, 2022

Silk offers alternative to some microplastics

Posted by in categories: chemistry, engineering, food

Microplastics, tiny particles of plastic that are now found worldwide in the air, water, and soil, are increasingly recognized as a serious pollution threat, and have been found in the bloodstream of animals and people around the world.

Some of these microplastics are intentionally added to a variety of products, including agricultural chemicals, paints, cosmetics, and detergents—amounting to an estimated 50,000 tons a year in the European Union alone, according to the European Chemicals Agency. The EU has already declared that these added, nonbiodegradable microplastics must be eliminated by 2025, so the search is on for suitable replacements, which do not currently exist.

Now, a team of scientists at MIT and elsewhere has developed a system based on silk that could provide an inexpensive and easily manufactured substitute. The new process is described in a paper in the journal Small, written by MIT postdoc Muchun Liu, MIT professor of civil and environmental engineering Benedetto Marelli, and five others at the chemical company BASF in Germany and the U.S.

Jul 22, 2022

Bananas and salmon help counter effect of salt in women’s diet, study finds

Posted by in categories: biotech/medical, food

Eating foods such as bananas, avocados and salmon could help reduce the negative effects of salt in women’s diet, research suggests.

The study found that potassium-rich diets were associated with lower blood pressure, particularly in women with high salt intake.

Jul 22, 2022

Assembling the first global map of lunar hydrogen

Posted by in categories: particle physics, space

Using data collected over two decades ago, scientists from the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, have compiled the first complete map of hydrogen abundances on the Moon’s surface. The map identifies two types of lunar materials containing enhanced hydrogen and corroborates previous ideas about lunar hydrogen and water, including findings that water likely played a role in the Moon’s original magma-ocean formation and solidification.

APL’s David Lawrence, Patrick Peplowski and Jack Wilson, along with Rick Elphic from NASA Ames Research Center, used orbital data from the Lunar Prospector mission to build their map. The probe, which was deployed by NASA in 1998, orbited the Moon for a year and a half and sent back the first direct evidence of enhanced at the lunar poles, before impacting the .

When a star explodes, it releases , or high-energy protons and neutrons that move through space at nearly the speed of light. When those cosmic rays come into contact with the surface of a planet, or a moon, they break apart atoms located on those bodies, sending protons and neutrons flying. Scientists are able to identify an element and determine where and how much of it exists by studying the motion of those protons and neutrons.

Jul 22, 2022

150,000 Qubits Printed On a Chip

Posted by in category: quantum physics

Jul 22, 2022

Alzheimer’s: Targeting key protein in blood may slow progression

Posted by in categories: biotech/medical, neuroscience

A new study in mouse models of Alzheimer’s suggests that replacing blood containing amyloid-beta with fresh, healthy blood, may have therapeutic potential.

Jul 22, 2022

Restoring Hearing With Beams of Light

Posted by in category: biotech/medical

Gene therapy and optoelectronics could radically upgrade hearing for millions of people.