Category Uncategorized

A combination of battery technology and catalysis opens new avenues for cheap, high-capacity batteries. Lithium-sulfur batteries can potentially store five to 10 times more energy than current state-of-the-art lithium-ion batteries at much lower cost. Current lithium-ion batteries use cobalt oxide as the cathode, an expensive mineral mined in ways that harm people and the environment. Lithium-sulfur batteries replace cobalt oxide with sulfur, which is abundant and cheap, costing less than one-hundredth the price of cobalt.

But there’s a catch: Chemical reactions, particularly the sulfur reduction reaction, are very comple...

The lunar sample returned by China’s 2020 lunar mission contained minerals that provide clues to their origin. China’s Chang’e-5, the first lunar sample return mission since the Soviet Union’s Luna 24 in 1976, delivered 1.73 kilograms of regolith from the Oceanus Procellarum, a plane named for its vast size. The sample landed with CE-5 in late 2020 and included a new mineral, Changesite-(Y), as well as a perplexing combination of silica minerals. Researchers now compare CE-5’s material composition to other lunar and Martian regolith samples and examine potential causes and origins for the lunar sample’s unique makeup.

Earth’s moon achieved its Swiss cheese appearance from celestial objects crashing into ...

Research reveals potential of using low-intensity focused ultrasound for pain management. Scientists have found soundwaves from low-intensity focused ultrasound aimed at a place deep in the brain called the insula can reduce both the perception of pain and other effects of pain, such as heart rate changes.

You feel a pain, so you pop a couple of ibuprofen or acetaminophen. If the pain is severe or chronic, you might be prescribed something stronger — an opioid pain killer that can be addictive under some circumstances.

But what if you could ease pain by non-invasively manipulating a spot inside your brain where pain is registered?

A new study by Wynn Legon, assistant professor at the Fralin Biomedical Research Institute at VTC, and his team points to that possibility.

The ...

Researchers from Osaka University and IMRA AMERICA use a stimulated Brillouin scattering laser to generate the signals needed by sub-terahertz transmitters and receivers, enabling super-high communication speeds for our tablets and phones.

Researchers demonstrated a 300 GHz-band wireless link that was able to transmit data over a single channel at a rate of 240 gigabits per second. The wireless communication system employs signal generators based on lasers that have ultra-low phase noise in the sub-terahertz band. This rate is the highest so far reported at these frequencies and is a substantial step forward in 300 GHz-band communications for 6G networks.

From coffee-shop customers who connect their laptop to the local Wi-Fi network to remote weather monitoring stations in the A...