source：learningenglishA recent study says there are enough rare earth metals on Earth for new “low-carbon electricity generation” technologies.Rare earth metals come from minerals found in countries around the world.The researchers said more mining is needed to make more of the valuable metals available to industry. Rare earth metals are in demand for products such as magnets, wind turbines, solar panels and computers. All are part of the “green energy” push to remove carbon gases from electricity generation.The researchers said the amount of minerals available is enough to supply a switch to ...
Release time:
2023
-
02
-
13
viewed：1
source：newscenterLithium-ion batteries have revolutionized electronics and enabled an accelerating shift toward clean energy. These batteries have become an integral part of 21st century life, but we’re at risk of running out before 2050. The main elements used in each battery – lithium, nickel, and cobalt metals as well as graphite – are increasingly scarce and expensive, and there is little environmental or fair-labor oversight of some of the remaining international supply chains.There is a pressing need to start reusing the materials we’ve already dug up and to make the battery production p...
Release time:
2023
-
02
-
10
viewed：1
source:https:fairplanet.orgScientists and researchers are embracing the use of non-harmful microbes-bacteria, fungi and algae to achieve a 'clean' recycling of electronic waste, as conventional methods have come under scrutiny for relying on toxic chemicals that are harmful to the environment and human health.The explosive ubiquity of electronic gadgets is becoming a growing a menace, as their disposal continues to pose a major threat to human health and the environment.Based on current figures, over 52 million tonnes of electronic waste are generated annually across the globe. In 2022...
Release time:
2023
-
02
-
07
viewed：0
UNEXPECTED DISCOVERY SEEMINGLY DEFIES LONG-HELD EXPERIMENTAL LAW OF PHYSICS, RESEARCH TEAM CLAIMS source:thedebriefA discovery involving variance in friction at different speeds between two different kinds of surfaces seemingly defies an experimental law of physics, according to newly published research.An international team of researchers with the University of Basel and Tel Aviv University report that friction between graphene structures against platinum surfaces appears to vary with speed, an observation which they say seemingly defies Coulomb’s law.Named after French physicist Charles...
Release time:
2023
-
02
-
06
viewed：1