Tag

Electrical Currents

All articles tagged with #electrical currents

physics2 years ago

"Unveiling the Bizarre Conductivity: Exotic Liquid-Like Electricity Flow in Strange Metals"

Researchers studying strange metals have discovered evidence that challenges our understanding of electrical currents. By conducting quantum measurement experiments on nanowires made of ytterbium, rhodium, and silicon, they found that the behavior of electrical currents in strange metals differs from that of normal metals. Instead of quasiparticles, the researchers observed a more liquid-like flow of charge, suggesting that the traditional model of quasiparticles may not apply in these materials. The findings support a theory proposed over 20 years ago and raise questions about how charge moves collectively in strange metals.

science2 years ago

Space storms disrupt train signals.

A modeling analysis by C. J. Patterson and colleagues shows that space storms, or geomagnetic disruptions, can interfere with electrical currents used to detect trains and send stop signals, potentially endangering passengers and freight. The study found that a strong enough space storm to disrupt railway signals occurs about once every 30 years along two modeled U.K. railway lines, and more extreme storms expected to occur once every 100 years can disrupt nearly all signals along both lines. The findings can help assess the vulnerability of trains to cosmic geomagnetic disruptions and raise awareness among operators.