Discover how to build a simple electric train using just a copper coil, an AA battery, and disc magnets in this step-by-step ...

Copper remains a cornerstone metal in the global shift toward sustainable, electrified infrastructure. Indeed, copper prices soared to an all-time high in 2025, reaching roughly US $5.94 per pound ...

Abstract: Filling aneurysms with embolization coils is a widely used part of the treatment to stop intracranial aneurysm from rupturing. However, the effect of coiling on aneurysmal pressure has not ...