A physicist has mounted one of the most detailed technical challenges yet against the idea that our universe is a computer simulation, arguing that the energy required to run such a program would ...

PROVIDENCE, R.I. — Superconductivity occurs when electrical current moves without resistance, a phenomenon that gave rise to particle accelerators, magnetic resonance imagining machines and trains ...

When electrons flow through a conductor — such as the copper wires in our phone chargers or the silicon chips in the circuit boards of our laptops — they collide with material impurities and with each ...