It is known that some 2D spin-lattice Hamiltonians are “universal” simulators, in the sense that they can simulate any target Hamiltonian, but only at the cost of an exponential overhead. Here, the ...

Besides hiding from enemy drones, Norwegian reconnaissance soldiers trial their own unmanned craft to spy on adversaries.

April 23, 2026 • The AI models and chatbots that we interact with tend to affirm our feelings and viewpoints — more so than people do, with potentially worrisome consequences.

Airplane Simulator is a popular sim (who'd have thought?) that lets you step into the shoes of a pilot and fly an aeroplane. It features over 100 realistic aeroplanes and provides an immersive ...