Millions of digital horses were clad in armour on April 3, 2006. The survivors of this phenomenon called this downloadable content purchase a “microtransaction.” They lived only to face new nightmares ...

Velocity is a fundamental property of rocks that depends on density and elastic moduli. It varies laterally as well as vertically due to the physical-geologic variations of rocks. Velocities are ...

Two-dimensional materials are substances with a thickness of a few nanometres or less. Electrons in these materials are free to move in the two-dimensional plane, but their restricted motion in the ...