Fractal study describes COVID-19 transmission pattern

The most widely used model to describe the epidemic evolution of a disease over time is called SIR, short for susceptible (S), infected (I), and removed (R). A susceptible person can be infected, and the infected person will ...

Study uses thermodynamics to describe expansion of the universe

The idea that the universe is expanding dates from almost a century ago. It was first put forward by Belgian cosmologist Georges Lemaître (1894–1966) in 1927 and confirmed observationally by American astronomer Edwin Hubble ...

Solid or liquid? Researcher proposes a new definition of glass

Is glass a solid or a liquid? This question, which has been vigorously debated by specialists in the field for some decades, has just been answered anew: "Glass is a non-equilibrium, non-crystalline state of matter that appears ...

page 2 from 40