WHY is it quiet outside when it's snowing?Sound is a mechanical oscillation of a certain frequency that propagates in solid, liquid, and gaseous media. As the layer of freshly fallen snow grows,
more and more empty cells containing air appear between the snowflakes.
Sound waves hitting the snow layer are not reflected from it as well as, for example, from a solid homogeneous surface, and some of them are absorbed by the snow cover. But if the snow settles, the number of air cells will immediately decrease,
and the sound can be better reflected from the surface. That's why it's quietest outside when the snow is still soft and freshly fallen. After a few hours, the snow cover thickens, and the amazing silence and charm of the snowfall dissipates.
