Snow are able to grow to hundreds of micrometers or millimeters in size at the expense of the water droplets by the Wegener–Bergeron–Findeisen process. The corresponding depletion of water vapor causes the ice crystals to grow at the droplets' expense. These large crystals are an efficient source of precipitation, since they fall through the atmosphere due to their mass, and may collide and stick together in clusters, or aggregates. These aggregates are snowflakes, and are usually the type of ice particle that falls to the ground. Although the ice is clear, scattering of light by the crystal facets and hollows/imperfections mean
Myth of the flat Earth purgatory, and heaven, the earth is spherical with gravity being towards the center of the earth. As the Devil is frozen in a block of ice in the center of the earth, Dante and Virgil climb down the Devil's torso, but up from the Devil's waist to his feet, as his waist is at the center of the earth. Jeffrey Burton Russell rebutted the prevalence of belief in the flat Earth in a monograph and two papers. Louise Bishop states that virtually every thinker and writer of the 1000-year medieval period affirmed the spherical shape of the Earth. Although the