snow crystals

In their most basic form, snow crystals are hexagonal prisms like the sample, above, but other, more complex forms are famously possible.

Clouds are made of countless water droplets, and sometimes these droplets collide with and stick to snow crystals.

Snow is a form of frozen water. It contains groups of ice particles called snow crystals.

All the different types of snow crystals can be found decorated with rime.

When snow crystals stick together, they produce snowflakes. Snowflakes come in different sizes.

As the temperature fluctuates snow crystals can change their properties.

Snow crystals acquire their special beauty when their simple six-sided symmetry blossoms.

When melting snow crystals or raindrops fall through very cold air , they freeze to form small particles of ice , called sleet .

When snow crystals stick together, they produce snowflakes.

Snow crystals form when tiny supercooled cloud droplets freeze.

Fresh snow is made largely of air trapped among the snow crystals.

Snow crystals produce snowflakes when they stick together.

In 1931 he would publish a book, "Snow Crystals" chronicling more than 2, 400 photographs of snowflakes.

All snow crystals have six sides, but they grow in different shapes.

Out of 3, 300 pictures of snow-crystals catalogued no two are exactly alike.

That variation, he believes, dictates the way snow crystals grow.

His groundbreaking 1931 book, 'Snow Crystals, ' recorded for posterity the beauty, fragility and lacy designs of 2, 500 snowflakes.

Observation and Analysis of the Aggregation Growth Among Ice-snow Crystals