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Macro photography of a natural snowflake. A snowflake is a single ice crystal that is large enough to fall through the Earth's atmosphere as snow. [1] [2] [3] Snow appears white in color despite being made of clear ice. This is because the many small crystal facets of the snowflakes scatter the sunlight between them. [4]
The scale is an absolute temperature scale with the same increment as the Celsius temperature scale, which was originally defined according to the boiling point (set to 100 °C (212 °F)) and melting point (set to 0 °C (32 °F)) of water. Natural water consists mainly of the isotopes hydrogen-1 and oxygen-16, but there is also a small quantity ...
Increasingly, ski resorts are relying on snowmaking, the production of snow by forcing water and pressurized air through a snow gun on ski slopes. [94] Snowmaking is mainly used to supplement natural snow at ski resorts. [95] This allows them to improve the reliability of their snow cover and to extend their ski seasons from late autumn to ...
Snowflake’s albinism gave him white hair, pink skin, and blue eyes, similar to a human with albinism. Snowflake the world-famous white gorilla lived at the Barcelona Zoo for 36 years, fathering ...
Snow accumulation on ground and in tree branches in Germany Snow blowing across a highway in Canada Spring snow on a mountain in France. Classifications of snow describe and categorize the attributes of snow-generating weather events, including the individual crystals both in the air and on the ground, and the deposited snow pack as it changes over time.
A natural phenomenon is an observable event which is not man-made. Examples include: sunrise, weather, fog, thunder, tornadoes; biological processes, decomposition, germination; physical processes, wave propagation, erosion; tidal flow, and natural disasters such as electromagnetic pulses, volcanic eruptions, hurricanes and earthquakes. [1] [2]
Universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water and climate, as well as energy, radiation, electric charge and magnetism, not originating from civilized human actions. In contrast to the natural environment is the built environment.
Some of the animals with the best memories are dolphins that can recognize absent friends after a 20-year gap, whales that repeatedly navigate entire ocean worlds, apes capable of memorizing ...