5.5 Inch resin snowman sparkle gloss Christmas ornaments are dressed for a cold winter day.
A little antique bird house sets on the Christmas ornament snowman‘s hand. The high gloss snowman Christmas ornament has black charcoal eyes mouth and buttons, an orange carrot nose, a black stove pipe hat and a dark red and white neck scarf. The Christmas ornament snowman is warring a blue vest and green gloves on each hand. The snowman Christmas ornament has a gold lame cord as a Christmas tree hanger.
Information on Snow.
Almost everyone in the colder parts of the world know the shimmering ice crystals called snow. Snow is formed when the water vapor I clouds is turned into moisture at a temperature below freezing, 32 degrees F. If the temperature is above freezing, rain falls instead of snow. Snow does not always reach the earth in its original from. Sometimes the ice crystals are partly melted and reach the ground as sleet. Sometimes they are entirely melted ad fall as rain.
Snow forms crystals which always have six rays, but the designs are always different. No two snowflakes have ever been found to be exactly alike. Large snowflakes are combinations of these crystal fragments and have been know to measure four inches in diameter. Collecting some flakes, on a black surface and examining them under a magnifying glass may show the elaborate designs in snowflakes. Wilson A. Bentley made photographs of more than 6,000 snow and ice crystals at his home in Jericho, Vermont.
The white color of most snow is due to the reflection of light by the tiny surfaces of the crystals. Red snow and green snow have been known to fall in Greenland and a few other arctic regions. They get the red and green color from tiny living things in the snow. Snow is often colored black by dust particles.
There are millions of people in the world who have never seen snow, since it never falls on more than a third of the earth’s surface. There are parts of the southern United States where snow has never fallen.
Snow falls in all seasons in the polar regions. In the Temperate Zone, snow falls only during the winter. The heaviest snowfalls occur in the mountains of the Temperate Zone, such as the Rocky Mountains, the Sierra Nevada range in California and the Alps in Italy and Switzerland. These heavy snowfalls have always been dangerous to travelers. In Europe, houses of refuge provide emergency shelter for persons caught in snowstorms. Railroads are often blocked by snow slides in the western mountains of the United States, and roads may be closed to traffic for days. Powerful snowplows clear the roads and tracks.
Mountain snow is important because when it melts it provides water for streams, electric power plants and irrigation reservoirs. But the amount of water in snow is much less than in rain. It takes a snowfall of about ten inches to equal a rainfall of one inch.
In 1946 a research scientist, Vincent J. Schaefer of Schenectady, N.Y., created the first artificial snowflakes. Schaefer produced these flakes in a cold box into which he breathed. The moist air from his breath condensed into snow clouds, which he changed into snow by introducing an extremely cold rod into the cold box. Later Schaefer actually caused snow to fall in nature by using dry ice.
How a Bird Flies.
Most birds achieve take off by jumping vertically into the air. They then propel themselves forward with their extremely powerful wing and pectoral muscles, generating lift in the process. During flight the legs are retracted to create an aerodynamically efficient shape and to minimize drag. To slow down birds utilize drag by fanning the tail and lowering the legs. Just before landing the wings angle and tilt the body into an almost vertical position acting as brakes.