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Wander Lord

Interesting on art, nature, people, history

Category Archive: It’s interesting

Stars – huge balls of fire

Stars – huge balls of fire

Stars – huge balls of fire


All stars are basically enormous balls of fire made up of gases which give off heat and light as they burn. Their power comes from nuclear energy.
The life of a star spans billions of years. It is born from clouds of dust and the element hydrogen. A protostar, glowing gas ball, becomes a star when hydrogen atoms combine to form helium. A star can continue to glow for millions of years. When the star finally runs out of hydrogen it starts to cool.
Red supergiants are stars run out of hydrogen. They explode in a violent blast, supernova, but in some cases they may become a black hole.
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Pegasus – winged horse

Pegasus - winged horse

Pegasus – winged horse


Pegasus was a winged horse in ancient Greek mythology. According to legend, he was created when the hero Perseus cut off the head of a frightful monster. Pegasus sprang from the monster’s blood.
A young man named Bellerophon wanted to ride Pegasus. The goddess of wisdom Athena helped him catch the flying horse. Bellerophon was unbeatable on Pegasus and even could kill the Chimera. It was a monstrous fire-breathing hybrid creature composed of the parts of lion, goat and dragon. Bellerophon became a hero. But once he decided to ride Pegasus up to Mount Olympus, the home of the gods. Pegasus threw Bellerophon to the ground and was rewarded with a home on Mount Olympus. The horse became the favorite of Zeus.
Pegasus was turned into a constellation.
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Animal Migration – Spectacular Spectacles

Animal Migration – Spectacular Spectacles

Animal Migration – Spectacular Spectacles

Animal migration is one of the most striking events in nature. Many mammals, birds, fish, insects, and other animals migrate from one place to another at certain times of the year. Migration is part of the life cycle of these animals.
Animals migrate for different reasons. They migrate to places where they can hibernate, or rest for the winter, breed or find food.
Animals can travel a few miles or several thousand miles. Migrations can take place either during the day or at night. Migrating animals can find their way over long and complex routes.
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Giants of wind energy

Giants of wind energy

Giants of wind energy

A windmill is a machine that harnesses the power of the wind. It may be used to grind grain into flour, to pump water, or to produce electricity.
The blades are mounted on a tall tower and spin around when wind blows on them. Blades are connected to a vertical shaft, which powers, for example, a water pump or millstones.
People in western Asia built the earliest known windmills more than 1,000 years ago. They spread to Europe by the 1100s. By the 1800s, however, many people used steam engines rather than wind power.
Today wind turbines produce electricity for many communities.
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Easter Island – Land of Giants

Easter Island - Land of Giants

Easter Island – Land of Giants


Easter Island is located in the eastern part of the Pacific Ocean. Today it is a part of Chile. The people who live on the island call it Rapa Nui. The first European visitors were the Dutch and they named it Paaseiland, meaning “Easter Island”, because they arrived there on Easter Sunday.
The island is only 14 miles long and 7 miles wide. It is world famous for its huge stone statues, moai. There are more than 600 moai that were carved after about AD 700. Many people believe that the statues honored important people who were revered as gods after their death. The statues average about 13 feet in height, 5 feet in width, and weigh an average of 14 tons.
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Extinct animals – silent reproach to mankind

The Caspian tiger disappeared in 1970

The Caspian tiger disappeared in 1970

Once a species becomes extinct, it is gone forever. The most common cause of extinction is a sudden, serious change in a species’ habitat. Floods, fires, droughts, volcanoes, and other natural events may be causes. People also change the environment: clear forests and drain wetlands, build cities on land that animals need to survive and create harmful pollution. Some species have been hunted to extinction.
Dinosaurs first appeared on Earth about 215 million years ago. By 65 million years ago, however, they had died out. Many scientists believe that a large asteroid caused this mass extinction. It hit Earth and thick dust blocked the sun. The dinosaurs could not survive the cold temperatures. But early species of birds and mammals did survive.
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Mercury – first of eight planets

Mercury - first of eight planets

Mercury – first of eight planets

Mercury is the first of eight planets and the smallest one. It is the closest planet to the Sun. It was named for the wing-footed Roman god. Mercury is visible to the naked eye from Earth. Mercury will either set within two hours of sunset, or rise no earlier than two hours before the Sun.
It is only slightly bigger than Earth’s Moon. Many different gases surround the planet. It has a very thin atmosphere of oxygen, potassium, and sodium vapors.
Planet’s hottest temperature is 400° C during a Mercurian day and its coldest is -173° C during a Mercurian night. This temperature variation is due to the fact that Mercury has essentially no insulating atmosphere.
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