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Wednesday, November 10, 2010
Tuesday, November 9, 2010
Facts About Trees
• Trees receive an estimated 90% of their nutrition from the atmosphere and only 10% from the soil.
• Trees renew our air supply by absorbing carbon dioxide and producing oxygen.
• Trees lower air temperature by evaporating water in their leaves.
• A tree does not reach its most productive stage of carbon storage for about 10 years.
• One of the tallest soft wood trees is the General Sherman, a giant redwood sequoia of California. General Sherman is about 275 ft or 84 m high with a girth of 25 ft or 8 m.
• Dendrochronology is the science of calculating a tree’s age by its rings.
• A mature birch tree can produce up to 1 million seeds per year.
• Trees receive an estimated 90% of their nutrition from the atmosphere and only 10% from the soil.
• Trees grow from the top, not from the bottom as is commonly believed. A branch’s location on a tree will only move up the trunk a few inches in 1000 years.
• The largest area of forest in the tropics remains the Amazon Basin, amounting to 81.5 million acres.
• Tree leaves help trap and remove tiny particles of soot and dust which otherwise damages human lungs.
• By creating shade, trees moderate temperatures both globally and in the micro-climates of cities and counties.
• Trees create buffers to reduce noise.
• The presence of trees in urban neighborhoods has been linked to less crime.
• Tree roots stabilize soil and prevent erosion.
• The cottonwood tree seed is the seed that stays in flight the longest. The tiny seed is surrounded by ultra-light, white fluff hairs that can carry it on the air for several days.
• Tree rings provide precise information about environmental events, including volcanic eruptions.
• One acre of trees removes up to 2.6 tons of carbon dioxide each year.
• Trees improve water quality by slowing and filtering rain water, as well as protecting aquifers and watersheds.
Saturday, November 6, 2010
Facts About Pollution
Facts About Pollution
• The introduction of impurities into the environment that causes instability and harm to the ecosystem is called pollution. Pollution causes harmful effects to human body, animals and our environment and we are still not doing anything to stop it. Just thinking about economic growth only we keep throwing wastage here and there. So, we have to get together and have to do something on this very critical issue.
• Pollution may be of any kind such as land, air, water, etc becoming the most major cause of concern to the human race today. All kinds of pollutants have adverse effects on the ecosystem. Here are some facts about pollution.
• Industries and vehicles are considered as major sources of pollution and the countries that are contributing most in terms of these aspects are China, India and United states. Emissions from vehicles are producing around 70% of the air pollution. According to the data of 2007, emission of carbon dioxide in China was around 6.01 billion tons but it was 5.90 billion tons in America. India is one of the top 10 worst pollution producing countries in the world. The historical monument TajMahal whose color is getting yellow day by day proves the adversity of air pollution in India.
• According to research made by world health organization, around 2.4 million people die every year because of air pollution.
• Use of pesticides to kill pests and to enhance the growth of crop also has adverse effects on human health and environment. In US, farmers are using 2.2 billion pounds of pesticides annually.
• Garbage from land is contaminating water bodies. Many industries are still damping their wastes in water bodies like lake, oceans or rivers. Bacteria originated because of this are responsible for causing of about 250 million water borne diseases annually. Due to these diseases 5 to 10 million deaths are occurring every year.
• The introduction of impurities into the environment that causes instability and harm to the ecosystem is called pollution. Pollution causes harmful effects to human body, animals and our environment and we are still not doing anything to stop it. Just thinking about economic growth only we keep throwing wastage here and there. So, we have to get together and have to do something on this very critical issue.
• Pollution may be of any kind such as land, air, water, etc becoming the most major cause of concern to the human race today. All kinds of pollutants have adverse effects on the ecosystem. Here are some facts about pollution.
• Industries and vehicles are considered as major sources of pollution and the countries that are contributing most in terms of these aspects are China, India and United states. Emissions from vehicles are producing around 70% of the air pollution. According to the data of 2007, emission of carbon dioxide in China was around 6.01 billion tons but it was 5.90 billion tons in America. India is one of the top 10 worst pollution producing countries in the world. The historical monument TajMahal whose color is getting yellow day by day proves the adversity of air pollution in India.
• According to research made by world health organization, around 2.4 million people die every year because of air pollution.
• Use of pesticides to kill pests and to enhance the growth of crop also has adverse effects on human health and environment. In US, farmers are using 2.2 billion pounds of pesticides annually.
• Garbage from land is contaminating water bodies. Many industries are still damping their wastes in water bodies like lake, oceans or rivers. Bacteria originated because of this are responsible for causing of about 250 million water borne diseases annually. Due to these diseases 5 to 10 million deaths are occurring every year.
Facts About Light
Facts About Light
• The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (metres per second – that is equal to 186, 287.49 miles per second).
• It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth.
• Every second around 100 lightning bolts strike the Earth.
• Every year lightning kills 1000 people.
• The currently accepted value is 299 792 km/s based on several measurements.
• Red, green and blue are the primary colours of light. Mixing them in various ways will make all other colours, including white.
• Light is a form of energy which our sense of sight can detect. It is made of electro-magnetic radiation and travels in a straight path.
• The bending of light as it passes from one transparent substance to another, like air to water, is called refraction.
• When sunlight is intercepted by a drop of water in the atmosphere, some of the light refracts into the drop, reflects from the drop’s inner surface, and then refracts out of the drop. The first refraction separates the sunlight into its component colours, and the second refraction increases the separation. The result is a rainbow.
• There are different colours of light because they are light waves which have different wavelengths. Red light has the longest wavelength while violet light has the shortest wavelength.
• The light bulb was invented in 1879 by Thomas Alva Edison.
• When you turn on a light bulb only 10 per cent of the electricity used is turned into light, the other 90 per cent is wasted as heat.
• Low energy light bulbs last on average up to 12 times longer than traditional fluorescent bulbs.
• Low energy light bulbs last on average up to 12 times longer than traditional fluorescent bulbs.
• A heavy coat of dust can block up to half of the light.
• The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (metres per second – that is equal to 186, 287.49 miles per second).
• It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth.
• Every second around 100 lightning bolts strike the Earth.
• Every year lightning kills 1000 people.
• The currently accepted value is 299 792 km/s based on several measurements.
• Red, green and blue are the primary colours of light. Mixing them in various ways will make all other colours, including white.
• Light is a form of energy which our sense of sight can detect. It is made of electro-magnetic radiation and travels in a straight path.
• The bending of light as it passes from one transparent substance to another, like air to water, is called refraction.
• When sunlight is intercepted by a drop of water in the atmosphere, some of the light refracts into the drop, reflects from the drop’s inner surface, and then refracts out of the drop. The first refraction separates the sunlight into its component colours, and the second refraction increases the separation. The result is a rainbow.
• There are different colours of light because they are light waves which have different wavelengths. Red light has the longest wavelength while violet light has the shortest wavelength.
• The light bulb was invented in 1879 by Thomas Alva Edison.
• When you turn on a light bulb only 10 per cent of the electricity used is turned into light, the other 90 per cent is wasted as heat.
• Low energy light bulbs last on average up to 12 times longer than traditional fluorescent bulbs.
• Low energy light bulbs last on average up to 12 times longer than traditional fluorescent bulbs.
• A heavy coat of dust can block up to half of the light.
Facts About Flowers
Facts About Flowers
• The spice saffron comes from a certain type of crocus.
• Tulip bulbs can be used in place of onions for cooking.
• Women prefer pastel colored roses, men on the other hand prefer red.
• The creamy-white bloom of the magnolia tree was designated the state flower of Louisiana in 1900 because of the abundance of trees throughout the state. Magnolia is an evergreen and the flower is usually fragrant. After the six to twelve petals of the flower have fallen away the large cone shaped fruit of the magnolia is exposed.
• The cactus family is divided into more than 100 genera. For simplicity North American cacti are placed into five groups: the prickly pears, the saguaro cactus group, the hedgehog cacti, the barrel cacti, and the pin-cushion and fishhook cacti.
• Germany’s national flower, centaurea is related with the emperor of old Germany. It has been called the “Emperor’s flower”. Because of the authoritative language of the flower’s name, it naturally has been considered the national flower. Its status was not changed after the republic of Germany was established.
• The rose is the best-known symbol of beauty and love. A single rose signifies simplicity.
• Tulips are one of the fastest developing flowers. They can grow up to an inch a day after being cut.
• The scientific name for flowering plants is angiosperm, which means “seed bearing” from the Greek angos meaning “box” and sperm, “seed”, which comes from the ancient root “sper-”, meaning to scatter, from which we also get “sprout”.
• The spice saffron comes from a certain type of crocus.
• Tulip bulbs can be used in place of onions for cooking.
• Women prefer pastel colored roses, men on the other hand prefer red.
• The creamy-white bloom of the magnolia tree was designated the state flower of Louisiana in 1900 because of the abundance of trees throughout the state. Magnolia is an evergreen and the flower is usually fragrant. After the six to twelve petals of the flower have fallen away the large cone shaped fruit of the magnolia is exposed.
• The cactus family is divided into more than 100 genera. For simplicity North American cacti are placed into five groups: the prickly pears, the saguaro cactus group, the hedgehog cacti, the barrel cacti, and the pin-cushion and fishhook cacti.
• Germany’s national flower, centaurea is related with the emperor of old Germany. It has been called the “Emperor’s flower”. Because of the authoritative language of the flower’s name, it naturally has been considered the national flower. Its status was not changed after the republic of Germany was established.
• The rose is the best-known symbol of beauty and love. A single rose signifies simplicity.
• Tulips are one of the fastest developing flowers. They can grow up to an inch a day after being cut.
• The scientific name for flowering plants is angiosperm, which means “seed bearing” from the Greek angos meaning “box” and sperm, “seed”, which comes from the ancient root “sper-”, meaning to scatter, from which we also get “sprout”.
Facts About Plants
Facts About Plants
• A notch in a tree will remain the same distance from the ground as the tree grows.
• Banana oil is made from petroleum.
• 84% of a raw apple and 96% of a raw cucumber is water.
• The largest single flower is the Rafflesia or “corpse flower”. They are generally 3 feet in diameter with the record being 42 inches.
• Onions contain a mild antibiotic that fights infections, soothes burns, tames bee stings and relieves the itch of athletes foot.
• Quinine, one of the most important drugs known to man, is obtained from the dried bark of an evergreen tree native to South America.
• The rose family of plants, in addition to flowers, gives us apples, pears, plums, cherries, almonds, peaches and apricots.
• No species of wild plant produces a flower or blossom that is absolutely black, and so far, none has been developed artificially.
• Nutmeg is extremely poisonous if injected intravenously.
• The bright orange color of carrots tell you they are an excellent source of Vitamin A which is important for good eyesight, especially at night. Vitamin A helps your body fight infection, and keeps your skin and hair healthy.
• A plant’s stem appears and grows upward shortly after the primary root appears. It continues to grow above ground level.
• Water and minerals flow upward through the roots into the stem of the plant and then into the leaves of the plant.
• Pistils have three parts – the stigma, the style, and the ovary.
• Petals are usually colorful, and they attract insects and birds that help with pollination.
• Fruit is really the part of a flower in which seeds grow. Cherries, apples, and even milkweed pods are fruit.
• Buds are small swellings on a plant from which a shoot, leaf, or flower usually develops.
• The primary root is the first thing to sprout from a seed, and it grows downward.
• A seed contains its own food supply, which helps the sprouting plant as it begins its new life.
• Roots are covered with root hairs that absorb water and minerals.
• Grapes and clematis have stems that climb with tendrils, which hold onto a surface, as the stems get longer.
• A notch in a tree will remain the same distance from the ground as the tree grows.
• Banana oil is made from petroleum.
• 84% of a raw apple and 96% of a raw cucumber is water.
• The largest single flower is the Rafflesia or “corpse flower”. They are generally 3 feet in diameter with the record being 42 inches.
• Onions contain a mild antibiotic that fights infections, soothes burns, tames bee stings and relieves the itch of athletes foot.
• Quinine, one of the most important drugs known to man, is obtained from the dried bark of an evergreen tree native to South America.
• The rose family of plants, in addition to flowers, gives us apples, pears, plums, cherries, almonds, peaches and apricots.
• No species of wild plant produces a flower or blossom that is absolutely black, and so far, none has been developed artificially.
• Nutmeg is extremely poisonous if injected intravenously.
• The bright orange color of carrots tell you they are an excellent source of Vitamin A which is important for good eyesight, especially at night. Vitamin A helps your body fight infection, and keeps your skin and hair healthy.
• A plant’s stem appears and grows upward shortly after the primary root appears. It continues to grow above ground level.
• Water and minerals flow upward through the roots into the stem of the plant and then into the leaves of the plant.
• Pistils have three parts – the stigma, the style, and the ovary.
• Petals are usually colorful, and they attract insects and birds that help with pollination.
• Fruit is really the part of a flower in which seeds grow. Cherries, apples, and even milkweed pods are fruit.
• Buds are small swellings on a plant from which a shoot, leaf, or flower usually develops.
• The primary root is the first thing to sprout from a seed, and it grows downward.
• A seed contains its own food supply, which helps the sprouting plant as it begins its new life.
• Roots are covered with root hairs that absorb water and minerals.
• Grapes and clematis have stems that climb with tendrils, which hold onto a surface, as the stems get longer.
Facts About Birds
Facts About Birds
• The smallest bird is the Bee Hummingbird at 2.24 in (5.7cm) and 0.056 oz
• The longest latin name of any bird is Griseotyrannus aurantioatrocristatus, or the Crowned Slaty Flycatcher of South America.
• When active, a humming bird breathes around 300-500 times every minute. The heart of a humming bird makes up for around 20% of the body volume. The heartbeat ranges from 30-1500 per minute, depending on the specie and the activity.
• The Humming birds are the only birds that can fly backwards.
• The greater honeyguide leads the ratel or honey badger, to a bee’s nest by calling out and flying in front of it. The ratel eats the honey, then the bird eats the honeycomb wax.
• The Chameleon can focus its eyes seperately to watch two objects at once.
• The largest bird egg in the world today is that of the ostrich. Ostrich eggs are from 6 to 8 inches long. Because of their size and the thickness of their shells, they take 40 minutes to hard-boil.
• The average adult male ostrich, the world’s largest living bird, weighs up to 345 pounds.
• Humming birds are found in North and South America. In the north, they can be found as far as Alaska and in the south, they can be spotted as far as southern Chile.
• An amazing fact about the humming bird is that it can fly up, down, forward, backward and even upside down. A humming bird can rotate its wings from its shoulder blades, which enables it to hover and fly in different positions.
• Birds evolved from small meat-eating dinosaurs around 150 million years ago.
• Birds are a group of warm-blooded animals with two legs and front limbs modified as wings. The characteristic feature of all birds is the feather.
• There are over 9,200 species of birds known from around the world and they can be found in just about every habitat.
• Humming birds help in pollination as they carry pollen on their backs just like bees when they go from one flower to another in search of nectar. One humming bird visits around 1000-2000 flowers in a single day!
• Turkeys will peck to death members of the flock that are physically inferior or different.
• Only male turkeys (Toms) gobble, females make a clicking noise.
• The waste produced by one chicken in its lifetime can supply enough electricity to run a 100 watt bulb for five hours.
• An eagle can kill a young deer and fly away with it.
• California condors can fly 10 miles without flapping their wings.
• A bird’s heart beats 400 times per minute while they are at rest. When they are flying however, their heart could beat up to 1000 beats per minute.
• The Hooded Pitohui, which is a resident of Papua, New Guinea. You can find the poison in its feathers and in its skin.
• The now extinct Elephant Bird of Madagascar laid an egg that weighed 27 pounds.
• A bird’s normal body temperature is ususlly 7-8 degrees hotter than humans.
Tuesday, November 2, 2010
Aerial Photography
A collection of aerial photography produced by Yann Arthus-Bertrand
Cattle, Argentina
Coal mine in South Africa
Sha Kibbutz, Israel
Military cemetery in Verdun, France
Suburbs of Copenhagen, Denmark
Elephants on the savannah, Botswana
Ruins of the medieval city of Shali, Egypt
Switzerland
Gullholmen, Sweden
Denver, USA
Fraser Island dune, Australia
Amazon River, Brazil
Machu Picchu, Peru
Walled City of Dubrovnik, Croatia
Tasmania, Australia
Hashima Island,Japan
Stockholm,Sweden
Pigeon Houses Mit Gahmr Delta,Egypt
Varanasi,India
Freeways in Los Angeles,USA
Louver and Ile de la Cité in Paris,France
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