Projector In Sunlight

Why do plants grow?

The answer is really simple, because they are living beings and all living things must grow before being able to reproduce and continue their species. By analogy with us, plants are starting to grow as children with the passage of time become men. Do not have children until they are big and adults.

To complement this question Why do plants grow? , I present a video I found and I found that gives a good response, in which we can see some comparisons with other living beings and the characteristics of the variety of plants we have on the planet.

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Where does a crying child?
From fear, helplessness.

A little cold and I remember many drops, filling the space between the garden and my door, between my school and home, between my hand and my kite. A little cold. A cloudy day in those that look the same throughout the city, because the colors seem to sleep and the cold canvas, memory hook. The drops running slow or stalled in the windshield. Eyes on the street and my mind looking for reasons, convincing reason which was perfect, when it was, what happened before. In the end, the corner, the engine stopped and the steps remaining on the wet pavement, smelling of suffocation. Some steps, a door, touch and eye expected. No answers sound, no interjections or questions. Only hope, shower rings and the minutes seem like forever. The magazine appears to have nothing in writing, then dreamed the same eyes, discovered the smoke and light green.




There are moments where the words left over, the silence seems too noisy to open the mouth. Over crowded roadways, causing cracks in the stairs nasty drawn. Then the cold, almost frozen lips and suddenly formed in my retinas in the light of those eyes discovered the smoke and light green. We knew it was time. Just close your eyes to feel the warming and lower lips touch her curves, caressing my cheek a brown tuft that was not mine but it was mine.

Then the drops are moving slowly or keep still on the windshield. The gray atmosphere, but the cold did not count.

a Monday, the rain had left the night and left his signature as known in the courtyard. The clouds have been killed, a little ray of sunshine. However, the cold again. Goodbye without conviction, the same eyes staring at the floor, the sky, to the left. The promise of return. The lack of strength to fade and settle the first feeling of fear.

Where is the cry of a man?
The fear, impotence, cold.

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why and how bats fly only at night?

These small winged beings do not need sunlight to make their daily activities. They pursue their lives in the evening between the houses and plants with unexpected rapidity, to catch the insects they devour in large numbers. Rozan at every instant a thousand obstacles, but always manage to avoid sudden movements and calculated.

A mysterious meaning guide them in the dark, allowing " see" the obstacles and avoid them in time, a sense of functionally very similar to the radar .

When flying, the bat emits a series of screams extremely acute, so acute that our ear can not perceive. If those screams his way hitting a sharp object or obstacle, the ultrasonic bounce and return back, reaching the bat's ear . All this takes place in the course of just a fraction of a second.

The bat hears, senses, calculates and immediately made a turn to avoid the obstacle.
Long before man, the winged mammal learned to use the same principle which underpins the operation of the radar .

The bat gets set even if the object with ultrasound encountered an obstacle or an insect, adjusting their flight to zoom in or out as appropriate. Which is amazing in every way.

As the bats
The bats are the only mammals really can fly long distances. Are grouped in an order called Chiroptera (Greek meaning Kheir ptero hand meaning wing).

remain hidden during the day, forming large colonies in cracks in walls and walls, attics, lofts, warehouses, towers and bridges, started its activity with the last light of evening. Lie dormant during the cold winter months, being observed also abroad in some sunny afternoons.

feeding on Lepidoptera (butterflies) and Coleoptera (beetles), also nocturnal habits.

bats size varies with species, from a wing span (measurement taken from tip to wing tip) of 12 cm and only 2 g of weight in the smaller species, up to 2 meters and about 2 kg in the largest.

His wings, supported mainly by the hand bones greatly elongated, are formed by extensions of the skin of the back and belly extending from the sides of the body, legs and tail. The wing is thin and elastic, only consists of two layers of skin a small amount of connective tissue through which pass the blood vessels and nerves.

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What are the world's fastest animal?

we all already know that there is a law in the animal kingdom, which is to catch other animals or to avoid being caught by them. In short, the law of the strongest.
In this plays an important role that each person develops speed. Here are some of these animals.

The gazelles antelopes are small or medium size, slender, with long legs and very thin, which allow high speeds. It usually lives in wide open plains with shrubs usually avoid areas with tall grass. The gazelle
can run 96 kilometers per hour.

birds are those that outpace the rest of animal species. The frigate bird frigate or, in normal flight goes so far, reached in nose dive a speed of 400 kilometers per hour.

The fastest of all mammals is the ounce or leopard hunter. This cat can develop a speed of 110 kilometers per hour.

Insects also have their champions in speed. The faster there, and here we can see, is the golden moscón , capable of flying at nearly 70 miles per hour. He follows the Sphinx , 55 miles per hour and the dragonfly to 50 mph.

Let the speed of some fish. Which surpasses all the flying fish , with 110 kilometers per hour, followed by swordfish , about 97 kilometers per hour. Others are tuna, 74 km. Per hour, the American trout , 72 km per hour and the dolphin , 61 km. Per hour.

The ostrich, although its not serve great wings to fly, that does not stop is not fast. This bird can reach running speeds of 80 km. hour.

is also very fast falcon, which can reach 314 km. per hour. Other birds Swifts are fast , 320 km. per hour, the swallow , 210 km. per hour, the gull , 180, and the pigeon 160 km. per hour.