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Types of Volcanoes

Volcanoes act out in every possible way. Like a moody person, they can erupt in violence or steam silently, lazily creep along, or self-destruct.

A volcano’s origin determines its temperament. Many volcanoes erupt along subduction zones. Here, the great tectonic plates of our planet’s surface push against one another. Along this margin where one plate is rolled beneath another, we find the most violent volcanoes. >>MORE..<<

How to freshen your mind

Is your daily routine seem boring? Wake up in the morning, then go to work, then come home late at night and then went to bed. The next day, you re doing the same routine. Of course this will make your days be felt very boring.

In order that you do not feel bored with the routine, we recommend that you try to refresh your mind and body in the following ways:

1. Perform exercise in the morning
The number one way to freshen up your routine is to set your alarm an hour early and slipped the cardio session there. Exercising in the morning will increase the hormone endorphin, so you’ll feel great all morning. Fat is also burned more efficiently in the morning, so the body looks better in the long term. One more,
healthy body stress will disappear.

2. Have sex outside the bedroom
Having sex in a location other than the bedroom, for example in a kitchen or bathroom. Will provide new sensory experiences and help you find hot new position, so that boredom is lost, a new excitement came.

>>For more, here<<

Has there ever been life on Mars?

It’s a question that has challenged scientists since the 1890s.The eccentric and wealthy Percival Lowell pointed his powerful telescopes at the red planet and claimed to see man-made canals. A flood of alien fantasy followed and persisted into the 1970s.

The Viking I and II spacecrafts landed on Mars in the late 60s and early 70s in pursuit of evidence that life had once existed here.

Viking images provided the first glimpses of what looked like riverbanks. Tall mountains loomed higher than Everest on a planet a third the size of Earth. And polar ice caps locked up oceans of water.

But Viking’s probes proved only that Mars is a cold world ravaged by violent dust storms. Questions remained. Did the spacecrafts miss vital clues to a past some 4 billion years old? Did life gain a foothold when the planet was warmer and wet? >>more<<

Warming at the end of the last Ice Age reduced the Earth’s glaciers

A glacier begins when snow begins to fall faster than it melts. As the snow accumulates weight, it compresses.

The light, fluffy crystals turn into firn, a dense, grainy ice. As years go by, the weight of accumulated snow on top increases. The ice begins to move under its own weight. No speeding tickets here – the glacier moves under one inch per day. The bottom layer, slowed by the ground, moves less than the top.

The strain cracks the ice, creating giant crevasses. Warming at the end of the last Ice Age reduced the Earth’s glaciers, but it didn’t get rid of them. Today, more than onetenth of the land is still covered in ice. And that ice holds a wealth of information. Scientist Keith Ecklemeyer measures Columbia Glacier in Alaska yearly in order to get a jump on global climate trends.

Columbia has retreated 8 miles from its terminal moraine, the pile of rubble left at the end of the glacier. As it shrinks, it calves huge icebergs off into the sea. No one knows for sure whether this is from global warming, or just part of the natural cycle of temperature and ice.

>>here for more<<

relationship between ants and fungus

The relationship between the ants and the fungus is exclusive. Neither one is found in nature without the other. The ants cut discs out of leaves and carry them to underground nests. Then they shred them and use them for growing the fungus. Inside the huge subterranean fungus gardens, thousands of ants work to cultivate the fungus for food.

The ants cannot digest the plant molecules in the leaves, but the fungus can. So it grows and provides a source of food for the ants. The fungus benefits from this arrangement, too. The ants provide it with a constant supply of food. Each ant in the leafcutter ant colony has a specific job to do and knows how to do it instinctively. The largest ants are the gatherers. They brave the outside world to cut the discs out of leaves. Then they carry them back to the nest. >>here for more<<

Fuel Cell Technology

Over the last century, we’ve gone from the horse and buggy to a world teeming with hundreds of millions of automobiles. From the Model T to the latest racecars, one thing remains the same: the internal combustion engine. In these engines, a fine mist of gasoline is sprayed into the piston chamber. When a spark is added, the mixture of air and fuel explodes, driving the piston down and spinning the crankshaft.

As the piston moves back up, it pushes the remnants of the explosion out of the piston, and the cycle repeats. Take the unburned fuel and carbon monoxide in that exhaust, multiply it by the number of cars on the roads, and you can see why the automobile is considered such a serious threat to the environment.

What if we could power our cars with a different sort of reaction? One that runs cheaper and cleaner than any engine yet?

>>for more<<

Diamond Carbons, a natural form called allotrope

It may be hard to believe that the graphite in your pencil is made of the same stuff as these diamonds. But carbon is an element with many guises, including all living creatures. When an element like carbon exists in several natural forms, each form is called an allotrope.

One of the best-known carbon allotropes is diamond, the hardest of all natural materials and among the most beautiful. Diamonds begin at least 100 miles underground.

There, pressure 5,000 times greater than surface pressure and temperatures nearly hot enough to melt iron transform carbon into diamonds. And there they stay, until blown to the surface by the spew of a particular kind of volcanic eruption: a kimberlite eruption. >>click here for more..<<

How animals keep their body temperature within a certain range to survive

Animals, like people, must keep their body temperature within a certain range to survive. In the harshest environments, some have developed remarkable ways to cope with heat and do just that.

Elephants live in hot places and evolved a number of mechanisms for keeping cool. One way is through its skin, which is several sizes too big for its body. Heat energy is lost through the skin, so the more skin, the better. The wrinkles that cover an elephant give it a greater area from which excess heat can escape. >>here, for more<<

Sharks, the undersea killer machines

Oceans cover 70 percent of the Earth’s surface and hold more than 20,000 species of fish. Of these, some 370 species are sharks! Long before dinosaurs existed, sharks roamed the waters. They first originated more than 400 million years ago and have changed very little in the last 100 million years.

>>click for more and video<<