why can we smell something after it has rained..??????

The characteristic smell in the air that follows a recent shower is down to bacteria. These didn't come down in the last shower (!) but instead they're a family of ubiquitous filamentous soil-dwellers called the actinomycetes. This bacterial species make tiny "spores", which are metabolically inert or dormant forms of the bacteria and which remain resident in the soil when the ground dries out.

The purpose of these spores is to enable the organism to survive dessication and other severe conditions for extended periods of time. When it rains the water hitting the ground ejects millions of them into the air where they drift up peoples' noses, contributing to the fresh and earthy smell of a recent shower.

As a rule they don't pose a threat to humans - at least not to people with a healthy immune system - and making the air smell is not their primary goal. What will actually happen shortly after the shower is that the newly uncovered and dampened spores will settle back onto the ground and germinate. So you could look upon this process as part of the way that they disperse and spread themselves around the planet.

Most weird earth natural phenomenon.......

Aurora Borealis

Undoubtedly one of the most beautiful events to occur in our world, the Aurora Borealis, also known as the Northern Lights, has both astounded and amazed people since it was first discovered. 

Mammatus Clouds

They are a cellular pattern of pouches hanging underneath the base of a cloud. Composed primarily of ice, Mammatus Clouds can extend for hundreds of miles in each direction. Mammatus clouds are often harbingers of a coming storm or other extreme weather system.
Red Tides

More correctly known as an algal bloom, the so-called Red tide is a natural event in which estuarine, marine, or fresh water algae accumulate rapidly in the water column and can convert entire areas of an ocean or beach into a blood red color.

Penitentes

These amazing ice spikes, generally known as penitentes can be found on mountain glaciersand vary in size dramatically. Initially, the sun’s rays cause random dimples on the surface of the snow.

Sailing Stones

Rocks weighing up to hundreds of pounds have been known to move up to hundreds of yards at a time. Some scientists have proposed that a combination of strong winds and surface ice account for these movements.
Supercells

Super cell are usually isolated storms, which can last for hours, and sometimes can split in two, with one storm going to the left of the wind and one to the right. They can spout huge amounts of hail, rain and wind and are often responsible for tornados.

Fire Whirls

A fire whir is a rare phenomenon in which a fire, under certain conditions acquires vertical vortices and forms a whirl of a vertical orientation rotating column of air. They can be as high as 30 to 200 ft tall.

Ice Circles

Ice Circles are formed when surface ice gathers in the center of a body of water rather than the edges. A slow moving river current can create a slow turning eddy, which rotates, forming an ice disc. These ice circles have been seen with diameters of over 500 feet.

Gravity Waves

The undulating pattern of a Gravity Wave is caused by air displaced in the vertical plain, usually as a result of updrafts coming off the mountains or during thunderstorms. Nature then tries to restore the fluid changes caused by updrafts within the atmosphere, which present in a visible oscillating pattern within the cloud.

Fire Rainbow

Fire rainbow appears when the sun is high in the sky and its light passes through diaphanous, high-altitude cirrus clouds made up of hexagonal plate crystals.

Dangerous.....

Here is a list of some of the most dangerous natural disasters in pictures. The pictures below show how much terror these calamities create when they strike. Take a look.

Fright Night – (Lighting)

Forest Fire

Volcanic Eruptions

Avalanche

Volcanic Ash

Hurricanes

SandStroms

Tsunami

Tornado

Earthquake

animal love (must see)!!!!

just awesum nature favours love♥!♥!♥


cute macaws deeply in♥

awwwwwwwww!!!!!luk at it!!!!!!

loves in air just like dese beauty of birds.......

Swan lovee

love in white snoww

u r d best things dats ever been mine!!!

welll dats d end...........
♥♥♥♥♥♥♥

Bermuda Triangle !!!!!!!

The Bermuda Triangle, also known as the Devil's Triangle, is a region in the western part of the North Atlantic Ocean where a number of aircraft and surface vessels allegedly disappeared mysteriously.Popular culture has attributed these disapperarances to the paranormal activity or activity by extraterrestrial beings.The earliest allegation of unusal disappearances in the Bermuda area apperared on September 16,1950.One explanation pins the blame on leftover technology from the mythical lost continent of Atlantis.

5 DAngerus places to live

5. The African Lake of Death: Lake Kivu

the main oncern is of toxic gases which can suffocate people to death .The origin of the gases is not yet found......

the gases have the capacity to burn probably anyting....

4.Hurricane Capital of the World: Grand Cayman

Grand Cayman, the largest of the three Cayman isles, is hit or brushed by at least one hurricane every 2.16 years, more than any other locale in the Atlantic basin. Since 1871, 64 storms have battered the low-lying limestone formation, often with catastrophic results.


3.somaliA


people here live wid no shelter,no food,no clothes.It is regarded as one of the poorest country.It is also the worst place for children........


2. The Mountain of Fire: Mount Merapi, Indonesia


Even during its most tranquil periods, Mount Merapi, on the island of Java, smolders. Smoke ominously floats from its mouth, 10,000 feet in the sky. “Fire Mountain,” as its name translates to English, has erupted about 60 times in the past five centuries, most recently in 2006. Before that, a 1994 eruption sent forth a lethal cloud of scalding hot gas, which burned 60 people to death. In 1930, more than 1000 people died when Merapi spewed lava over 8 square miles around its base, the high death toll being the result of too many people living too close.

1. China’s Creeping Sandbox: Minquin County, China

As of 2004, the deserts were approaching at a rate of 10 meters per year. With more than 130 days of wind and dust each year, that rate is unlikely to slow. Faced with rapid desertification, the Chinese government has begun relocating displaced farmers, as arable land has decreased from 360 square miles to fewer than 60.

7 dangerous airports!!

7. Lukla Airport (Nepal)
A huge mountain on one end, a thousand meter drop on the other. And it’s at 2900 meters elevation, so you don’t exactly have full power.
Lukla Airport is a small airport in the Town of Lukla in eastern Nepal. In January 2008, the government of Nepal announced that the airport would be renamed in honor of Sir Edmund Hillary, the first person to reach the summit of Mount Everest, who passed away on January 11, 2008. The airport is quite popular as Lukla is the place where most people start their trek to climb Mount Everest.



















6. Madeira Airport (Madeira)
Madeira Airport also known as Funchal Airport and Santa Catarina Airport, is an international airportlocated near Funchal, Madeira. The airport controls national and international air traffic of the island of Madeira.
The airport was once infamous for its short runway which, surrounded by high mountains and the ocean, made it a tricky landing for even the most experienced of pilots. The original runway was only 1,400 metres in length, but was extended by 400 metres after the TAP Air Portugal Flight 425 incident of 1977 and subsequently rebuilt in 2003, almost doubling the size of the runway, building it out over the ocean. Instead of using landfill, the extension was built on a series of 180 columns, each being about 70m tall.
For the enlargement of the new runway the Funchal Airport has won the Outstanding Structures Award, given by International Association for Bridge and Structural Engineering (IABSE). The Outstanding Structures Award is considered to be the “Oscar” for engineering structures in Portugal.





5. Barra International Airport (Barra)
Barra Airport is the only airport in the world where planes land on the beach. BRR is situated in on the wide beach of Traigh Mhor, on Barra island, in the Outer Hebrides, Scotland. If you want to fly here commercially you will want to book with British Airways, which flies to Barra from Glasgow and Benbecula.

The airport is literally washed away by the tide once a day, and if you arrive on a late afternoon flight, you may notice a couple of cars in the parking lot with their lights on, which provides pilots some added visibility, since the airport is naturally lit. Needless to say you probably don’t want to hang out at Barra Airport beach, unless you are a aviation junkie, in which case Barra Airport has a fool proof system, as sign that reads: “Keep off the beach. When the windsock is flying and the airport is active.”



















4. Gustaf III Airport (St. Bart)
Gustaf III Airport also known as Saint Barthélemy Airport is a public use airport located in the village of St. Jean on the Caribbean island of Saint Barthélemy. Both the airport and the island’s main town ofGustavia are named for King Gustav III of Sweden, under whom Sweden obtained the island from France in 1785 (it was sold back to France in 1878). The airport is served by small regional commercial aircraftand charters. Most visiting aircraft carry fewer than twenty passengers, such as the Twin Otter, a common sight around Saint Barth and throughout the northern West Indies. The short airstrip is at the base of a gentle slope ending directly on the beach. The arrival descent is extremely steep over the hilltop traffic circle and departing planes fly right over the heads of sunbathers (although small signs advise sunbathers not to lie directly at the end of the runway).





3. Courchevel (France)
Courchevel is the name of a ski area located in the French Alps, the largest linked ski area in the world. It’s airport has a certain degree of infamy in the aviation industry as home to a relatively short runway, with a length of 525 m (1,722 ft) and a gradient of 18.5%. It’s so short that you have to land on an inclined strip to slow down and take off on a decline to pick up enough speed.

Who gets to land here? Well, Pierce Brosnan made the short list. This was the airport used in the opening seen of Tomorrow Never Dies. For the rest of us, private plane, helicopter, or charter are the only ways to go, and your pilot is going to need some serious training before he or she is allowed to land at CVF.



























2. Juancho E. Yrausquin Airport (Saba)
Juancho E. Yrausquin Airport is the only airport on the Caribbean island of Saba, in the Netherlands Antilles. It is well known among experienced fliers for the way in which airplanes must approach or take off from the airport.

Yrausquin Airport covers a relatively large portion of the small island of Saba. Some aviation experts are of the general opinion that the airport is one of the most dangerous in the world, despite the fact that no major tragedies have happened at the facility. The airport’s sole runway is marked with an X at each end, to indicate to commercial pilots that the airport is closed for commercial aviation.
The danger arises from the airport’s physical position. It is flanked on one side by high hills, and on the other side and at both ends of the runway by cliffs dropping into the sea. This creates the possibility that an airplane might overshoot the runway during landing or takeoff and end up in the sea or on the cliffs.









1. Princess Juliana International Airport (Saint Martin)

Princess Juliana International Airport serves Saint Maarten, the Dutch part of the island of Saint Martin. It is the second busiest airport in the Eastern Caribbean. The airport is famous for its short landing strip — only 2,180 metres/7,152 ft, which is barely enough for heavy jets. Because of this, the planes approach the island flying extremely low, right over Maho Beach. Countless photos of large jets flying at 10–20 m/30-60 ft over relaxing tourists at the beach have been dismissed as fakes many times, but are nevertheless real. For this reason as well it has become a favourite for planespotters. Despite the difficulties in approach, there has been no records of major aviation incidents at the airport.