10 inventions that have appeared by chance

Thomas Edison said - "Everything comes to those who are working and can not wait." But not always progress is the goal.Some great ideas come into my head by accident. You will find 10 inventions that were created by accident.

The Magnificent Himalayas and Karakoram Ranges - Northern Pakistan

School meals from around the world

Abandoned Mir Diamond Mine in Russia

Mir Mine also called Mirny Mine is a former open pit diamond mine located in Mirny, Eastern Siberia, Russia. At the time of its closing in 2004, the mine was 525 meters deep and 1,200 meters across making it the second largest excavated hole in the world, after Bingham Canyon Mine. The hole is so big that airspace above the mine is closed for helicopters because of incidents in which they were sucked in by the downward air flow.

Mining began on 1957, in extremely harsh climate conditions. The Siberian winter lasted seven months which froze the ground, making it hard to mine. During the brief summer months, permafrost would become mud turning the entire mining operation into a land of sludge. Buildings had to be raised on piles, so that they would not sink. The main processing plant had to be built on better ground, found 20 km away from the mine. The winter temperatures were so low that car tires and steel would shatter and oil would freeze. During the winter, workers used jet engines to burn through the layer of permafrost or blasted it with dynamite to get access to the underlying kimberlite. The entire mine had to be covered at night to prevent the machinery from freezing.

Sigiriya Rock Fortress, Sri Lanka

Sigiriya or Lion Rock, in Sinhalese, is located in the central Matale District of the Central Province, Sri Lanka in an area dominated by a massive column of rock nearly 200 meters high. At the summit of the rock is the fortified palace built by King Kasyapa (477 – 495 AD), son of Dhatusena, who came to power after he engineered the assassination of his father and seized the throne which rightfully belonged to his brother Mogallana. Fearing the vengeance of the brother, Kasyapa had a fortified palace built on the rock of Sigiriya which was reputed to be impregnable. The rock is surrounded by two wide moats, where crocodiles were introduced. During the eleven years that Kasyapa resided in Sigiriya, he created a residence of exceptional splendor and founded his capital there, impressive vestiges of which are still visible today. Mogallana finally arrived and declared war on the King. After a short but cruel battle in 495, Kasyapa committed suicide by cutting his own throat. Moggallana returned the capital to its original location Anuradapura, and converted Sigiriya into a monastery complex.