Natural disaster

A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include floods, volcanic eruptions, earthquakes, tsunamis, and other geologic processes. A natural disaster can cause loss of life or property damage, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience, or ability to recover.

An adverse event will not rise to the level of a disaster if it occurs in an area without vulnerable population. In a vulnerable area, however, such as San Francisco in 1906, an earthquake can have disastrous consequences and leave lasting damage, requiring years to repair.

Geological disasters

Avalanches and mudslides

During World War I, an estimated 40,000 to 80,000 soldiers died as a result of avalanches during the mountain campaign in the Alps at the Austrian-Italian front. Many of the avalanches were caused by artillery fire.

Earthquakes

An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes manifest themselves by vibration, shaking and sometimes displacement of the ground. Earthquakes are caused mostly by slippage within geological faults, but also by other events such as volcanic activity, landslides, mine blasts, and nuclear tests. The underground point of origin of the earthquake is called the focus. The point directly above the focus on the surface is called the epicenter. Earthquakes by themselves rarely kill people or wildlife. It is usually the secondary events that they trigger, such as building collapse, fires, tsunamis (seismic sea waves) and volcanoes, which are actually the human disaster. Many of these could possibly be avoided by better construction, safety systems, early warning and planning.

Caught on Camera

Caught on Camera is a British documentary series, which looks at real-life footage, filmed by members of the public.

Episodes

References

External links

Roblox

Roblox, stylized as RŌBLOX, is a massively multiplayer online game created and marketed toward children and teenagers aged 8–18. In the game, players are able to create their own virtual world, in which they or other members may enter and socialize within the blocks of varying shapes, sizes, and colors. Games on Roblox can be scripted using a sandboxed edition of Lua 5.1 to affect events that occur in-game and create different scenarios. The company's main source of revenue comes from players buying Robux, the main virtual currency in the game, and from players buying "Builders Club" access, a status which gives virtual benefits to users. Players who have created an account may purchase either Builders Club, Turbo Builders Club, or Outrageous Builders Club, otherwise known by users as BC, TBC, and OBC, respectively.

History and development

Roblox was created by founder and co-founder David Baszucki and Erik Cassel in 2004 and officially launched into its beta version, titled "Dynablocks" in 2004. Soon, "Dynablocks" was renamed to ROBLOX in 2005 and the website was officially launched in 2006. It was named after a portmanteau of the words robots and blocks. Roblox is still in the beta stages today.

Nature

Nature, in the broadest sense, is the natural, physical, or material world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena.

The word nature is derived from the Latin word natura, or "essential qualities, innate disposition", and in ancient times, literally meant "birth".Natura is a Latin translation of the Greek word physis (φύσις), which originally related to the intrinsic characteristics that plants, animals, and other features of the world develop of their own accord. The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Socratic philosophers, and has steadily gained currency ever since. This usage continued during the advent of modern scientific method in the last several centuries.

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded by Asia on the north, on the west by Africa, on the east by Australia, and on the south by the Southern Ocean or, depending on definition, by Antarctica. It is named after India. The Indian Ocean is known as Ratnākara (Sanskrit: रत्नाकर), "the mine of gems", in ancient Sanskrit literature and as Hind Mahāsāgar (Devanāgarī: हिन्द महासागर) in Hindi.

Geography

The borders of the Indian Ocean, as delineated by the International Hydrographic Organization in 1953 included the Southern Ocean but not the marginal seas along the northern rim, but in 2000 the IHO delimited the Southern Ocean separately, which removed waters south of 60°S from the Indian Ocean, but included the northern marginal seas.Meridionally, the Indian Ocean is delimited from the Atlantic Ocean by the 20° east meridian, running south from Cape Agulhas, and from the Pacific Ocean by the meridian of 146°55'E, running south from the southernmost point of Tasmania. The northernmost extent of the Indian Ocean is approximately 30° north in the Persian Gulf.