Sunday, November 25, 2007

Artificial intelligence

Artificial intelligence (also known as machine intelligence and often abbreviated as AI) is intelligence exhibited by any contrived (i.e. artificial) system. The term is often applied to common purpose computers and also in the field of scientific investigation into the theory and practical application of AI. "AI" the name is often used in works of science fiction to refer to that which exhibits artificial intelligence as well, as in "the AI" referring to a singular discrete or distributed mechanism. Modern AI research is disturbed with producing useful machines to automate human tasks requiring intelligent behavior. Examples include: scheduling resources such as military units, answering questions about products for customers, thoughtful and transcribing speech, and recognizing faces in CCTV cameras.

As such, it has become an engineering control, focused on providing solutions to practical problems. AI methods were used to plan units in the first Gulf War, and the costs saved by this efficiency have repaid the US government's entire investment in AI research since the 1950s. AI systems are now in routine use in many businesses, hospitals and military units approximately the world, as well as being built into many common home computer software applications and video games. (See Raj Reddy's AAAI paper for a complete review of real-world AI systems in deployment today.) AI methods are often employed in cognitive science research, which openly tries to model subsystems of human cognition.

Sunday, November 18, 2007


A camera is a mechanism used to take pictures, either singly or in sequence, with or without sound, such as with video cameras. The name is derivative from camera obscura, Latin for "dark chamber", an early mechanism for projecting images in which an entire room functioned much as the interior workings of a modern photographic camera, except there was no way at this time to record the image short of manually tracing it. Cameras may work with the visual range or other portions of the electromagnetic spectrum.

Every camera consists of some type of enclosed chamber, with an opening or space at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. This distance of the aperture is often controlled by an diaphragm mechanism, but some cameras have a fixed-size aperture.

Sunday, November 11, 2007

Corbett's Tiger

Indochinese Tiger The Indochinese tiger (Panthera tigris corbetti), also called Corbett's tiger, is originate in Cambodia, China, Laos, Myanmar, Thailand, and Vietnam, preferring to stay alive in forests in mountainous or hilly regions. Estimates of its inhabitants vary between 1,200 to 1,800, with only several hundred left in the wild, but it seems likely that the number is in the lower part of the range; it is considered Endangered. The largest present population is in Malaysia, where illegal poaching is strictly controlled, but all existing populations are at extreme risk from habitat fragmentation and inbreeding. In Vietnam, nearly three-quarters of the tigers killed provide stock for Chinese pharmacies. Also, the tigers are seen by poor natives as a resource through which they can ease poverty. Indochinese tigers are less significant and darker than Bengal tigers. Males weigh up from 150–190 kg (330–420 lb) on average while females are smaller at 110–140 kg (242–308 lb). Their go on a diet consists of wild pigs, cattle and deer; The Indochinese tiger is a carnivore.

Sunday, November 04, 2007

Tiger’s in India

Even though this is the most 'common' tiger, these tigers are under severe force from both habitat destruction and poaching. In 1972, India launched a huge wildlife conservation project, known as Project Tiger, to care for the depleting statistics of tigers in India. The project helped raise the population of these tigers from 1,200 in the 1970s to 3,000 in the 1990s and is considered as one of the most successful wildlife conservation programs. At least one Tiger Reserve has lost its full tiger population to poaching. Males in the wild generally weight 205 to 227 kg (450–500 lb), while the average female will weigh about 141 kg. However, the northern Indian and the Nepalese Bengal tigers are invented to be somewhat bulkier than those found in the south of the Indian Subcontinent, with males averaging around 520 lbs (236 kg).