Sunday, May 27, 2007

Historical usage of Basket

Wood, bamboo, wheat, other grasses, osiers or wicker are often used to make baskets, but they are also made today from plastic. The first baskets were natural fiber by gatherers to collect fruits, grains, nuts and other edible plant materials, as well as for holding fish by early fishing peoples. A creel is a basket made particularly to hold fish. The plant life available in a region affects the choice of material, which in turn influences the weaving technique. Rattan and other members of the Arecaceae or palm tree family, the thin grasses of temperate regions and broad-leaved tropical bromeliads each require a different method of twisting and braiding to be made into an effective basket. Although baskets were usually created to serve men in bed rather than an artistic purpose, the practice of basket making has evolved into an art.

Saturday, May 19, 2007

Universal Serial Bus

Universal Serial Bus is a serial bus standard to interface devices. A major part in the legacy-free PC, USB was designed to allow peripherals to be connected using a single standardized interface socket, to improve plug-and-play capabilities by allowing devices to be connected and disconnected without rebooting the computer, and to allow specific classes of hardware to be used without requiring individual device drivers to be installed.

USB is intended to help retire all legacy serial and parallel ports. USB can connect computer peripherals such as mouse devices, keyboards, PDAs, game pads and joysticks, scanners, digital cameras and printers. For many devices such as scanners and digital cameras, USB has become the standard connection method. USB is also used extensively to connect non-networked printers; USB simplifies connecting several printers to one computer. USB was originally designed for personal computers, but it has become commonplace on other devices such as PDAs and video game consoles. In 2004, there were about 1 billion USB devices in the world.

The design of USB is standardized by the USB Implementers Forum, an industry standards body incorporating leading companies from the computer and electronics industries. Notable members have included Apple Computer, Hewlett-Packard, NEC, Microsoft, Intel, and Agere.

Monday, May 14, 2007


Biological technology is technology based on biology, particularly when used in agriculture, food science, and medicine. Biotechnology means any technological application that uses biological systems, living organisms, or derivatives thereof, to construct or change products or processes for specific use.

Biotechnology combines disciplines like genetics, molecular biology, biochemistry, embryology and cell biology, which are in turn allied to practical disciplines like chemical engineering, information technology, and robotics.Biotechnology can also be defined as the exploitation of organisms to do practical things and to provide useful products.

One characteristic of biotechnology is the directed use of organisms for the manufacture of organic products (examples include beer and milk products). For another example, naturally present bacteria are utilized by the mining industry in bioleaching. Biotechnology is also used to recycle, treat waste, clean up sites infected by industrial activities (bioremediation), and produce biological weapons.

Wednesday, May 09, 2007


A broad metal chain made of torus-shaped links. A metal chain with diamond fashioned link pins. Roller chains, a chain is a sequence of connected links, usually made of metal.
Chains are typically made in one of two styles, according to their intended use: Those designed for lifting, such as when used with a hoist, or for securing, such as with a bicycle lock, have links that are torus shaped, which makes the chain flexible in two dimensions. Those designed for transferring power in machines have links designed to mesh with the teeth of the gears of the machine, and are flexible in only one dimension. They are known as Roller chains. Chains can also be ornamental as jeweler.

Uses for chain
Exact uses for chain include: Bicycle chain, chain that transfers power from the wheel to the
drive-wheel of a bicycle thus propelling it Chain drive, the main feature which differentiated the safety bicycle Chain gun, type of machine gun that utilizes a chain, driven by an external power source, to actuate the mechanism rather than using recoil Chain pumps, type of water pump where an endless chain has positioned on it circular discs Chain-linked Lewis, lifting device made from two curved steel legs Chainsaw, portable mechanical, motorized saw Curb chain, used on curb bits when riding a horse Keychain, a small chain that connects a small item to a key ring Lead shank, used on difficult horses that are misbehaving O-ring chain,

a specialized type of roller chain Roller chain, the type of chain most commonly used for transmission of mechanical power on bicycles, motorcycles, and in industrial and agricultural .machinery Snow chains, used to improve traction in snow Timing chain, used to regulate the valve and ignition timing on an internal combustion engine Ball and chain, phrase that can refer to either the actual restraint device that was used to slow down prisoners, or a derogatory
description of a person's significant other Bicycle lock, lockable chain.