Electrical conductor

Television and the Internet are, in the 21st century, replacing radio. In fact, advances in technology have allowed people to access an increasing amount of information, through different forms. A person wanting to learn about world news can now go on the Internet, read a newspaper, watch television or listen to the radio. The technology behind radio as well as its inventors is the reason why, nowadays, people have an unlimited access to information; it began in 1844, with the invention of the…

alloys, which can have much different physical properties from their constituent metals. nickel, and other metals are also often added to iron to make steels of various types. Brass is an alloy of copper and zinc which is used in plumbing fixtures, electrical parts, and musical instruments. Bronze is an alloy of copper and tin, which is much harder than copper; when bronze was discovered by ancient civilizations, it marked a significant step forward from the use of less durable stone tools.…

Water exists in all three physical states only on planet earth, the only planet where life exists in the whole of universe. Water supports life on earth due its unique physical properties such as density, temperature variation, reflectivity, surface tension, specific heat, boiling and freezing points, as well as its chemical properties including its polar nature, dissolving ability and capacity to act both as an acid or base. The exceptional physical properties are all attributed to water’s…

A. Precaution We appreciate your recent purchase of our product. Please read this manual deliberately before utilizing the appliance and hold it for future reference. Safety Instructions/Warnings Before using this unit, read and see all safety instructions and warnings carefully, basic safety precautions ought to dependably be taken over to diminish the danger of a flame, leaking batteries, injury, and material harm. General Warnings 1. The appliance not expected to use by people with reduced…

CHAPTER 1 INTRODUCTION In recent days, the increase in continuous power demand and very slow generation of power is making researchers to work more on efficient power generation. On the other side, the regular price hike in fuel, increase in global warming and adversely effecting environment pollution. Global warming is a good lesson for all of us, these challenges for engineers are encouraging them to work more on clean, renewable and eco-friendly sources. By using renewable energy…

Readers’ Delight Students’ Reading Material 1. Fuel • Introduction to Fuel A fuel is a substance that has energy stored inside it. So, a substance that produces useful energy when it undergoes a chemical reaction is called as a fuel. Upon burning a fuel, a large amount of energy is released as heat. Fuels are used for various purposes such as cooking food, running vehicles, generating electricity etc. Coal, wood, petrol, diesel etc. are some common fuels. Thus, a fuel can be defined as a…

AN OVERVIEW OF TELEMATICS 1.1 INTRODUCTION Telematics established in 1987 and later acquired by Bahri & Mazroei is a provider of Converged Building Systems, which covers ICT Systems (Information and Communication Technology) like Structured Cabling, Data Networks, Telephoning, etc. and ELV (Extra Low Voltage) Systems like Security, Fire, BMS, Guest Room Management Systems and Car Park etc. Telematics has “ISO 9001:2008; ISO 14001:2004 and OHSAS 18001:2007 certification” and it’s arena…

Morse first noticed it on the transatlantic telegraph cables transmitting messages using dots and dashes and it has not gone way since. He handled it by just slowing down the transmission. Amplitude Time Figure 8 101101 transmitted data Figure 8 shows a data sequence, 1,0,1,1,0, which wish to be sent. This sequence is in form of square pulses. Square pulses are nice as an abstraction…

While ubiquitous Internet access is extremely convenient and enables marvelous new applications for mobile users, it also creates a major security vulnerability—by placing a passive receiver in the vicinity of the wireless transmitter, that receiver can obtain a copy of every packet that is transmitted! These packets can contain all kinds of sensitive information, including passwords, social security numbers, trade secrets, and private personal messages. A passive receiver that records a copy of…