...ENGLISH HHW The Caste System in Brief: The origins of the caste system in India and Nepal are shrouded, but it seems to have originated more than two thousand years ago. Under this system, which is associated with Hinduism, people were categorized by their occupations. Although originally caste depended upon a person's work, it soon became hereditary. Each person was born into a unalterable social status. The four primary castes are: Brahmin, the priests;Kshatriya, warriors and nobility; Vaisya, farmers, traders and artisans; and Shudra, tenant farmers and servants. Some people were born outside of (and below) the caste system. They were called "untouchables." The Caste System in Brief: Practices associated with caste varied through time and across India, but they had some common features. The three key areas of life dominated by caste were marriage, meals and religious worship. Marriage across caste lines was strictly forbidden; most people even married within their own sub-caste or jati. At meal times, anyone could accept food from the hands of a Brahmin, but a Brahmin would be polluted if he or she took certain types of food from a lower caste person. At the other extreme, if an untouchable dared to draw water from a public well, he or she polluted the water and nobody else could use it. In terms of religion, as the priestly class, Brahmins were supposed to conduct religious rituals and services. This included preparation for festivals and holidays, as well as marriages...
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...Electromagnetic waves At this point in the course we'll move into optics. This might seem like a separate topic from electricity and magnetism, but optics is really a sub-topic of electricity and magnetism. This is because optics deals with the behavior of light, and light is one example of an electromagnetic wave. Light and other electromagnetic waves Light is not the only example of an electromagnetic wave. Other electromagnetic waves include the microwaves you use to heat up leftovers for dinner, and the radio waves that are broadcast from radio stations. An electromagnetic wave can be created by accelerating charges; moving charges back and forth will produce oscillating electric and magnetic fields, and these travel at the speed of light. It would really be more accurate to call the speed "the speed of an electromagnetic wave", because light is just one example of an electromagnetic wave. speed of light in vacuum: c = 3.00 x 108 m/s As we'll go into later in the course when we get to relativity, c is the ultimate speed limit in the universe. Nothing can travel faster than light in a vacuum. There is a wonderful connection between c, the speed of light in a vacuum, and the constants that appeared in the electricity and magnetism equations, the permittivity of free space and the permeability of free space. James Clerk Maxwell, who showed that all of electricity and magnetism could be boiled down to four basic equations, also worked out that: This clearly shows...
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...TITLE OF DOCOMENTS NAME (DATE MONTH YEAR) COURSE Mitigation of Security breaches Big corporations are more vulnerable to internal threats due to simple human error or malicious deeds rather than viruses and malware which are considered as top security threat. It should be noted that an inside malicious user causes more risks than ever. Besides breaching through wireless connection from outside are always should be concerned. These all can be mitigated. Internal treats:- Cutting the risk of these insider breaches requires appropriate systems and processes in place to avoid or reduce human errors caused by inadvertent data leakage, sharing of passwords, and other seemingly harmless actions. Security should be directly built into the business process, independent of the existing network infrastructure and highly sensitive data (such as administrator account passwords, HR files, or intellectual property) are to be preserved in vaults hence protecting the data from the security threats of hackers and the accidental misuse by employees. A digital vault is set up as a single data access channel with only one way in...
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