Good afternoon everyone, we are here to present our audio presentation featuring "Worlds Teachers Day"
The tools or devices we used are the following:
· Mobile Phones/Cellular Phones
· Earphone/Headset
By the way, what is a mobile phone or Cellphone?
Mobile phones also called "car phones," usually have an antenna mounted on the outside of a car-on the window, fender, roof, or trunk. The antenna of a cellular phone is the phone's primary source of radiofrequency. The metal surface of a car provides a shield between the mobile phone user and the energy associated with the antenna. The physical distance between the mobile phone user and the antenna also serves as protection against RF energy. Because of these two obstacles-the, the metal car surface and the physical separation-users of mobile phones are thought to have little exposure to RF energy. 6
The antenna of a portable phone is integrated into the body of the phone. Because the antenna of a portable phone is close to the phone user's head, portable phones pose greater RF exposure than the other types of cordless phones.
Cellular phones are an important source of RF exposure for those who use them. The amount of RF to which a person is exposed depends on a number of factors. The number of "cells" in a geographical area depends upon the cellular phone traffic in that area. For example, large cities may have many cells per square mile, whereas a less-populated, rural area may have a single cell stretching over several square miles. The farther away a cell phone antenna is from its base station, the higher the power level needed to maintain the connection. Very small cells are therefore associated with much lower exposures.
Each geographical cell has a different number of available channels. Cellular phones operate ideally with the least amount of interference from neighboring channels. To help achieve optimal operation, cellular phones automatically step down to the lowest power level available that still maintains a connection with the base station. On the other hand, any physical obstacle, such as buildings or trees, interfering with the connection between the base station and cell phone forces the base station to increase the power sent to that phone. Therefore the amount of power sent from a base station to a particular cellular phone can vary, even within a single call.
What is the purpose of an earphone/headset?
Headphones (or head-phones in the early days of telephony and radio) are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby to hear. Headphones are also known as earspeakers, earphoners, colloquially, cans. Circumaural and supra-aural headphones use a band over the top of the head to hold the speakers in place. The other type, known as earbuds or earpieces consists of individual units that plug into the user's ear canal. In the context of telecommunication, a headset is a combination of headphones and microphones. Headphones connect to a signal source such as an audio amplifier, radio, CD player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as Bluetooth, DECT or FM radio. The first headphones were developed in the late 19th century for use by telephone operators, to keep their hands free. Initially, the audio quality was mediocre and a step forward was the invention of high fidelity headphones.
Here, is our highlights,
Why do we celebrate "Worlds Teachers Day"?
Teachers' Day is a special day for the appreciation of teachers and may include celebrations to honor them for their special contributions in a particular field area, or the community in general.
The idea of celebrating Teachers' Day took root in many countries during the 19th century; in most cases, they celebrate a local educator or an important milestone in education (for example, Argentina has commemorated Domingo Faustino Sarmiento's death on 11 September since 1915, while India traditionally celebrates Guru Purnima, an Indian and Nepalese festival dedicated to spiritual and academic teachers which are celebrated on the full moon day (Purnima) in the Hindu month of Ashadha (June–July) as it is known in the Hindu calendar of India and Nepal. The birthday of Dr. Sarvepalli Radhakrishnan (5 September) is also celebrated as Teacher's Day in India since 1962. This is the primary reason why countries celebrate this day on different dates, unlike many other International Days.
WORLD TEACHERS DAY 2018
Also known as International Teachers Day, World Teachers Day is held yearly on October 5. Since its set up in 1994, the day celebrates the marking of the ” teaching in Freedom” in 1996. Last year the theme was “Engaging Teachers”. It is observed all over the world over since 1994 after the UNESCO Recommendation concerning Teachers.
What is the purpose of World Teachers Day?
Its point is to center around “acknowledging, evaluating and enhancing the instructors of the world” and to give a chance to consider the issues identified with educators and the teaching process in general.
Late year World Teachers’ Day honored the twentieth commemoration of the 1997 UNESCO points concerning the Status of Higher-Education Teaching Personnel, bringing the occasionally disregarded zone of showing staff at Higher Education foundations into the discussion about teachers. In 2018 the teachers' day will be on a Friday, and it is worth following.
The event has consistently been held on October 5 since 1994 and the goal is the same; to honors educators’ associations around the world. Its point is to prepare to bolster for instructors and to guarantee that the requirements of future ages will keep on being met by educators.
As indicated by UNESCO, World Teachers’ Day speaks to a massive token of the mindfulness, comprehension, and thankfulness showed for the fundamental commitment that educators make in advancement by teaching.
The Education International (EI) organization firmly trusts that the World Teachers’ Day ought to be globally perceived and celebrated far and wide. EI likewise believes that the standards of the 1966/97 suggestions ought to be considered for execution in all countries.
More than 100 nations celebrate World Teachers’ Day globally. The endeavors of Education International and its 401 associations have added to this broadly spread acknowledgment. Consistently, EI dispatches an open mindfulness crusade to feature the commitments of the teaching calling.