Noise is an unwanted signal which interferes with the original message signal and corrupts the parameters of the message signal. This alteration in the communication process makes the message to get altered after reaching. It is most likely to be entered at the channel or the receiver.The noise signal can be understood by having a look at the example figure below.Hence, it is understood that noise is some signal which has no pattern and no constant frequency or amplitude. It is quite random and unpredictable. Measures are usually taken to reduce it, though it can’t be completely eliminated.Most common examples ... Read More

Alexandre Dumas was the French author who wrote “The Three Musketeers” historical novel in 1844. This novel got popular because of the adventures, plot and the then political scenario consisting of the issues between Monarchists and Republicans that were discussed. The war between France and England during the time of King Louis XIV was also mentioned in this novel.The Three MusketeersThe three musketeers are actually four, with the protagonist who is the young man named d’Artagnan. He befriends three musketeers named Athos, Porthos and Aramis before joining the elite corps in Paris. This is a well-written novel involving loyalty, betrayal, ... Read More

“As we have physical science to create external well-being, there is a whole inner dimension of science to create inner well-being. I call it Inner Engineering” says Sadhguru Alias Jaggi Vasudev, the founder of Isha Yoga Center.Isha Yoga Center offers the Inner Engineering program which helps us to develop inner growth and peace. This program offers the ways to handle the stress, hectic schedules and challenges in career through an inner transformation that enables you to have a deeper perception towards the way of your life, work and the world around you.The Retreat Program IncludesThe Inner Engineering Retreat program was ... Read More

Among the modulation systems in the communication field, the DSBSC and SSB are the mostly used once till the VSB was invented. If the carrier is suppressed and the power saved is distributed to the two sidebands, such a process is called as Double Side Band Suppressed Carrier system, or simply DSBSC.The process of suppressing one of the sidebands, along with the carrier and transmitting a single sideband is called as Single Side Band Suppressed Carrier system, or simply SSBSC or SSB. In the case of Single Sideband modulation, when a sideband is passed through the filters, the bandpass filter ... Read More

Social reputation is a common desire for every human being. Having lived in a society, any person acquires some reputation depending on the behavior, etiquettes, profession, maintenance, nature etc. from the people around him. When we refer to a group of people who belong to a certain community, they usually form societies and communities and plan activities as we witness in social media daily, to increase their social reputation. Such activities often involve social causes.Scientific Community PeoplePeople who took science as their profession, especially Scientists, researchers, scholars etc. can be referred to as Scientific Community people. Unlike normal people, they ... Read More

Multiplexing is the process of combining multiple signals into one signal, over a shared medium. If analog signals are multiplexed, it is Analog Multiplexing and if digital signals are multiplexed, that process is Digital Multiplexing.The process of multiplexing divides a communication channel into several number of logical channels, allotting each one for a different message signal or a data stream to be transferred. The device that does multiplexing can be simply called as a MUX while the one that reverses the process which is demultiplexing, is called as DEMUX.Types of MultiplexersThere are mainly two types of multiplexers, namely analog and ... Read More

“The Road not taken” is a popular poem written by the American poet, Robert Frost. He was the Poet Laureate of United States. The Road Not Taken is the first poem from a collection of poems called Mountain Interval written by Robert Frost in 1916. This poem indicates the choice made by the poet to follow a certain path.Structure of the PoemIt has Four stanzas of Five lines eachEach Line has eight to ten syllablesIt has an iambic tetrameterIt has ABAAB rhyme patternWhat does it say?The poem indicates the choice of having two roads and describes them. He chooses one ... Read More

The famous pilgrimage spot, Kamakhya temple is situated on Nilachal hill in Guwahati, Assam. This temple was built centuries ago and is one of the most powerful among the 18 Shakti Peethams.Besides the main deity Kamakhya, few more avatars of Kali such as Dhumavati, Matangi, Bagola, Tara, Kamala, Bhairavi, Chinnamasta, Bhuvaneshwari and Tripura Sundari Devi shrines are located in the same compound.Celebrating WomanhoodThere is no sculpture of Parvathi Devi or Shakti in the sanctum, like in other Shakti Peethams or Devi temples. In a corner of a cave inside the temple, an image of a yoni or the female genitalia ... Read More

The FM receiver is the whole unit which takes the modulated signal as input and outputs the original audio signal. Radio amateurs are the initial radio receivers. They had got drawbacks such as poor sensitivity and selectivity.Selectivity is the selection of a particular signal while rejecting the others. Sensitivity is the capacity of detecting RF signal and demodulating it, while at the lowest power level. Both Selectivity and Sensitivity should be high for an FM receiver. To overcome these drawbacks of the ordinary receiver, the superheterodyne receiver was invented. This FM receiver consists of 5 main stages.RF Tuner SectionThe modulated ... Read More

The day before Diwali is known as Kali Chaudas or Naraka Chaturdasi in Hindu tradition. Diwali is celebrated as a festival of happiness which gets after prolonged suffering. As every festival has a story in Hindu Mythology for celebration, Diwali also has many stories attached.Main ReasonDuring Dwaparyug, there was a demon called Narakasura who tortured people for his pleasure. When all the people prayed to Lord Krishna to protect them, Krishna along with Satyabhama his consort, came to kill Naraka.As Satyabhama was actually another form of the goddess Earth and Krishna is none but Lord Vishnu, Naraka should not be ... Read More