Skssknowledge

Introduction  Communication of messagefrom one place to another has alwaysbeen an important feature of our everyday life. Earlier, communication was done by beating of drums, by smoke signals or through pigeons. With the development of science, a necessity was felt for faster communications. Now we are relying on communication through electrical waves, which travel with velocity of light  ( 3× 10^8 ms^-1) .     The basic idea is to convert our primary information into electrical waveform (signals) which propagates through a channel. As the signal propagates, it becomes weaker due to resistance and some noise also creep in.  The speed of communication depends upon the number of signals transmitted in one second i.e. the frequency of signals. If we want to increase the speed of communication, we shall have to compress the waveform in a certain time so that greater number of signals are transmitted in one second. This necessitates a greater band-width of the channe...

What is  the language in communication? 1. Verbal-: Spoken and Written  Language of communication - Language is the medium of effective communication or self expression in all spheres of human life. Communication is not possible without language . So human civilization is a contribution of language . Communication involving language as a means is called verbal or linguistic communication . Verbal communication can be spoken or written. Anything other than spoken or written can be considered as non verbal communication . Verbal communication and non-verbal communication go hand in hand . It is always better to reinforce verbal communication with the help of non-verbal communication .          Language may be thought of as the code, the system of symbols, utilized in the construction of verbal message . Language may be defined as a specialised productive system capable of displacement . From this point of view verbal communication can be analysed with it...

Hello friends                         And I hope that all of you are interested the above topic that is Blackhole. Which is the biggest and massive as well as a death star of our universe.  Blackhole is one of those things, about which we have know a lot. But not all scientists fully understand this.                Formation  The formation of blackhole is occurs when a star uses it with all its energy. Every stars gets energy by nuclear fusion, whenever two hydrogen atom combine each other and form a helium atom . In this process, a lot of energy released which is help to a star to form it's shape. The light and radiation emanating from the star exerts one kind of pressure is called 'radiation pressure '. Like above image 👆 👆 Unless the radiation pressure counter attack to the gravity power till then the star can be stable. If the process is unbalanced that star become unstabl...

-: Electric Current  1. electric current  (i) -: We know that electric potential ofa body is defined as the degree of electrification and it determines the directios of flow of charge. Consider two bodies 'A' and 'B' charged to potentials 'V1'and 'V2' , respectively,  such that V1 > V2 .  -: If they are not connected to each other  (fig.1 ), no charge flows and hence their potentials remain constant.  (Fig.1) -:If they are connected by means of good conducter R, positive charge flows from higher potential to the lower potential or negative charge,  i.e., electrons move from lower potential to higher potential till the potentials become equal. This is an instantaneous process . Current strength,  in a conducter,  is defined as the rate of flow of charge across any cross-section of the conducter.  If a charge 'q' flows across any cross-section in 't' second,  current i is given by -:  i = q/t The above formula holds good if th...

Hello friends     Are you know that what is the net worth of our earth? The net worth of our earth is depending upon earth resources like water, soil, air,:sunlight, gold and silver and diamond etc Resources  Depending on the resources the earth's net worth is defind by The quantity of the resources is multiply into today's market price. And it's calculations is simplify by the history channel and the value is become  $6,873,951,620,979,800 = 7 quadrillion dollars approximately But it is only talk about earth's resources and it is almost contain many atom and molecule like oxygen, carbon, hydrogen etc.  And earth's all atoms and molecules quantity to multiply into today's market price then add into above value . It is also simplify by a user shady potato and the value is -: 15,809,800,000,000,000,000,000 = 15.8 billion trillion dollars    We have know that the whole world's GDP is 75 trillion dollars today . So that the earth's net worth is 15.8 b...

What is communication?            Communication is as old as human life on the earth.  Since time immemorial it has been an integral part of human life and society. The word ' communicate ' is derived from  the Latin word ' communicare ' and the french word ' communis ' . Both the words mean 'to give to another' . The Oxford Advance Learners Dictionary defines communication as "The activity process of expressing ideas and fellings of giving people information" . Some definitions of communication -: Communication is too board a term to define. It is defind , understood and used in different ways by people from different walks of life and different institutions. 1. "Communication is the exchange of meaning between individuals through a common system of symbols" - Encyclopedia Britanica.(author) 2. "Communication is a process of passing information and understanding from one person to another" - Keith Davis. 3. Communication is...