How do you appreciate the fact that animals. Man and trees are made of cells, which ar very small and we can look at them through microscope?

How do you appreciate the fact that a huge elephant, man, trees are made of cells, which are very small and we can look at them through microscope?

How do you appreciate the role of microscope in the study of cell?

How do you appreciate yeast cells’ which are very useful in our daily life?

Get some floating slime from a puddle, pick a very small amount of slime and put it on a slide. Separate out one fiber and look at it through the microscope. Draw the diagram of what you oberved.

Hey friends I am sujatha from akkalaredypalle of kakapo district the woman in the picture is my mother she carries potable water for us from the stream which is 4 km away from our village it is very difficult to walk all the way by carrying the water pots it takes lot of time also but it is very essential for us as we can't do anything without water so we use water previously what do you think after listening to Sujata's story?

It is very commonly thought that the sciences and humanities are producing two cultures which are opposed to each other. Science is even accused of not being sympathetic to the well-being of society. All this is due to the debatable use made by some scientists of their discoveries. However, science has now become increasingly aware of its responsibility towards society. Consequently, many scientists are of the opinion that science should be defined in humanistic terms. According, I.I. Rabi defines science as follows : "Science is an adventure of the whole human race to learn to live in and perhaps to love the universe in which they are. To be a part of it is to understand it, to understand oneself, to begin to feel that there is a capacity within man far beyond that he felt he had, of an infinite extension of human possibilities - not just on the material side..." Rabi proposes that science be taught “with a certain historical understanding, with a certain philosophical understanding, with a social understanding and a human understanding". At the moment, we are dealing with physics and one might well ask if we can define physics also in humanistic terms. Gerald Halton provides us with a relevant definition of physics. According to him : "Physics is a sequence of related ideas whose pursuit provides one with the cumulative effect of an even higher vantage point and a more encompassing view of the working of nature. Physics is neither an isolated bloodless body of facts and theories with mere vocational usefulness, nor a glorious entertainment restricted to an elite of specalists. Rather students of physics may leave them unprepared for their own time. They can be neither participants nor even intelligent spectators in one of the great adventures”. It will be no exaggeration if we say that the fate of society is linked to physics as whatever is thought or discovered in physics immediately affects the society. Our intellegence lies in applying physics to solve the pressing problems that the society faces and not to annihilate it. According to I.I Rabi

Figure shows a potentiometer with a cell of 2.0 V and internal resistance 0.40 Omega maintain a potential drop across the resistor wire AB. A standard cell which maintains a constant emf of 1.02 V (for very moderate currents upto a few mA) gives a balances point at 63.3 cm length of the wire. To ensure very low currents drawn from the standard cell, a very high resistance of 600 Omega is put is series with it, which is shortedd close to the balance point. The standard cell is then replaced by a cell of unknown emf epsilon and the balance point found similarly, turns out to be at 82.3 cm length of the wire. Would the circuit work well for determining an extermely small emf, say of the order of a few mV (such as the typcial emf a thermo-couple)? if not, how will you modify the circuit?