Recent content by Sitakalyani

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    Question on electron existence comparing with others

    No physicist has ever seen an electron. Yet, all physicists believe in the existence of electrons. An intelligent but superstitious man advances this analogy to argue that 'ghosts' exist even though no one has seen one. How will you refute his argument?
  2. S

    Question about a statement by Albert Einstein

    It is the question I have seen in the textbook at 11 the standard level.
  3. S

    Question about a statement by Albert Einstein

    Some of the most profound statements on the nature of science have come from Albert Einstein, one of the greatest scientists of all time. What do you think Einsteine meant when he said: "The most incomprehensible thing about the world is that it is comprehensible"?
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    What is the definition of a rigid body according to Wolfram Scienceworld?

    I would like to a complete details on rigid body motion.
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