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When we look out into the universe, we see into the past.
Chapter 17, Problem 47E(choose chapter or problem)
When we look out into the universe, we see into the past. John Dobson, founder of the San Francisco Sidewalk Astronomers, says that we cannot even see the backs of our own hands now—in fact, we can’t see anything now. Do you agree? Explain.
Questions & Answers
QUESTION:
When we look out into the universe, we see into the past. John Dobson, founder of the San Francisco Sidewalk Astronomers, says that we cannot even see the backs of our own hands now—in fact, we can’t see anything now. Do you agree? Explain.
ANSWER:Solution 47E Introduction: According to the principle of relativity, an event occurring in a particular frame of reference will travel along the space with relativistic speed. So, if it is travelling with relativistic speed, the variables which explains the whole system may change. We know that, the time dilation, length contraction etc. are the phenomena occurring due to the relativistic concept. Step 1: According to John Dobson, when we look out into the universe, we see into the past. It is correct when we are taking the theory of relativity into account. According to the theory o