What is our "cosmic address"

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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What is our "cosmic address"?

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When give your address to somebody, you want to make sure you can be found. Earth is a part of the solar system. Within the galaxy a good idea would be to give location as set of distances to nearest pulsars.

Our cosmic address:

Planet Earth, Solar system, 2300 light year from the centre of our galaxy. Your home or your school has an address: a street, a city or town, and a country. When someone wants to send you a letter, they give your address, so that your mail carrier knows the letter should go to you.

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