Technology has influenced our interpretation of the origin and nature of the universe starting in the early 1900's and continuing on until today. Technology continues to influence as people are willing to create and modify it. Applied science continues to advance and change bringing along with it changes in our theories about the evolution of this and other galaxies. In 1912 an astronomer named Vesto Slipher noted in his observances that all the spiral galaxies that he observed had a red-shifted spectrum. Using an instrument that splits light waves into spectrums, he split the light waves from the galaxies. In this way he was able to measure if a galaxy is moving and if it is moving away or toward us. If a galaxy is moving toward us, the light waves will appear bluer (shorter wavelengths) and if they are moving away from us ....

Number Of Pages: 5

Number Of Words: 1371

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