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The Universe

The Universe

The Universe. The Expanding Universe. Edwin Hubble, 1920’s and 1930’s: Galaxies receding from us The farther away they are, the faster they recede Velocity increase seems to be linear Implies that at some point in the past, everything was in a small space

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705 views • 59 slides
EPPT M2 INTRODUCTION TO RELATIVITY

EPPT M2 INTRODUCTION TO RELATIVITY

EPPT M2 INTRODUCTION TO RELATIVITY. K Young , Physics Department, CUHK  The Chinese University of Hong Kong. CHAPTER 4 APPLICATIONS OF THE LORENTZ TRANSFORMATION. Objectives. Length contraction Concept of simultaneity Time dilation Twin paradox Transformation of velocity

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680 views • 57 slides
Doppler Shift Contents: What it is Moving Source Moving observer Whiteboards

Doppler Shift Contents: What it is Moving Source Moving observer Whiteboards

Doppler Shift Contents: What it is Moving Source Moving observer Whiteboards. Doppler Shift. Demo/examples: race cars, bells at RR crossing Frequency: (Key to understanding this) Higher approaching Lower receding Moving source/moving observer. TOC. Doppler Shift - moving source.

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303 views • 18 slides
Wave Phenomena

Wave Phenomena

Wave Phenomena. Topic 11.2 Doppler Effect. The Doppler Effect. This effect is the change in the frequency of a wave received by an observer, compared to the frequency with which it was emitted. The effect takes place whenever there is motion between the emitter and receiver.

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215 views • 14 slides
Relativity

Relativity

Relativity. Principle of relativity not a new idea! Basic concepts of special relativity …an idea whose time had come… Basic concepts of general relativity a genuinely new idea Implications for cosmology. Relativity. “If the Earth moves, why don’t we get left behind?”

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152 views • 13 slides

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