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The above cartoon shows the present Universe as it appears from the vantage point of our solar system, which is in the upper left corner of the figure. According to the cosmological principle, how will the view change if we turned around 180 degrees and looked in the other direction? How do you know?
Alpha Waves
Brain waves that indicate a state of relaxation or light sleep.
Beta Waves
Smaller and faster brain waves, typically indicating mental activity.
Sleep Spindles
Brief bursts of brain activity that occur during stage 2 of the sleep cycle, thought to be important for learning and memory.
Delta Waves
Slow brain waves that are characteristic of deep sleep and are associated with healing, regeneration, and non-REM sleep.
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