/u/MandatoryMahi's posts
How are phones, computers, and other electronic devices able to determine how much power is left in the batteries that are powering them?
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I turn off my PC at night. The next morning I turn it back on and it has the correct time. How is my computer able to tell the time if it has been turned off for some amount of time?
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I am in a dark room and shine my flashlight at a wall. The closer I get to the wall the smaller and more intense the circle of light on the wall becomes. The farther away I am from the wall the circle of light is larger and less concentrated. Why is this?
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