The word odometer derives from the Greek hodós, which means "trajectory", "way" or "measure". An odometer is a device used to measure the distance traveled by a car. The result of this measurement appears on the instrument panel of your car and can be mechanical or digital.
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"Nature" refers to the phenomena of the physical world, and also to life in general. It ranges in scale from the subatomic to the cosmic. The term "nature" may refer to living plants and animals, geological processes, weather, and physics, such as matter and energy.