If the earth is spinning and moving through space, why don't we feel it?

If you ride in a car at 65 miles per hour, and close your eyes, you will have no sensation of moving at all. Humans only have sensory organs to feel CHANGES in speed ( called acceleration) not the actual constant motion itself.

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All answers are provided by Dr. Sten Odenwald (Raytheon STX) for the
IMAGE/POETRY Education and Public Outreach program.