First impressions can form in less than one second.
Fact #2925
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The sewing machine sped up clothing production.
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The ISS is visible to more people than any structure ever built.
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The phonograph recorded and replayed sound.
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A group of kittens is called a kindle.
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In 1978, thousands of people gathered to watch a man attempt to fly using homemade wings.
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Memories are reconstructed each time you recall them.
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There are hidden layers of reality.
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The use of ultrasound improved prenatal care.
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