Calcium Keeps Night Vision From Tricking Our Brains

Inside Science, October 2012

As candy-crazed kids run up and down driveways this Halloween, guided only by the flickering light of jack-o’-lanterns, it’s easy to appreciate the low light vision that’s preventing trips over superhero capes and princess dresses. But despite the usefulness of night vision, scientists have only now identified the important chemical process that compensates for visual errors in low light.

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