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Night vision is enhanced by *1 pointLooking slightly to one side of the object you wish to viewfixing your gaze directly on the object you wish to viewensuring that the cockpit remains brightly illuminateddrinking lots of carrot juice

Question

Night vision is enhanced by *1 pointLooking slightly to one side of the object you wish to viewfixing your gaze directly on the object you wish to viewensuring that the cockpit remains brightly illuminateddrinking lots of carrot juice

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Solution

Night vision is enhanced by looking slightly to one side of the object you wish to view.

Here's why:

  1. The center of the eye is filled with cones, which are color receptors that work best in bright light.

  2. The periphery of the eye, however, is filled with rods, which are more sensitive to light and dark changes, shape and movement and contain the pigment rhodopsin, which improves low-light vision.

  3. Therefore, when you look slightly to the side of the object, you are using more rods which improves your night vision.

  4. This technique is called "off-center viewing" or "averted vision."

  5. So, while it might seem counterintuitive, looking directly at an object in low light can actually make it seem more obscured.

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