When you look at distant lights you are actually peering at them through a vast sea of air. We expect that denser media, such as water, will deflect light and thus make lights twinkle, blink or shimmer. Air does the same but since it is less dense we generally only notice this phenomenon at distance. read more
When you look at distant lights you are actually peering at them through a vast sea of air. We expect that denser media, such as water, will deflect light and thus make lights twinkle, blink or shimmer. read more
If you have reached this page without beginning at the Start of the diagnostic tree, you may do better to start there. read more