Different countries and (in the US) different states have different legislation for such matters.
Fog lights. By directing fog lights slightly less than horizontally, the road can be seen more easily, whereas regular headlamps "bounce" or reflect off of the fog and do not increase visibility.
Reduced visibility, and it's been shown that humans tend to be less aware during hours of darkness.
Adjust your speed so that you are able to stop on the amount of road that is visible. Use rear fog lights if visibility is less than 100m. Front fog lights are sometimes beneficial and high beams will dazzle you and decrease visibility.
A snowstorm significantly reduces visibility by creating a whiteout effect. This occurs when snow is falling heavily, reducing visibility to a few meters or less. It becomes difficult to see objects or landmarks, making it dangerous to navigate and travel during a snowstorm.
Visibility does not depend on speed.
The amount of visibility that the waxing cresent has is less than half. The right side is the side illuminated.
Less visibility Depth perception
People who live in the country can see more stars because there is less light pollution. In rural areas, there are fewer artificial lights from buildings and streetlights, which allows for greater visibility of the night sky. In contrast, cities have more light pollution from various sources, which can make it difficult to see stars clearly.
less than a 1000 feet
As long as there is sunlight on the panels, the system will produce electricity. However, production will be less on cloudy days than on bright sunny days. Think of it in terms of visibility. There is still outdoor visibility on cloudy or rainy days, albeit less visibility. There is still production on cloudy days, albeit less production. Since there is no sunlight at night, there is no production at night.
Vessels under oars or paddles should exhibit the same navigation lights as sailing vessels if practical. However, un-powered vessels less than 23 feet are only required to have on-hand, one lantern or flashlight shining a white light that must be used between sunset and sunrise in all weather and during restricted visibility.
just alot of pressure but it would be pitch black down there that's why there are some fish with lights on them. !!!! watch finding nemo It gets worse, and becomes darker because less sunlight can penetrate the deeper you go.