The reflection of light from streetlamps is known as diffuse reflection, which means that the light waves bounce off of the surface in all directions. When the surface is dry, the reflection is weak and we don’t see anything special, but when the surface is wet, the effect is amplified. The water on the surface acts as a mirror, which reflects the light in a more organized and visible pattern, creating the illusion of starry streets.
The effect is particularly impressive when the streets are made of dark materials, such as asphalt or concrete, in comparison to lighter surfaces like white tiles. These dark surfaces absorb more light, making the reflection more intense and visible. The effect is further intensified when the street lamps are close to the ground and the interval between them is short, creating a denser concentration of light that further amplifies the reflection.
The brilliance of starry streets is not only a visual delight but can also have practical applications. In areas where there is low visibility, such as in rural areas where there are no street lights or during heavy rain or fog, the reflection can improve the visibility of drivers, making it easier for them to navigate the roads. Moreover, the effect can also be used as a tool for artistic expression, as it has been used in various films and music videos that capture the captivating beauty of the starry streets.
One of the notable examples of this effect is in the music video for “Stay” by Rihanna and Mikky Ekko. The video takes place in a dark and damp street that appears to be lined with stars. The reflection of the streetlights on the wet ground creates a stunning visual that adds an extra layer of beauty to the song. The effect has also been used in movies such as “Blade Runner 2049” where the city’s streets are covered with starry reflections making each frame of the movie a visual treat.
While we may appreciate starry streets for its visual and practical effects, it is important to note the environmental impact of having wet surfaces that reflect light. The water on the street is usually rainwater or melted snow, but in urban areas, it can also be contaminated water from various sources. The reflection of the light can also be a form of light pollution, which can affect the environment and living organisms in the area, altering the natural cycle of various species.
In conclusion, starry streets are a remarkable sight that can take our breath away. It is a fascinating scientific phenomenon that adds an element of intrigue to our daily lives. Its practical uses also make it a valuable tool for improving visibility on the roads, especially during adverse weather conditions. However, as we enjoy the beauty of starry streets, it is important to be mindful of the environmental impact it can have and take necessary measures to mitigate these effects.