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Ecological light pollution [1] is the effect of artificial light on individual organisms and on the structure of ecosystems as a whole.. The effect that artificial light has upon organisms is highly variable, [2] and ranges from beneficial (e.g. increased ability for predator species to observe prey) to immediately fatal (e.g. moths that are attracted to incandescent lanterns and are killed by ...
Holiday lights of this type do not suffer from color fading because the light is determined by the LED's chip rather than the plastic lens. White LEDs are similar in most respects such as power and durability, but utilize a two-stage process to create the white (polychromatic, or broad spectrum) light.
Insectivorous bats may eat over 120 percent of their body weight per day, while frugivorous bats may eat over twice their weight. [147] They can travel significant distances each night, exceptionally as much as 38.5 km (24 mi) in the spotted bat ( Euderma maculatum ), in search of food. [ 148 ]
Morris’ idea for miniature Christmas lights occurred as he was looking at the tiny bulbs on telephone switchboards. However, many Americans still distrusted the safety of electric lights throughout the early 1900s and candles were still used to illuminate trees. The early Christmas tree lights were simply night-lights strung together to form ...
Decorating the Christmas tree each holiday season is a time-honored tradition for many. But even if you've been hanging lights, garland and ornaments for years, there are always new tips and ...
The Northern Lights installation creates a magical winter wonderland with a sit-in infinity snow globe at Beacon Park in downtown Detroit that is free and will be open to the public during park ...
In Finland (and many other countries around the globe), St. Lucia Day on December 13 is one of the main events of the holiday season. On this date, the eldest girl in each family sometimes dons a ...
Vision is presumed to be the main detection sense; no evidence exists to support the use of echolocation. The birds have been observed to converge on artificial light sources in an effort to forage for insects enticed by the light. [4] The average flight speed of common nighthawks is 23.4 km/h (14.5 mph). [18]