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#streetlights — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #streetlights, aggregated by home.social.

  1. #streetlights #radebeul

    Strassenlampen Von links nach rechts:
    König & Bauer, Kötizer Strasse, Altnaundorf, Dorfteich

  2. GREAT OLD PICS
    Long Acre (also #Longacre) Square was taken from #London's district for buying #horses & #carriages. Basically, the area was a huge #UsedCar market, before there were #cars. The #WinterGarden #Theatre (1911) was an #arena to watch your horse (1881)!
    City changes name 1904 bc #NYTimes is #building a #tower on the site. #Electricity & #StreetLights help make area safer, #NYC's first #subway opens 1904, #newspaper moves in 1905.
    #TimesSquare not #Time #Square
    geographicguide.com/united-sta

  3. GREAT OLD PICS
    Long Acre (also #Longacre) Square was taken from #London's district for buying #horses & #carriages. Basically, the area was a huge #UsedCar market, before there were #cars. The #WinterGarden #Theatre (1911) was an #arena to watch your horse (1881)!
    City changes name 1904 bc #NYTimes is #building a #tower on the site. #Electricity & #StreetLights help make area safer, #NYC's first #subway opens 1904, #newspaper moves in 1905.
    #TimesSquare not #Time #Square
    geographicguide.com/united-sta

  4. GREAT OLD PICS
    Long Acre (also #Longacre) Square was taken from #London's district for buying #horses & #carriages. Basically, the area was a huge #UsedCar market, before there were #cars. The #WinterGarden #Theatre (1911) was an #arena to watch your horse (1881)!
    City changes name 1904 bc #NYTimes is #building a #tower on the site. #Electricity & #StreetLights help make area safer, #NYC's first #subway opens 1904, #newspaper moves in 1905.
    #TimesSquare not #Time #Square
    geographicguide.com/united-sta

  5. GREAT OLD PICS
    Long Acre (also #Longacre) Square was taken from #London's district for buying #horses & #carriages. Basically, the area was a huge #UsedCar market, before there were #cars. The #WinterGarden #Theatre (1911) was an #arena to watch your horse (1881)!
    City changes name 1904 bc #NYTimes is #building a #tower on the site. #Electricity & #StreetLights help make area safer, #NYC's first #subway opens 1904, #newspaper moves in 1905.
    #TimesSquare not #Time #Square
    geographicguide.com/united-sta

  6. GREAT OLD PICS
    Long Acre (also #Longacre) Square was taken from #London's district for buying #horses & #carriages. Basically, the area was a huge #UsedCar market, before there were #cars. The #WinterGarden #Theatre (1911) was an #arena to watch your horse (1881)!
    City changes name 1904 bc #NYTimes is #building a #tower on the site. #Electricity & #StreetLights help make area safer, #NYC's first #subway opens 1904, #newspaper moves in 1905.
    #TimesSquare not #Time #Square
    geographicguide.com/united-sta

  7. Park Street tonight.
    No stars in the sky. Pollution won. Fair enough.

    So the city handled Christmas and New Year the Kolkata way —
    string up enough lights to forget the sky entirely.
    Loud, bright, chaotic. Exactly right.

    🌍 Blog: thevagabondcouple.blogspot.com/
    📺 YouTube: youtube.com/@vagabondcouple
    📘 Facebook: facebook.com/vagacouple

    #ParkStreet #Kolkata #ChristmasInKolkata #NewYearVibes #CityOfJoy #StreetLights #UrbanIndia #TravelIndia #VagabondCouple #travel

  8. Park Street tonight.
    No stars in the sky. Pollution won. Fair enough.

    So the city handled Christmas and New Year the Kolkata way —
    string up enough lights to forget the sky entirely.
    Loud, bright, chaotic. Exactly right.

    🌍 Blog: thevagabondcouple.blogspot.com/
    📺 YouTube: youtube.com/@vagabondcouple
    📘 Facebook: facebook.com/vagacouple

    #ParkStreet #Kolkata #ChristmasInKolkata #NewYearVibes #CityOfJoy #StreetLights #UrbanIndia #TravelIndia #VagabondCouple #travel

  9. Park Street tonight.
    No stars in the sky. Pollution won. Fair enough.

    So the city handled Christmas and New Year the Kolkata way —
    string up enough lights to forget the sky entirely.
    Loud, bright, chaotic. Exactly right.

    🌍 Blog: thevagabondcouple.blogspot.com/
    📺 YouTube: youtube.com/@vagabondcouple
    📘 Facebook: facebook.com/vagacouple

    #ParkStreet #Kolkata #ChristmasInKolkata #NewYearVibes #CityOfJoy #StreetLights #UrbanIndia #TravelIndia #VagabondCouple #travel

  10. #LightPollution May Harm Our #Ocean’s Water-Filtering ‘#Ecosystem Engineers’

    ByAllison Eck
    Friday, May 1, 2015

    "#SeaSquirts are the ocean’s ecosystem engineers, siphoning #plankton from the water and keeping #CoastalEcosystems healthy. They’ve done their job for millennia relatively unscathed, in part because they have no predators. But now, they have one: #ManmadeLight [#ArtificialLight].

    "A new study published in Biology Letters suggests that the artificial light from #cities might prevent the #larvae of some marine species—like sea squirts, #barnacles, and #corals—from finding appropriate habitats to settle in. Without landing on the right substrate, sea squirt larvae have little chance of surviving.

    "Thomas Davies, an ecologist at the University of Exeter in the #UK, wanted to see which species are the most affected. He studied the #MenaiStrait, which separates the mainland of northwest #Wales from the island of #Anglesey. This area is largely unaffected by light pollution, which led Davies and his team of experts to suspect that an experiment conducted there would provide a good measure of the effect light pollution has on populations.

    "By their measurements, the '#SkyGlow,' or ambient manmade light reflected onto the water by the atmosphere, is at a minimum—it barely amounts to the light emanated from the moon at night.

    "To investigate the effect of artificial light on the area, they placed 36 plastic panels into the water and waited to see which organisms would settle on the panels. Some panels were exposed to light from cool, white #LEDs that emitted about the same amount of light produced by #streetlights, while the control panels mimicked just the small amount of ambient light scattered in the sky.

    "The team retrieved the panels after 12 weeks to see how much of the panels’ surface area had been colonized. Sea squirts and sea bristles, both filter feeders, had lower colonization rates on the artificial light panels than the controls. On the flip side, #foulers like barnacles ended up clinging to the artificial light panels, which could explain why they so often attached to boat hulls and jetties. Barnacles in particular cost the global economy millions of dollars in reduced fuel economy and cleanup costs.

    "Here’s Katie Wheeling, writing for Science: 'Overall, the study found that the lights either encouraged or discouraged settlement in 39% of the taxa, or groups of species, living on the panels by the end of the experiment period. Artificial light may be negatively impacting marine ecosystems by driving away certain invertebrate species, like filter feeders, and attracting others, the team reports.

    "'More work needs to be done to understand how brightness, cycle of exposure, and wavelength of light affects individual species. In the future, experts may be able to configure exact spectra that work well with ocean species but also fill our own needs. For now, the team’s complex results indicate that we may need to pay more attention to how manmade light is damaging marine environments.'"

    Source:
    pbs.org/wgbh/nova/article/ligh

    #LEDs #DarkSkies #LightPollution #Extinction

  11. Why #LightPollution is a solvable #environmental crisis

    Excessive #OutdoorLighting is deadly to #animals and takes a toll on #HumanHealth and wellbeing, too. But when it comes to large-scale environmental problems, this one may be a relatively easy fix.

    By Alissa Greenberg
    Friday, April 1, 2022

    "In recent decades, lightbulbs made with #LEDs arrived, a revolution in energy efficiency with seemingly little downside. After all, an #LED bulb converts some 90% of the electricity it uses into light, whereas a conventional incandescent bulb only converts about 10%. And LED bulbs are touted as lasting up to 25 times longer.

    "But the physics of LEDs make them fundamentally different from incandescents. While those traditional bulbs put out warm white light made of all colors mixed together, LEDs filter blue-rich light through a specialized phosphor material, producing light that appears white to the human eye but is still more blue-intense than incandescents’ light.

    "But #BlueLight is also the most disruptive to our #nighttime environment because it mimics daylight, disrupting the hormone production and sleep cycles of both animals and humans.

    "#Melatonin, one of those hormones, helps the immune system destroy renegade cells dividing out of control. That can lead to other health issues, including heightened rates of #cancer. And, 'we’re not the only ones who produce melatonin,' says Mario Motta, a cardiologist and trustee of the American Medical Association. Even amoebae produce melatonin'—meaning even amoebae might be vulnerable to light at night.

    "The impacts of light pollution are evident everywhere from human health to astronomy research, but they come into particular focus in the recent phenomenon of global species #dieoffs. Between 100 million and a billion birds die every year due to light pollution, according to Massachusetts IDA chapter president James Lowenthal. New York City recently dealt with a huge die-off, 'with flocks of #MigratoryBirds slamming into buildings,' says Sarah Bois, an ecologist at the island’s Linda Loring Nature Foundation and a member of Nantucket Lights. 'They’re attracted to light.' A 2015 study at New York’s 9/11 'Tribute in Light'' installation showed an increase from 500 birds within half a kilometer of the light beams before they were turned on to 15,700 just minutes after.

    "The issue is a double whammy for birds because they rely on #insects for food—and those populations are plummeting, with light pollution contributing significantly to the so-called "#InsectApocalypse.” By some estimates, one third of insects attracted to light sources at night die before morning, either due to exhaustion or because they get eaten. And according to a study in Germany, the number of insects in that country alone that die after being attracted to lights can number 100 billion or more in a single summer.

    "Some starve to death searching for food that should appear bluer at twilight but is lit up amber under streetlights, says insect conservationist Avalon Owens, a doctoral candidate at Tufts University. Some are thrown off by light just the way we are, because of their #CircadianRhythms. #Pollinators whose schedules are altered by artificial light miss the #flowers they’re evolutionarily paired with, if the flowers naturally close and open with the warmth of the sun. And insects that rely on circadian rhythms for their yearly development don’t hibernate in time for winter and freeze to death.

    "On #Nantucket, these phenomena are of particular concern because the island is home to a remarkably healthy population of northern long-eared #bats, which are endangered. Like many birds, the bats rely on insects for food and are easily dazzled by light, putting them in increasing jeopardy. Jack Dubinsky, director of the Maria Mitchell Aquarium on Nantucket, says he’s concerned that adding increasingly lit-up nights to the challenges of #ClimateChange, water quality, and #ecosystem collapse could put huge pressure on some already struggling species. 'The more curveballs we throw, the less likely they’ll be able to find their way,' he says.

    Read more:
    pbs.org/wgbh/nova/article/ligh

    #DarkSkies #Extinction #StreetLights