It's not an urban sci-fi fantasy: Someone is actually building a leafy underground park below Delancey Street on Manhattan's Lower East Side. The Lowline is a plan to turn an abandoned trolley terminal there into a public green space, using special technology that pipes in sunlight beneath the street's surface. The real deal probably won't be ready until 2020, but this week the creators opened the Lowline Lab, a proof of concept and an experiment for seeing the ideas and tech in action. We got an early look inside.
New York's High Line has been an excellent addition to the city's greenspaces, and has really added an extra dimension to urban living. The Lowline could do the same underground. Is transforming derelict industrial structures a better alternative to urban renewal than straightforward redevelopment?
(Score: 2) by LoRdTAW on Wednesday October 21 2015, @12:23PM
Sodium lamps are the same ones used to illuminate roads with nearly mono spectral yellow light. Metal halide lamps are used for grow lights and other general lighting uses where white light is desired. Though, if you want to be pedantic, Metal halide lamps are Mercury vapor lamps with sodium iodide added.
(Score: 2) by sudo rm -rf on Wednesday October 21 2015, @02:22PM
Now, when you put it that way, I have to admit I never thought about that before. The lamp could of course not have been mono spectral, that would not make any sense at all. But the light was also very yellow and the lamp emitted a lot of heat, so maybe it was a high pressure sodium (HPS) lamp (wiki says, those have a much broader spectrum), but I'm not sure. Back then I didn't smoke weed and did not tend the plants, but I really enjoyed that summer feeling.