What are those grids of glass in the sidewalk and why are they purple?
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Re: What are those grids of glass in the sidewalk and why are they purple?
#2I thought this was going to be in Seattle. :) It is neat to notice these all over the place.
The underground tour is more than a little crazy to see just how built up the city literally is. My favorite related topic were the spite mounds.
Re: What are those grids of glass in the sidewalk and why are they purple?
#3I had a sail boat where the prior owner had installed 4 of these in the cabin roof. They were little domes and did a good job of lighting the cabin in the day, and marking a path at night.
Re: What are those grids of glass in the sidewalk and why are they purple?
#4Perhaps the inspiration behind this? https://www.bbc.com/news/magazine-23536914
Re: What are those grids of glass in the sidewalk and why are they purple?
#5I always thought it would be interesting to build vertical greenhouses with something like this, in the floors or walls, siphoning natural light between the floors
Re: What are those grids of glass in the sidewalk and why are they purple?
#6In downtown NYC, there still are areas of sidewalk with these.
Re: What are those grids of glass in the sidewalk and why are they purple?
#7These are ubiquitous in London
Re: What are those grids of glass in the sidewalk and why are they purple?
#8I thought this was going to be in Seattle. :) It is neat to notice these all over the place. The underground tour is more than a little crazy to see just how built up the city literally is. My favorite related topic were the spite mounds.
I think the Seattle Tour has a bunch of factoids of which each guide chooses their own subset. First time I took the tour, they mentioned that a bunch of the material for raising the streets came from San Franscisco, which had quite a thirst of lumber (and would occasionally catch fire and burn down, boosting that demand).
Flat bottom boats hold a lot of bulky cargo, but they're a nightmare when empty. So on the return trips they ballasted them... with fill dirt.
Re: What are those grids of glass in the sidewalk and why are they purple?
#9[deleted]
Re: What are those grids of glass in the sidewalk and why are they purple?
#10Oh neat! I didn't know that Sacremento has this kind of underground.
Also, anyone else having flashbacks to Dinotopia sunstones?