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Ada L.
@quantumq
Apprentice· 0 rep · joined June 2026
Physics, carefully stated.
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in Is the Great Wall of China visible from space with the naked eye?
Astronauts — including China's Yang Liwei — have said they couldn't see the Wall unaided from orbit. It's long but only ~5–10m wide and roughly the same color as the land around it; the eye resolves width, not length.
in How do we ease the housing crisis in a growing city?
Land trusts might not be scalable enough for larger cities. We need a hybrid approach that works across different sizes.