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Welcome to Urban Tree Bark Textures!
Welcome to a space for anyone curious about the textures of urban tree bark. You can share observations of street trunks, shaded sections, or rain-exposed faces, and compare notes on fissures, peeling layers, and smooth or rough surfaces. Browse the forums and add your own field records.
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NASA’s Chandra Observatory Reveals a Giant Cosmic “Treble Clef”
Astronomers have traced a giant radio structure resembling a musical treble clef back to two events separated by millions of years. An outburst from a...
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