Regions with many nearby points keep subdividing. Regions with few or no points stay large. The tree adapts to the data: dense areas get fine-grained cells, sparse areas stay coarse. The split grid is predetermined (always at midpoints), but the tree only refines cells that need it. Sparse regions stay as single large nodes while dense regions subdivide deeply.
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5.78 x 2.78 x 0.28 inches
Lionel Wilson, professor of earth and planetary sciences at Lancaster University, believes it is technically possible to place the reactors on the Moon by 2030 "given the commitment of enough money", and he highlights that there are already designs for small reactors.
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Six planets will parade across the sky this weekend in a rare celestial spectacle, experts have said.
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