- Maplewood’s Historic Landscape (maplewoodmn.gov)
14,000 years ago Maplewood was covered by a mile-high glacier. As the climate warmed, the glacier retreated leaving the landforms we see today. Ancient pollen grains in lake sediment help scientists piece together a timeline of the plant communities that followed the glaciers.
- Cube (Wikipedia)
In geometry, a cube or regular hexahedron is a three-dimensional solid object bounded by six congruent square faces, a type of polyhedron. It has twelve congruent edges and eight vertices. It is a type of parallelepiped, with pairs of parallel opposite faces, and more specifically a rhombohedron, with congruent edges, and a rectangular cuboid, with right angles between pairs of intersecting faces and pairs of intersecting edges. It is an example of many classes of polyhedra: Platonic solid, regular polyhedron, parallelohedron, zonohedron, and plesiohedron. The dual polyhedron of a cube is the regular octahedron.
