 |
Pencil details
Brand: Eagle Pencil Co.
Type: Copying
Made in: USA (top), England (middle), Canada(bottom)
|
|
Interesting note:
A manifold is an abstract mathematical space in which every point has a neighborhood which resembles Euclidean space, but in which the global structure may be more complicated. In discussing manifolds, the idea of dimension is important. For example, lines are one-dimensional, and planes two-dimensional. |
|
