Hallo Remus, The radiating grids on old maps usually show the points of the compass or routes between major cities. In the image you show, each major web has 32 points of the compas; north, south,
Hi Carl, There is a plate tectonic lab in geology that looks at the sea floor and the spreading of the ocean plates at the plate boundaries. As the magma wells up from the mantle, the ocean floor
Mare Island was (is?) a US Navy shipyard somewhere in San Francisco Bay. The flag is doubtless from a ship that was fitted there and saw action in the Pacific. It's not a burial flag. Unless you know which
The planets are a collection af gas and dust. Just like a water-drop, the mass assumes the shape of a sphere due to cohesion of the material and gravitational forces toward the much denser center, usually
Hi, Frank. This is a son-in-service banner. The practice of displaying a son-in-service banner became popular during WWI and was continued or even increased during WWII. Families would display them

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