The eclipse was cool to watch the shadow slowly creep across the moon. The last light was a little crescent shape of light. The shadow of the earth was convex. This morning the situation is reversed. The light portion is convex. What round object casts a concave shadow?
The eclipse was cool to watch the shadow slowly creep across the moon. The last light was a little crescent shape of light. The shadow of the earth was convex. This morning the situation is reversed. The light portion is convex. What round object casts a concave shadow?