Adjustable wooden shoe rack Made to order 10 Shelf and 22 slat adjustable shoe rack made from heavy duty plywood and spruce. Height / width / shelf depth / total depth Shoe rack delivered with a plain wood finish and not pre
Dropping A Steel Ball Into Fine Sand - This is what happens when a meteoroid hits dirt on a planet or moon. The recoil of the impact sends a column of material up from the middle. Moon craters show this effect.