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The steep walls of this unnamed crater allow the ejecta material to travel further as a ground hugging flow, than if it had landed on a flat surface. At the distal edges of these ejecta deposits we see angular flow features, likely formed by locally accelerated flow conditions due to steep slopes. Unlike the flat and smooth mare surfaces, the slope-rich bumpy highlands create various flow conditions, which result in distinctive morphologies that help lunar scientists understand resurfacing processes on the Moon. Especially the importance of ground hugging flows.
Like the curves, straight lines, symetry, and triangles. Photo of a piece of the façade at Jerry's Nugget Casino in North Las Vegas, Nevada.
Some tatting methods that produce an angular look to the finished work.
The first two zig-zags show how alternating the working thread creates sharp turns.
The diamond shaped ring is made by adding a secondary thread worked like tatting over tails, and holding the secondary thread out of one or two DS in the corners. When the ring is completed, the secondary thread is pulled tight and creates the sharp corners of the diamond.
The third element is block tatting. It is important to switch threads at every turn so that the previous row is locked into place.