Behind this spicy title the matter I want to discuss here is the objects of revolution, who are hard to make in rising world. Of course, “revolution” is here in its mathematical sense, not political. A solid of revolution is, as wikipedia said, “a solid figure obtained by rotating a plane figure around some straight line (the axis of revolution)”.
Such object are especially common in our world, a large part of pottery, both old and modern, glass jars, and tiny objects in ours surroundings are objects of revolution, sometime lightly modified by one or several handles. But we can also find them in architecture often for they decorative aspect (balustrade column...) or in mechanic for a more practical consideration: most rotating pieces are more or less modified solid of revolution.
In rising world, solid of revolution, excepted the basic ones like sphere, cylinder and cone are very difficult to make, especially for little objects like jars, plates, bowl… For those, we cannot afford reasonably the workaround commonly used for larger objects with several block. IRL, those objects are made using a potter’s wheel or a wood/metal/stone lathe. It is possible to introduce IG a new workbenches specifically to make solid of revolution ?
And for those who want a torus block (“donuts”) in rising world: its also a solid of revolution