The ends of the ribbons are sometimes formed into bows or twisted curves; when in addition a group of foliage or flowers is suspended, it is called a drop or margent.
2.
He " attributed his interest in geometry both to his work at Wesleyan and Goettingen and to summers spent working on his grandfather's farm . " His particular interests were in the fields of the geometry of curves and surfaces ( curves, differential geometry of surfaces ), algebraic planes and twisted curves ( algebraic geometry, algebraic curves, twisted curves ), homeomorphic sets of lines in a plane ( line coordinates ), the theory of invariants, relativity in mechanics, and correspondences.
3.
He " attributed his interest in geometry both to his work at Wesleyan and Goettingen and to summers spent working on his grandfather's farm . " His particular interests were in the fields of the geometry of curves and surfaces ( curves, differential geometry of surfaces ), algebraic planes and twisted curves ( algebraic geometry, algebraic curves, twisted curves ), homeomorphic sets of lines in a plane ( line coordinates ), the theory of invariants, relativity in mechanics, and correspondences.