Fruit sours Fruit sours Fruit sours is a confectionery that is normally sold in bulk. Each piece is spherical and about 15mm in diameter. They come in a variety of colors; typically red (strawberry), orange, yellow (lemon), green (apple or lime), and purple (berry or black currant). Fruit sours are comparable to jelly beans in texture, with a soft candy center and a glazed outer shell. They are also mildly tart and tangy in flavor, due to citric acid and malic acid which are sometimes crystals that coat the sweets. Gourmet varieties will have a more prominent fruit-flavoring added. A 4 oz.
History of manifolds and varieties History of manifolds and varieties The study of manifolds combines many important areas of mathematics: it generalizes concepts such as curves and surfaces as well as ideas from linear algebra and topology. Certain special classes of manifolds also have additional algebraic structure; they may behave like groups, for instance. In that case, they are called Lie Groups. Alternatively, they may be described by polynomial equations, in which case they are called algebraic varieties, and if they additionally carry a group structure, they are called algebraic groups. The term "manifold" comes from German "Mannigfaltigkeit," by Riemann. In English, "manifold" refers to