August Ferdinand Möbius (November 17, 1790 – September 26, 1868) was a German mathematician and astronomer, born in Schulpforta, Saxony.
math system
Minkowski space is a spacetime in special relativity that consists of one time dimension and three spatial dimensions. It was first described by the Russian-German mathematician H. Minkowski (1864–1909).
Area is how much space a shape takes up, while perimeter is how long the edges of the shape are. One is for measuring the size of the surface, the other is for the length of the edges, and their units are different too.
Area refers to the size of the space that an object's surface or a closed shape occupies on a two-dimensional plane, used to measure how much a 2D region is covered.
Cryptography is the technical science that studies how to encrypt and decrypt information. Simply put, it's about figuring out how to hide information so others can't understand it, and how to restore the hidden information.
Density refers to the mass of a substance per unit volume, usually represented by the symbol ρ, and the international unit is kilograms per cubic meter (kg/m³).
Aesthetics (Greek: αισθητική; English: Aesthetic) is a sub-discipline of philosophy founded by the German philosopher Alexander Gottlieb Baumgarten in 1750. It was initially defined as the science of sensory knowledge (Ästhetik). The Greek root 'aesthesis' means sensory perception, and its study covers aesthetic activities, philosophy of art, and the world of imagery. Baumgarten's concept of 'sensory science' emphasizes that sensory cognition grasps the completeness of relationships between things in a quasi-rational way. Meanwhile, the French scholar Charles Batteaux in 1746 first proposed a system of 'fine arts' covering poetry, painting, and other forms. Hegel limited aesthetics to the philosophy of fine art, while Kant established the independent status of aesthetic judgment in the Critique of Judgment.
A helix is a twisted curve that looks like a coil or a screw, and it's a shape commonly seen in biology, for example in DNA and various proteins. Helices can be left-handed or right-handed. Looking along the helix's axis from the center, if the spiral goes counterclockwise from near to far, it's left-handed; if it's the other way around, it's right-handed.