COGO stands for "Coordinate Geometry," which is a branch of mathematics used primarily in fields such as surveying, civil engineering, and geographic information systems (GIS). It involves the use of geometric principles to analyze and determine the positions and relationships of points, lines, and shapes within a coordinate system. In particular, COGO is utilized for tasks such as: 1. **Determining Distances and Angles**: It helps in calculating the distances between points and angles between lines.

As of my last update, there is no widely known or specific information about an individual named Artur Oscar Lopes. It is possible that he may be a private person or a figure not widely covered in the media or public records.

The term "Dutch astrophysicists" generally refers to scientists from the Netherlands who specialize in astrophysics, the branch of astronomy that deals with the physical properties and behavior of celestial objects and phenomena. Dutch astrophysicists have made significant contributions to various areas of research, including cosmology, stellar dynamics, planetary science, and the study of galaxies.

"The Ex" typically refers to a former romantic partner or spouse, often used in the context of relationships to describe someone who is no longer in a romantic relationship with a person. It can encompass a range of past relationships, from casual dating to long-term commitments.

A problem such that all NP problems can be reduced in polynomial time to it.

A bobblehead is a type of collectible doll or figurine characterized by a oversized head that is attached to a spring or a flexible joint, allowing the head to bobble or nod when moved or shaken. Typically, bobbleheads are designed to resemble specific characters, celebrities, athletes, or even fictional characters.

The term "China doll" can refer to a couple of different things, depending on the context: 1. **Porcelain Doll**: A "China doll" is often a type of doll made from porcelain or china, characterized by its delicate features, painted facial expressions, and sometimes intricate clothing. These dolls have been popular collectibles, especially in the 19th and early 20th centuries. They are known for their fragile nature and often depict various historical or cultural themes.

A composition doll is a type of doll that is made from a composite material, typically a blend of wood pulp, sawdust, and other organic materials, which are then mixed with a binding agent and molded into shape. This type of doll was popular during the early to mid-20th century, especially from the 1900s to the 1950s. Composition dolls were often less expensive than porcelain dolls and were lighter, making them more appealing to children.

A corn husk doll is a traditional craft that originates from various Indigenous cultures in North America, as well as from other cultures that have used corn husks as a material. These dolls are made from the dried outer leaves of corn cobs and are created by folding, tying, and shaping the husks into the form of a human figure, often resembling a woman or child.

Egli-Figuren, often referred to in English as "Egli figures" or "Egli curves," are a type of geometric figure used primarily in descriptive geometry and engineering drawing. They are named after Swiss architect and artist Hans Egli, who developed a method for representing three-dimensional forms in two-dimensional drawings. Egli figures serve to depict the spatial relationship between different components or systems, making complex structures easier to understand and visualize.

This is the most interesting class of problems for BQP as we haven't proven that they are neither:

Big list: cstheory.stackexchange.com/questions/79/problems-between-p-and-npc/460#460

A haunted doll is a doll that is believed to be possessed by a spirit, ghost, or supernatural entity. The concept often originates from folklore and urban legends, where people claim that certain dolls have exhibited eerie behavior, such as moving on their own, changing expressions, or even communicating with their owners. The fascination with haunted dolls has been popularized through various media, including books, movies, and television shows.

Lottie Dolls are a line of dolls designed for children, known for their focus on promoting positive values and healthy play. Launched in 2012 by a company called Arklu, the dolls are intended to be relatable and realistic representations of children, featuring a variety of body types, face shapes, and styles. Lottie Dolls are approximately seven inches tall and come dressed in outfits that reflect various interests and professions, encouraging imaginative play.

Marilú is a well-known character from the world of dolls, specifically a design from the toy company Gama. She gained popularity particularly in Latin American countries. Marilú is characterized by her distinctive appearance, which typically includes bright, colorful attire and a friendly expression. The doll often serves as a playmate for children, encouraging imaginative play and storytelling. Additionally, Marilú sometimes comes with various accessories and outfits, allowing children to engage in dress-up scenarios.