education

3D Number papercraft

Happy birthday Magic cube papercraft Very easy to do... "Happy Birthday to You", also known as "Happy Birthday", is a song traditionally sung to celebrate a person's birthday. According to the 1998 Guinness World Records, it is the most recognized song in the English language, followed by "For...

Cat 3d illusion papercraft Within visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual percept that arguably appears to differ from reality. Illusions come in a wide variety; their categorization is...

Illusion Horse papercraft Pathological visual illusions arise from pathological changes in the physiological visual perception mechanisms causing the aforementioned types of illusions; they are discussed e.g. under visual hallucinations. Optical illusions, as well as multi-sensory illusions...

Checkered Cube Puzzle papercraft The snake cube is a mechanical puzzle, a chain of 27 or 64 cubelets, connected by an elastic band running through them. The cubelets can rotate freely. The aim of the puzzle is to arrange the chain in such a way that they will form a 3×3×3 or 4×4×4 cube.

Pencil low poly papercraft A pencil (/ˈpɛnsəl/ (listen)) is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage, and keeps it from marking the user's hand. Pencils create marks by physical abrasion, leaving a trail of solid core...

Solar System papercraft There are an unknown number of smaller dwarf planets and innumerable small Solar System bodies orbiting the Sun. Six of the major planets, the six largest possible dwarf planets, and many of the smaller bodies are orbited by natural satellites, commonly called "moons"...

Cryptex papercraft The word cryptex is a neologism coined by the author Dan Brown for his 2003 novel The Da Vinci Code, denoting a portable vault used to hide secret messages. It is a word formed from Greek κρυπτός kryptós, "hidden, secret" and Latin codex; "an apt title for this device" since...

Puzzle animal papercraft A Darwinian puzzle is a trait that appears to reduce the fitness of individuals that possess it. Such traits attract the attention of evolutionary biologists. Several human traits pose challenges to evolutionary thinking, as they are relatively prevalent but are...

illusion 4 papercraft Illusions may occur with any of the human senses, but visual illusions (optical illusions) are the best-known and understood. The emphasis on visual illusions occurs because vision often dominates the other senses. For example, individuals watching a ventriloquist will...

illusion 3 papercraft An illusion is a distortion of the senses, which can reveal how the mind normally organizes and interprets sensory stimulation. Although illusions distort our perception of reality, they are generally shared by most people.

Hellraiser Lemarchand Puzzle Box papercraft A puzzle box (also called a secret box or trick box) is a box that can be opened only by solving a puzzle. Some require only a simple move and others a series of discoveries. Modern puzzle boxes developed from furniture and jewelry boxes with secret...

illusion 2 papercraft The Penrose triangle, also known as the Penrose tribar, the impossible tribar, or the impossible triangle, is a triangular impossible object, an optical illusion consisting of an object which can be depicted in a perspective drawing, but cannot exist as a solid object.

illusion papercraft Some illusions are based on general assumptions the brain makes during perception. These assumptions are made using organizational principles (e.g., Gestalt theory), an individual's capacity for depth perception and motion perception, and perceptual constancy. Other illusions...

[illusion] Anti-Gravity Double Cone papercraft The mechanical paradox is an apparatus for studying physical paradoxes. It consists of a trapezoidal veneered wooden frame with two brass rails, and a pair of brass cones joined at their bases by a wooden disk which rests on the rails. When the...

.[illusion] Two Rings papercraft The Chinese linking rings is a classic of illusion magic in which solid metal rings appear to link and unlink, pass through each other, and form chains and other complex patterns and configurations. The rings may even be handed out to audience members for...

[illusion] U and Bar papercraft A window is formed in the shape of a trapezium. It is often hung and spun around to provide the illusion that the window rotates through less than 180 degrees.

[illusion] Escher's Endless Stairs papercraft The Penrose stairs or Penrose steps, also dubbed the impossible staircase, is an impossible object created by Oscar Reutersvärd in 1937 and later independently discovered and made popular by Lionel Penrose and his son Roger Penrose.[5] A variation on...

Alphabet papercraft Alphabet Inc. is an American multinational technology conglomerate holding company headquartered in Mountain View, California. It was created through a restructuring of Google on October 2, 2015, and became the parent company of Google and several former Google subsidiaries...