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Four-dimensional space ( 4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible abstraction of the observation that one needs only three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world.
4-Digits. 4-Digits (abbreviation: 4-D) is a lottery in Germany, Singapore, and Malaysia. Individuals play by choosing any number from 0000 to 9999. Then, twenty-three winning numbers are drawn each time. If one of the numbers matches the one that the player has bought, a prize is won.
Stereolithography is a 3D-printing technique that uses photopolymerization to bind substrate that has been laid layer upon layer, creating a polymeric network. As opposed to fused-deposition modeling, where the extruded material hardens immediately to form layers, 4D printing is fundamentally based in stereolithography, where in most cases ultraviolet light is used to cure the layered ...
The digit ratio is the ratio taken of the lengths of different digits or fingers on a hand . The most commonly studied digit ratio is that of the 2nd ( index finger) and 4th ( ring finger ), also referred to as the 2D:4D ratio, measured on the palm side. It is proposed that the 2D:4D ratio indicates the degree to which an individual has been ...
In mathematics, the group of rotations about a fixed point in four-dimensional Euclidean space is denoted SO (4). The name comes from the fact that it is the special orthogonal group of order 4. In this article rotation means rotational displacement. For the sake of uniqueness, rotation angles are assumed to be in the segment [0, π] except ...
Toto (est. in 1968 and stylised as TOTO) is a legalised form of lottery sold in Singapore, known by different names elsewhere. It is held by Singapore Pools, the only legal lottery operator in Singapore. [ 2] As of April 2015, it was the second most popular type of gambling activity after 4-Digits. [ 3]
Sports Toto Malaysia Sdn Bhd is a Malaysian company, which operates in the gambling sector. Founded and incorporated by the Malaysian Government in 1969, it was focused on the commercialisation of 4-Digits –based games. On 1 August 1985, the government in a non- tender privatisation, [ 1] sold the company to businessman Vincent Tan who merged ...
4D film is a presentation system combining motion pictures with synchronized physical effects that occur in the theater. Effects simulated in 4D films include motion, vibration, scent, rain, mist, bubbles, fog, smoke, wind, temperature changes, and strobe lights. [ 1][ 2] Seats in 4D venues vibrate and move.