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Doubling the cube, also known as the Delian problem, is an ancient [a] [1] : 9 geometric problem. Given the edge of a cube, the problem requires the construction of the edge of a second cube whose volume is double that of the first. As with the related problems of squaring the circle and trisecting the angle, doubling the cube is now known to ...
The Kaaba is a cuboid -shaped structure made of stones. It is approximately 15 m (49 ft 3 in) high with sides measuring 12 m (39 ft 4 in) × 10.5 m (34 ft 5 in) wide [88] (Hawting states 10 m (32 ft 10 in). [89] Inside the Kaaba, the floor is made of marble and limestone.
Centaur Aisle. Centaur Aisle is a fantasy novel by American writer Piers Anthony, the fourth book of the Xanth series. [1] King Trent has left Xanth on a mission of trade to Mundania and has left Dor as temporary king. When Trent fails to return after some time, Dor must find a way to rescue Trent. He is informed that the means to rescue Trent ...
A screen pass is a play in gridiron football consisting of a short pass to a receiver who is protected by a screen of blockers. [1] During a screen pass, a number of things happen concurrently in order to fool the defense into thinking a long pass is being thrown, when in fact the pass is merely a short one, just beyond the defensive linemen.
State Route 315, known locally as the Olentangy Freeway, running almost parallel to Olentangy River Road for most of its length, [3] is a north–south highway in central Ohio, in the Columbus metropolitan area. It may be seen abbreviated as SR 315, OH-315, or simply 315. Its southern terminus is at the south junction of I-70 and I-71 in ...
Meffert's. Country. Netherlands. The Gear Cube is a 3-D combination puzzle designed and created by Dutch puzzle maker Oskar van Deventer based on an idea by Bram Cohen. [1] It was initially produced by Shapeways in 2009 and known as " Caution Cube " due to the likelihood of getting one's fingers stuck between the gears while speedcubing. [2]
Trommel screen. A trommel screen, also known as a rotary screen, is a mechanical screening machine used to separate materials, mainly in the mineral and solid-waste processing industries. [1] It consists of a perforated cylindrical drum that is normally elevated at an angle at the feed end. [2]
The Rubik's Cube is a 3D combination puzzle invented in 1974 [2] [3] by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the Magic Cube, [4] the puzzle was licensed by Rubik to be sold by Pentangle Puzzles in the UK in 1978, [5] and then by Ideal Toy Corp in 1980 [6] via businessman Tibor Laczi and Seven Towns ...