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In Wason's study, not even 10% of subjects found the correct solution, which for the specific criteria of this problem, would be 8 card and the red card. [6] This result was replicated in 1993. [ 7 ] The poor success rate of this selection experiment may be explained by its lack of relevant significance.
Artisan puzzle-makers and companies using technologies for one-off and small print-run puzzles utilize a wide range of subject matter, including optical illusions, unusual art, and personal photographs. In addition to traditional flat, two-dimensional puzzles, three-dimensional puzzles have entered large-scale production, including spherical ...
Falcon makes a series of jigsaw puzzles which it calls "wasgij" (jigsaw spelled backwards) where the picture on the box is the "audience" of the picture on the puzzle. I'm not sure it warrants its own page, though, hence this redirect. --Slashme 07:26, 9 January 2008 (UTC)
The puzzle consists of thirteen polycubic pieces: twelve pentacubes and one tetracube.The objective is to assemble these pieces into a 4 x 4 x 4 cube. There are 19,186 distinct ways of doing so, up to rotations and reflections.
The Simple Solution to Rubik's Cube by James G. Nourse is a book that was published in 1981. The book explains how to solve the Rubik's Cube . The book became the best-selling book of 1981, selling 6,680,000 copies that year.
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
The model is defined in terms of a list of those complex species which are present in solutions in significant amounts. In the present context the complex species have the general formula [M p O q (OH) r] n±. where p, q and r define the stoichiometry of the species and n± gives the electrical charge of the ion. The experimental data are ...
The propensity for any two substances to form a solid solution is a complicated matter involving the chemical, crystallographic, and quantum properties of the substances in question. Substitutional solid solutions, in accordance with the Hume-Rothery rules, may form if the solute and solvent have: Similar atomic radii (15% or less difference)