Dominoes have long been a popular pastime for children, but they can also be used to create intricate patterns or structures. They can be arranged in lines that zigzag across the table or stacked in pyramids and towers to create impressive displays. There are even domino sets that are designed to form images when they fall.
A domino is a rectangular block with one face bearing from one to six dots or pips, which identify it as a unique piece in a set of dominoes; 28 such pieces comprise a complete set. The other face of each domino is blank or has a contrasting color. Traditionally, dominoes were made from bone, silver lip ocean pearl oyster shell (mother of pearl or MOP), ivory, and dark hardwoods such as ebony, with black or white pips inlaid into the surface. Other materials such as marble, granite, soapstone, frosted glass, and ceramic clay have been used for sets as well.
When a domino is stood upright, it stores energy based on its position, or potential energy. Then, when it is knocked over, much of that energy is converted to kinetic energy — the energy of motion — causing another domino to topple and then another, in a chain reaction. These complex chains of dominoes are often the centerpiece of shows featuring skilled builders who compete to set up the most elaborate and imaginative reactions or effects before an audience of fans.
Like the stones in a stack of cards, or the tiles on a board game, each domino has a unique identity that distinguishes it from other pieces. The pieces may be referred to as bones, cards, or men, and are typically twice as long as they are wide, which makes them easy to re-stack after use. Each domino has a line in the middle to divide it visually into two squares, each with an arrangement of pips (also called spots or dots) indicating its value in the dominanto game, from six pips up to none or blank.
The most common way to play domino is by matching the ends of adjacent pieces and laying them down in rows or angular patterns. Each time a domino is placed, it must be touching a tile that has the same number of matching pips. If a domino is played to a double, the piece must be placed perpendicular to it with both sides of the tile touching fully.
When a good domino is taken, it has the power to trigger positive ripples that will extend in other areas of our lives. It is important to recognize these good dominos, because they are usually hard-won and require a significant amount of time and effort to accomplish. Examples of good dominoes include completing financial planning, building a strong network of professional contacts, or starting an exercise routine. By breaking these larger goals into a series of good dominos, the process can become more manageable and ultimately easier to complete.