Dominos are small rectangular blocks of wood or plastic, each with a single flat side marked by dots that resemble those on dice. They are typically used to play games involving blocking and scoring. Some sets are designed for specific purposes, such as learning number recognition. They can also be used to duplicate card games in areas where religious prohibitions prevent playing with cards. The word domino is also used to refer to a game that involves putting pieces of a chain together. A dazzling lineup of hundreds, or even thousands, of dominoes set up in careful sequence can be a marvel to behold. These mind-blowing creations are often the focus of shows, where professional builders compete to create the most elaborate, imaginative domino reactions or effects for a crowd of admirers. In addition to the entertainment value of these demonstrations, dominoes offer a unique way for students to practice engineering, geometry, math, and science concepts. As the first domino falls, it transfers a certain amount of potential energy to the next domino in line, giving it the push needed to knock it over. Then the energy travels to the next domino, and so on. This is how a line of dominoes can be made to tumble without a single human hand to trigger each one. Hevesh designs her domino displays using a process she calls “Domino Engineering.” She makes test versions of each section of the setup, a process similar to how engineers build prototypes of complex machinery and equipment before making full-scale models. Her tests help her fine-tune the mechanics and ensure that the different elements of the display will work well together. She also videotapes her experiments in slow motion, which gives her the opportunity to spot any errors or imperfections. After each part of the setup is working correctly, she puts it all together, starting with the biggest 3-D sections and then moving on to flat arrangements. Hevesh’s approach to domino engineering helps her make sure that each element of her displays works as intended. For most readers, a domino effect is logical if the scenes in between each scene logically connect and progress as the story indicates they should. It’s also important that the hero’s actions, if they run counter to societal norms, are justified by logic and reason. Otherwise, the readers will likely lose interest in the story or even begin to dislike the hero. In business, a strategy is a plan of action that aims to achieve goals within a certain time frame. The most successful companies use functional strategies, which are specific to each department of a company. These strategies are designed to maximize the efficiency of each department, so that they can co-operate towards corporate objectives. Before David Brandon became CEO of Domino’s, the pizza delivery company was facing some major challenges. Its leadership team wasn’t working well together, and it was struggling financially. As a result, it was in danger of going out of business. To remedy the problem, Brandon refocused the company’s values and put new policies into place. In particular, he made it clear that the company would listen to its customers and take their complaints seriously.