"A little fire is quickly trodden out, which rivers cannot quench when suffered." - Shakespeare.

When we examine the foregoing chapter, we find that a domestic fire extinguisher is a basic need. A design so contemplated shall fulfil those needs and, at the same time, allow itself to be easily manufactured on a mass scale and also be available at moderate prices. The percentage of accidents caused by fires in the home, as well as the resulting burns and fatalities, is much higher than the percentage caused by public fires. In the case of a public fire, there is a great loss to the property as a result of a sweeping open fire, whereas in the case of fires in homes, the great loss is more to the lives than to the property. In view of the serious loss of life and disability resulting from home accidents, there exists a pressing demand for the design of equipment to lend a helping hand in putting off the fire. The main reasons for the deaths that occur in our homes each year are the poor design or bad planning of the houses in which we live, the faulty design of the equipment we use or the careless way in which we use it, and the human element, which falls under two headings: mental and physical.

There are so many new designs of school bags on the market these days, and old designs are quickly falling out of favor. This clearly shows that a new design is really necessary for school bags, which will satisfy users' and producers' needs perfectly well.

The school bag issue did not arise until the last 50 years. In the past, the education system was different, and students were not required to carry a large number of books and, in some cases, a lunch box and water bottle too. Hence, in the past, an ordinary bag was used as a school bag, but in big cities like Bombay, the problem of a school bag becomes acute. Students in large cities travel to school from distant locations via local trains and buses. These local trains and buses are always crowded, and in such crowded places, a school bag obstructs free body movement. It has become very troublesome to travel through these vehicles.

Every student has to carry a large number of text books and exercise books. The number of books cannot be reduced because these are the minimum necessary books. The weight can be reduced only with school cooperation, i.e., by providing special lockers to students so that they can keep some of their things there. But all schools cannot do this, and so we have to think of a new system that will make students carry the books easily. We cannot reduce the weight, but we can make it easier to carry. From this point of view, various school bags are introduced to the market.

But most of the bags are not convenient. Some are heavy, and some are light. The light bags are flexible and spoil the books. Some bags are not water-proof and cannot be used in the rainy season. Most of the bags are costly. Cheap bags last for six months, while costlier bags last for 2-3 years, but their size is not suitable. Thus, not even a single bag in the market satisfies customers' needs, and hence, redesigning a school bag is very essential.

Learning makes little sense. For a boy or a girl, learning is quite a separate experience from playing. Learning is an experience that forces students to be restrained, strained, and grave. Textbooks, exercises, and exams are all part of the learning process. It is a bleak world; on the contrary, play is enjoyable, exciting, and stimulating; it is fantastic while also being involved. So the modern method of teaching tries to combine the two, and as a result, learning becomes another game, a play. It makes learning as enjoyable as playing.

Man has always sought assistance with menial tasks. One such is in computation, where a Chinese merchant using an abacus or a merchant using a cash register are all using computational aids. Today, the computer has taken over as the main computational aid, but a computer is much more than that. Today's computer, a far cry from Charles Babbage’s analytical engine, does practically all mathematical computations and takes decisions, whether it be in launching a man to the moon or in assisting the scientist in his laboratory in breaking the genetic code.

The computer as we know it today is making the second industrial revolution take place. The effect of computers on our society is phenomenal. The development of computers is so rapid that the computer will be an inevitable tool for the management executive, the scientist, the teacher, etc.; the list is never complete. We will also see a new generation that takes computers for granted because it learned about the binary system in elementary school and boolean algebra in high school. As such, there is an immense need for this coming generation of educational aids and toys for the kids of the next generation that teach the principles of computer.