Technology is the application of scientific knowledge to solve problems and create value. It has become a necessity in people’s lives and helps them get tasks done more efficiently. It also reduces human effort and energy and increases production.
The earliest technological developments, such as fire and the wheel, enabled humans to control their environment and hunt for food. Later technologies, such as the telephone and Internet, reduced physical barriers to communication and allowed humans to connect with one another around the world. Although technology has many benefits, it can be harmful as well. Weapons of ever-increasing destructive power have developed from clubs to nuclear weapons, and the pollution caused by industrial and household technologies can be detrimental to the health of people and the planet.
One of the biggest disadvantages of technology is that it takes us away from real life interaction with other people. Many kids spend too much time on social media and don’t communicate with their friends in person. This leads to depression and mental illness. It can also be a source of unemployment as many people are dependent on technology for their jobs.
It is important to understand how the different aspects of Technology work together, which is why this book is written. It explains the principles that underpin lots of devices, using step-by-step explanations and simple graphics to demonstrate how they work. It covers everything from simple machines to digital technology, and will help anyone who doesn’t have a background in STEM subjects.