SCIENCE AND TECHNOLOGY

Understanding Forces Have you ever wondered what makes things move, stop, or even change shape? The answer lies in forces ! Simply put, a force is a push or a pull . From opening a door to stretching a rubber band, forces are constantly at play in our everyday lives. What is a Force? Forces are fascinating because they have both magnitude (size) and direction , making them what scientists call vector quantities . While you can't see a force directly, you can definitely observe and measure its effects. The standard unit for measuring force is the newton (N) , named after the legendary English physicist Isaac Newton, whose groundbreaking laws laid the foundation for much of what we know about force. Balanced vs. Unbalanced Forces Imagine a tug-of-war. If both teams pull with equal strength, the rope doesn't move – that's a balanced force , where the net force is zero. In this case, an object at rest stays at rest, and an object in motion continues moving at the same speed an...

Inventions have been the driving force behind the world's progress, making human life easier, better, and longer. Inventors combine existing knowledge and principles in new ways to create innovative products or processes. This differs from discoveries, which are findings in nature that were previously unknown, such as a new chemical element. Throughout history, inventions have emerged in various fields, including mechanical, chemical, electronic, and nucleonic. New machines, drugs, communication methods, and atomic power applications are constantly appearing, leading to new jobs, businesses, and industries. This, in turn, generates wealth for nations and paves the way for further inventions. The journey of invention began in prehistory, with early humans developing crucial tools like fire-making devices, the wheel and axle, the pulley, the saw, the screw, the wedge, and the inclined plane long before the invention of writing. These foundational inventions, like the wheel, became th...

Science is an active process of studying physical, biological, and social phenomena, involving individuals called scientists who seek answers to questions and often dedicate their lives to discovery . This broad field is divided into natural sciences (physical, Earth and space, and life sciences) and social sciences (human behavior, economics, sociology, psychology) . Scientists may engage in basic science for knowledge itself, or applied science with a specific goal in mind, often building upon pure science discoveries .      Science profoundly impacts society, constantly changing human understanding of the past, present, and future . Advances once thought impossible, like mapping an organism's genetic code, are now scientific milestones . Scientific technology is integrated into daily life, from electricity enabling appliances to electronics shrinking devices and ushering in the digital age . Computers, once confined to labs, are now ubiquitous, aiding business, educati...