I. Introduction Touch screen technology enables direct interaction with devices through touch. Using either capacitive or resistive methods, these screens detect user input, translating it into commands. Widely used in smartphones, tablets, and kiosks, touch screens offer intuitive navigation, eliminating the need for physical buttons and enhancing user experience across various applications. Understanding how touch screens work is crucial for users and developers alike. It enhances user experience by ensuring effective interaction, informs choices in device selection, and guides troubleshooting. For developers, knowledge of touch technology is vital for creating intuitive applications and improving interface design, ultimately leading to greater user satisfaction. This blog aims to explore why touch screens predominantly respond to fingers, delving into the science behind touch sensitivity. By examining the principles of capacitive and resistive technology, we will uncover the
I. Introduction: An electrical device that transforms alternating current (AC) into direct current (DC) is called a mercury arc rectifier. It works on the basis of the mercury arc valve principle, which depends on how mercury vapor responds to an electric field. In 1902, Peter Cooper Hewitt created the mercury arc rectifier, which was used to transmit high-voltage direct current power as well as to power motors, transmissions, electric cars, and trains. Before the invention of semiconductor rectifiers like diodes and thyristors, this was the first way of high power rectification. Mercury-arc rectifiers were almost completely replaced by semiconductor rectifiers after their creation because of their lower price, improved dependability, easier maintenance, and decreased risk to the environment. Researchers have brought back this old technology. II. The rise of mercury arc Rectifiers: Here's how obsolete technologies like mercury arc