DHRUV64: India’s Strategic Leap Toward Semiconductor Self-Reliance

Introduction On 15 December 2025, the Government of India unveiled DHRUV64, the country’s first fully indigenous 1.0 GHz, 64-bit dual-core microprocessor, developed by the Centre for Development of Advanced Computing…

Winter Solstice on Sunday, December 21, 2025 – Shortest Day of the Year

The Winter Solstice on Sunday, December 21, 2025, marks one of the most significant astronomical events of the year. It is known as the Shortest Day of the Year, when…

What Are Ballast Resistors?

Understanding Ballast Resistors Function of ballast resistors in vehicles The ballast resistors regulate the current from the ignition coil to ensure an even and constant voltage supply to the ignition…

What Causes Ballast Resistor Failure

How Ballast Resistors Impact Ignition Systems Ballast resistors serve an important function in ignition systems. During engine startup, high voltage is required to permit sufficient current to flow to the…

How to Test and Identify PNP Transistors

What are PNP Transistors? The PNP transistor is a semiconductor construct basically composed of three layers: a P-type material, an N-type material, and a P-type material again. This leads to…

What Are PNP Transistors

What are PNP Transistors? A PNP transistor is a type of bipolar junction transistor (BJT) where the majority charge carriers are holes (positive charge). It is constructed with three layers…

What Are Bypass Capacitors

Understanding Bypass Capacitors Bypass capacitors, or decoupling capacitors, are electronic circuit components which stabilize and suppress noise voltage. They are usually small in size and their capacitance values go down…

How Do Bypass Capacitors Work

How Bypass Capacitors Work Bypass capacitors operate on their ability to store and release electrical charge in an improved fashion. At the time of instantaneous current demand within the circuit,…

World Radiography Day 2025: Celebrating the Science of Seeing the Unseen

Introduction Every year on November 8, the world celebrates World Radiography Day — a tribute to the revolutionary discovery of X-rays by Wilhelm Conrad Röntgen in 1895. This day honours…

Nuclear Weapons Testing: History, Science, Effects, Treaties, and Modern Concerns

Introduction Nuclear weapons testing — the deliberate detonation of nuclear devices to evaluate design, yield, delivery, or effects — changed modern warfare, geopolitics, science, public health, and the environment. From…