Rajesh Uppal

Rajesh Uppal

Unleashing Geothermal Power: The Clean Energy Revolution Accelerated by Breakthrough Technologies

Introduction: The Sleeping Giant Awakens Geothermal energy, long considered a niche renewable, is experiencing a dramatic reawakening. Once constrained by geography and cost, this reliable energy source is now being revolutionized by next-generation technologies and record-breaking investments. In a resounding…

The Silent Revolution: Ultrasonic Communications Reshaping Defense and Security Landscapes

Beyond the limits of human hearing, ultrasonic waves—frequencies above 20 kHz—are rapidly emerging as a powerful enabler of covert communication, secure authentication, and futuristic warfare capabilities. As vulnerabilities in traditional radio-frequency (RF) systems become increasingly apparent, ultrasonic technologies present a…

Dragon’s Arsenal: China’s Expanding Defence Exports and the Global Balance of Power

  Over the past two decades, China has transitioned from a major arms importer to a growing global arms exporter, leveraging state-led innovation, military-industrial integration, and a flexible approach to foreign military sales. With increasing investments in indigenous defense capabilities,…

Beyond the Horizon: Advanced Propulsion and Deorbiting Technologies for Responsible CubeSat End-of-Life

CubeSats have emerged as game-changers in space exploration, offering an accessible, low-cost entry point for universities, startups, and governments alike. Their standardized, modular design allows rapid development and deployment for a wide range of missions, from remote sensing and atmospheric…

The Cutting Edge of Light Control: Nonlinear Optical Materials and Devices Revolutionizing Technology

Beyond Linearity: Fundamentals Reimagined Nonlinear optical (NLO) materials and devices manipulate light in ways that defy traditional physics—enabling quantum communication, photonic computing, and ultrafast sensing. Instead of behaving proportionally to incoming electromagnetic fields, these materials exhibit nonlinear responses when illuminated…