Eportfolio Activity

  ✨ The Magic of Light: Exploring Optical Fibres in Our Connected World "Invisible but indispensable, optical fibres are the light-speed highways of modern life." 🔍 What Are Optical Fibres? Optical fibres are tiny, flexible strands of glass or plastic that transmit data using light pulses instead of electricity. Imagine sending messages through beams of light — that's the essence of how they work. Each fibre is made up of three main layers: Core : The inner part where the light travels. It's made of highly transparent glass. Cladding : Surrounds the core and reflects the light back into it, keeping the signal inside. Protective Coating : This outer layer protects the fibre from moisture, damage, and physical stress. 🧪 [Infographic: Anatomy of an Optical Fibre] 💡 How Do Optical Fibres Work? Optical fibres use the principle of total internal reflection . When light enters the core at a certain angle, it gets reflected off the cladding and con...

High blood pressure, medically known as hypertension , is one of the most common and dangerous health conditions affecting people worldwide. Often going unnoticed until significant damage is done, hypertension is known as the “silent killer” for good reason. This blog takes a closer look at what hypertension is, its symptoms, associated risks, the role of genetics and lifestyle, and most importantly, how you can prevent or manage it. What is Hypertension? Hypertension occurs when the force of blood against the walls of your arteries is consistently too high . It is usually diagnosed when blood pressure readings are 130/80 mmHg or higher on multiple occasions. Blood pressure is expressed as two numbers: Systolic pressure (top number): Pressure during a heartbeat Diastolic pressure (bottom number): Pressure between heartbeats Symptoms of Hypertension One of the most dangerous aspects of hypertension is that it often has no noticeable symptoms . Many people don’t r...