Have you ever seen the rainbow effect that glass produces as the sun shines upon them? Or wondered how spectacles help in allowing us to see more clearly? Well, these are examples of a phenomenon known as refraction . In this article, we will explore more about what refraction is and some terminologies that are often used when talking about refraction, specifically in the context of light. What is refraction? Refraction is a phenomenon that all waves have. According to Brit

In a previous article, we learnt the importance of alternating currents (also known as AC) and its role of transmitting electricity over long distances. In this article, we will learn the physics behind generating AC. Then, we will explore how transformers work and we can answer the question that was left hanging in the previous article: why can AC be transformed, and not direct current (DC)? How is AC generated? The process of AC generation relies on the conversion of mec

In today’s society, many things run on electricity, such as the device you are using to read this article. These electrical devices usually have a circuit inside them, where an electric current will flow through to power the device. There are two kinds of electric currents: a direct current and an alternating current. However, why do we need two types of currents? What is the difference between the two of them? In this article, we will explore what direct and alternating curr

If you are into photography, you may have heard of something called a polarising filter. This filter can be placed over your camera lens,...