Knowledge through Science

Time travel has always fascinated us. It is perhaps one of the most discussed topics among school students and scientists alike. From our everyday experiences we believe that time travel is next to impossible. But, is this true or is there any chance by which we can move forward to backward in time at least for a few seconds? Is time travel possible? When you ask this question to a child, he might, out of his curiosity say that it is possible. He may visualise in his mind all those moments when the dinosaurs ruled over our planet and how things came into being, the way we see it today. In the language of science, time travel is an impossible event (as of now!) and many thinkers have proposed certain postulates which clearly pertains to the fact that time travelling is impossible. We are about to look into these 'concepts' and for knowing them the most important thing that you must possess is 'visualisation'. Many concepts were put forward by humans and let's discus

Light. It is one of most common physical phenomena we come across in our everyday life. Over the years people began to think more about light and were trying to decode its characteristics when it suddenly struck them, what is light made of? This question would change our perceptions of the natural world forever as it opened the doors to explain new, interesting, phenomena.  Prior to the human advancements in nineteenth century two major theories existed about the nature of light: the wave theory and the particulate theory.  On one side we had giants like Christiaan Huygens, Rene Descartes and James Maxwell who advocated that the light behaves as a wave and on the other side we had the expertise of Sir Isaac Newton who advocated for the particulate nature of light. The stage was now set to determine who was right and why. We will analyse the arguments raised both the sides and finally crown the winner! Particulate Theory of Light '' Nature and nature's laws lay hid in the ni