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The Cosmic Velocity Limit Referring to Einstein’s unique relativity theory, the velocity of light is constant in a vacuum, and that can’t be exceeded by any object. In other words, nothing can travel at a speed higher than that of light. It’s the cosmic velocity limit for data exchange. The speed of light has been …

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The word ‘Spectrum’ typically refers to the electromagnetic spectrum which consists of all the electromagnetic radiation frequencies. Previously, the term was limited to light only, but afterwards, it was revised to incorporate other waves, like the sound waves. The range of wavelengths is from a pico-meter to thousands of mega-meters. It contains the visible spectrum …

Lenticular lens is a strategy that has evolved immeasurably with time, and it’s even being used today. Generally, it’s a collection of magnifying lenses, which are arranged in a way that one can see diverse images magnified when observed from distinct angles. You may possibly have seen some images/pictures that produce a 3D effect when …

In war, it is always important to stay a step ahead of enemy. Scientific advancement is one of the means that helps in achieving it. Science and war are in a way interdependent for the same reason. As history tells us, progress in science has played a crucial role in winning wars; on the other hand the development …

RADAR stands for Radio Detection And Ranging. After the war has turned aerial, it has become essential to scour the air spaces off the enemy planes or other flying objects. Due to the humongous nature of the space that needs to searched any brute force search operation like using planes or other ground or sea means, manually, is …

There are many light related phenomena in the sky, beyond those that we have learnt during our Physics tuition classes, such as Light Pillars, Parhelic circles, Zodiacal light and Auroras, just to mention a few. Let’s look at these events in more detail! Light pillars are an optical wonder where segments of light are seen …

Eye accommodation is the act of physiologically making adjustment to the crystalline lens elements to vary the power of refraction and bring into sharp focus close and far objects. The eye accommodates by changing the lens’ curvature which is performed by the ciliary muscles. They relax the suspensory ligament fibers, narrow the ciliary body diameter, …

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Light has been one of the most interesting and challenging phenomenon to understand for a long time. Earlier theories on light were two fold, on one side were the Newtonian theory of light which said that light was composed of particles or corpuscles and travelled in straight lines and explained the entire phenomenon around the …