Tagged: Light

What Is Hydrogen-alpha?

Hydrogen alpha is a specific wavelength of visible light at 656.281 nm. A hydrogen atom emits a photon at this specific wavelength when its electron jumps from an excited quantum state or electron shell or energy level of n=3 to a lower level of n=2. Explore what H-alpha is, and how it is applied in astronomy.

An artistic representation of a holographic image

How Holograms Work?

Holograms are one of the counter-intuitive concepts in physics to explain. In this edition, we shall explore what holograms are, the process behind capturing those spectacular parallax images and understand the underlying simplicity of holography....

Highway inferior mirages on a hot summer road.

Why Do We See Mirages?

For the people who are reading the word ‘mirages’ for the first time, a mirage is that illusion of mirror you see on a hot summer road. We are going to explore the science behind this...