Lecture

Dispersion is the separation of light into a spectrum by refraction. The index of refraction is actually a function of wavelength. For longer wavelengths the…

Lingering daylight after the sun is below the horizon is another effect of refraction. Light travels at a slightly slower speed in Earth’s atmosphere than…

Primary objective of this lecture is to present on Mirages. Mirages are caused by the refracting properties of a non-uniform atmosphere. It is an optical illusion caused by…

Fiber optic lines are strands of glass or transparent fibers that allows the transmission of light and digital information over long distances. They are used…

Principle objective of this lecture is to present on Snell’s Law. Snell’s law states that a ray of light bends in such a way that the ratio…

Major objective of this lecture is to present on Speed of Light and Refraction. At an interface between two media, both reflection and refraction can occur. The…

Prime objective of this lecture is to present on Light: Holograms and Spectroscopy. A hologram the size of a sugar cube could hold enough information for about…

Basic objective of this lecture is to present on Polynesian Star Compass. Here briefly focus on Polynesian Star Compass. The Hawaiians used a calendar based on the…

General objective of this lecture is to present on Polynesian Navigation. For the ancient Polynesians, finding Easter Island must have been like finding a needle in a…

Main objective of this lecture is to present on Astronomical Observational Techniques and Instrumentation. Here derive resolution and sensitivity requirements for astronomical imaging- spatial resolution: Rayleigh criterion and…

Primary objective of this lecture is to present on Charge Transfer Efficiency of Charge Coupled Device. here broadly describe on how efficiently can charge be moved…

Principle objective of this lecture is to present on Charge Coupled Device Advantages. It is a device for the movement of electrical charge, usually from within the…