## Johannes Kepler’s Law

Subject: Physics | Topics:

Johannes Kepler used the precise observational tables of Tycho Brahe to study planetary motion mathematically. He found a consistent description by abandoning both: Circular motion and Uniform motion. Planets move around the sun on elliptical paths, with non-uniform velocities. Here briefly focus Kepler’s first Laws of Planetary Motion and Kepler’s Third Law. Think critically about Kepler’s Laws: Would you categorize his achievements as physics or mathematics?

### Tutorial: Heat Transfer

Primary objective of this lecture is to present on Heat Transfer. The transfer of heat is normally from a high temperature object to a lower temperature object. Heat transfer changes the internal energy of both systems involved according to the First Law of Thermodynamics. By Thermometer you ca.....

### Fossil Fuels vs. Alternative Energy

Fossil Fuels considered to be less harmful than oil, but still limited in supply. Examples of Fossil Fuels: Petroleum (oil); Used to fuel vehicles and Coal (use in Powers electricity plants). Alternative Sources of Energy options to replace fossil fuels. Solutions to solve environmental pro.....

### Lecture on Spacecraft

The aim of this lecture is to present on exploring the Solar System: all about spacecraft or spaceflight. Here briefly describe on Flyby Missions: usually the first phase of exploration; spacecraft following continuous orbit – around the Sun, escape trajectory. Some famous example: VOYA.....

### Presentation on Light and Optics

General purpose of this lecture is to present on Light and Optics. Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Here briefly focus on What is light; How ca.....

### Nuclear Fusion

The origin of the energy released in fusion of light elements is because of interplay of a couple of opposing forces, the nuclear force which in turn combines together protons as well as neutrons, and the Coulomb force which in turn causes protons to repel one another. Nuclear fusion is a nuclear.....