An Astronomical Introduction: Stars
A star is a huge shining ball of super-hot plasma (electrically charged gas). it starts nuclear reactions that release energy as light due to the great temperature and pressure inside.…
An Astronomical Introduction: Galaxies
Galaxies are vast groups of stars held together by a pulling force called gravity. Inside a galaxy the region in between stars called interstellar, can be empty or full with…
An Astronomical Introduction: Nebulae
Nebulae are huge clouds of gas and dust that lie in the space between the stars. The ones we commonly observe are located right within our own galaxy, the Milky…
What is really matter to a physicist ?
This is what a physicist will tell you if you cannot find any matters.
Laser Concept
The main ingredient of the first quantum revolution, wave-particle duality, has led to inventions such as the transistor and the laser that are at the root of the information society.…
The misconception between science and religion
If we look at our present human society, we will see, some of us are finding the proofs of the existence of God everywhere. They spot pieces of evidence to…