You will agree that going to a destination on foot is more difficult than going on a bicycle. So you may question, how it is possible? Does bicycle produce energy? The energy comes from where?
The answer lies in the fact that bicycle can’t produce or convert energy, but it’s an efficient method of transportation.… Read the rest
Radiation belts are two ring shaped layer of plasmas high above earth’s surface. Earth’s magnetic field is responsible for keeping them in place. Sometimes the inner belt is called Van Allen belt because James Van Allen discovered it in 1958.
The lower belt
The lower belt starts at top of the atmosphere and exists up… Read the rest
Louis de Broglie
French physicist Louis de Broglie proposed this hypothesis. It was a ground breaking hypothesis in fact. Earlier Louis de Broglie was a student of history, later he built his career in physics. He proposed this famous theory in his PhD thesis in 1924 (some people think the year was 1923).
Newton thought… Read the rest
When we hear something about mass energy relation, we imagine the power of a nuclear bomb. It’s correct, when nuclei split into two or three parts it loses mass and that mass is converted into energy. Mass energy relation is one of the consequences of Einstein’s theory of relativity.
In fact the famous E=mc2 … Read the rest
Greek alphabet
Most of us don’t know Greek. But we need to learn Greek Alphabet because it is used in science and mathematics so frequently. I have tried to make a list with English and Bangla pronunciation.
Greek_Alphabet… Read the rest
