How LEDs work and a short guide on Semiconductors

Working principle of LEDs and why they are made from semiconductors. A quick guide on semiconductors and how doping can change them. More discussion here- http://devender-maun.blogspot.com/2015/03/how-leds-work-and-short-guide-on.html

How do solar cells work?

Discussion on how do solar cells work? Why semiconductors are used in solar cells and explanation of photoelectric effect? For more details and schematics check this link: http://devender-maun.blogspot.com/

Why does lightning strike?

Reason behind lightning strikes and some fun facts on thunderstorms. 

Why Is Sky Blue And Grass Green?

Discussion on why various objects have different color and fundamental mechanisms by which colors are produced. We discuss Rayleigh scattering, electronic transitions and concepts of absorption and reflection.

How was the Universe created? The Big Bang Theory

Discussion on how the Universe was created. A short guide on the Big Bang Theory also. Check this for details- http://devender-maun.blogspot.com/

A short guide on subatomic particles- Quarks And Leptons

A short guide on what constitute matter. A quick summary of subatomic particles. For more details check this- http://devender-maun.blogspot.com/

Why Do We Feel The Heat Of The Sun

Discussion on why do we feel the heat of the sun. For more details check this- http://devender-maun.blogspot.com/

How is heat conducted?

Discussion on how is heat conducted and why metals are good conductor of heat.

Why do metals conduct electricity

Understanding why metals conduct electricity whereas ceramics/dielectric do not.

Difference between metals and ceramics

Trying to understand difference between metals and ceramics in terms of bonding. 

Why do solids exist?

Discussion on why do material exist as solid? Fundamental driving force and concept of bonding.