Understanding The Doppler Effect And its Applications Doppler Effect We experience Doppler effect every day. However, we may not realize that what we experience is because of Doppler effect. Often, we notice that when an emergency vehicle, with a blaring siren, approaches us the loudness and the pitch of the sound keep increasing. The… Continue reading Understanding the Doppler Effect And its Applications
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Understanding the Raman Effect: Scattering of Light Explained
Understanding The Raman Effect Scattering of light Explained The Raman Effect The Raman effect, also known as the Raman scattering, is a light scattering that provides remarkable details of the substance that scatters the light. The spectrum that we see as a result of the Raman scattering is a unique fingerprint of that substance. Sir… Continue reading Understanding the Raman Effect: Scattering of Light Explained
Why heat flows from hot to cold?
Why Heat Flows From Hot To Cold Side? Overview Why does heat energy spontaneously flow from the hot side to the cold side? Why does it never spontaneously flow in the reverse direction? For instance, when you drop ice cubes in a glass of water, at room temperature, ice cubes start melting as heat… Continue reading Why heat flows from hot to cold?
What Is Heat?
What Is Heat? Overview For centuries, one of the big questions that remained unresolved in physics was the simple question: what is heat? Physicists could not fully explain what gives rise to heat energy. Also, they could not understand why heat flows from hot to cold spontaneously but never does in the reverse direction. … Continue reading What Is Heat?
Ludwig Boltzmann
Ludwig Boltzmann and His Discoveries Austrian physicist (1844 – 1906) Overview Ludwig Boltzmann was an Austrian theoretical physicists of 19th century who made remarkable contributions in the fields of kinetic theory, statistical mechanics and thermodynamics. He was one of the great pioneers who helped us understand what heat really was. He showed us the importance… Continue reading Ludwig Boltzmann
Capillary Action
Capillary Action https://amazingphysicsforall.com/wp-content/uploads/2023/10/RaisingWater_On_PaperTowel_9384.mov Over View After watching the above video, you may wonder why coffee slowly creeps up in the paper towel, that too against gravity. What phenomenon is responsible for this? The short answer is it is the capillary action. Other names for this phenomenon are capillary motion or wicking. Let us understand… Continue reading Capillary Action
Surface Tension
Surface Tension You can watch the summary of this post as video here. Picture 1: Floating Metallic Coin due to Surface Tension Picture 2: Surface Tension makes a needle float. Overview Looking at the pictures above, you may wonder what these floating objects are made of. Are they really metallic objects? Yes, they are metallic… Continue reading Surface Tension
Are We Alone in the Universe? Exploring the Possibility of Extraterrestrial Life
Are We Alone In the Universe? Exploring the Possibility of Extraterrestrial Life Picture credit: https://cdn.pixabay.com Watch video which provides the summary of this post. “Eternal silence of these infinite spaces frightens me.” Blaise Pascal, French philosopher and mathematician. Overview One of the unsettled questions, in the scientific community as well as in the mind… Continue reading Are We Alone in the Universe? Exploring the Possibility of Extraterrestrial Life
Special Relativity
Special Relativity https://www.maxpixel.net Overview In the year 1905, while working as a patent clerk in Switzerland, Albert Einstein published four papers which upended the world of physics. One of the papers was on special theory of relativity. By special relativity paper, Einstein put forward the following radical ideas about the nature of the universe.… Continue reading Special Relativity
What is time?
What is Time? Click here to watch the summary of this post as video. Overview Scientists often highlight the following baffling attributes of time: It is relative and is NOT absolute. Before the Big Bang, it did not exist. It dilates while moving. It freezes inside a blackhole. No surprise, these facts may make… Continue reading What is time?