Tag: Physics explained

On September 21, 1995, reports of Hindu idols seemingly drinking milk swept the globe, captivating millions and causing a global sensation. But what is the science behind idols drinking milk? The answer lies not in a divine miracle, but in the fascinating world of physics, specifically capillary action and surface tension.

According to physics, voltage is not a physical substance composed of ingredients, but is instead a measure of the electric potential difference between two points. The concept of 'ingredients' stems from a common misconception, as voltage is an energetic state, not a material object.

A single gram of antimatter annihilating with a gram of matter releases the energy equivalent of a large nuclear bomb, far more than any conventional fuel. This incredible fact reveals that the answer to what yields the most energy per gram depends entirely on the type of reaction, from familiar chemical processes to the mind-bending physics of antimatter.

In a closed system, the total amount of energy remains constant according to the law of conservation of energy. Understanding what does the total energy include is fundamental to physics, as it comprises the sum of all forms of energy present within that system.

According to the first law of thermodynamics, the total energy of an isolated system remains constant; energy is not created or destroyed, but merely converted from one form to another. This means a system's total energy is a sum of its many constituent parts, but what is total energy made up of specifically?

According to Einstein's theory of special relativity, a body at rest possesses a tremendous amount of energy, even without any motion. This intrinsic energy, known as rest energy, is directly related to its mass through the iconic equation $E=mc^2$. Understanding what is the energy of a body at rest requires looking beyond simple kinetic energy to explore the fundamental nature of mass and energy.