The World Health Organization and other medical associations across the world have recommended handwashing using soap as one of the preventive measures against transmissible diseases. In fact, during the Ebola outbreak in Africa and COVID-19 pandemic, proper hand hygiene has been advanced as one of the solutions for containing these diseases. The Science Behind Handwashing […]
Tag Archives: Physics
Why Is Venus Hotter Than Mercury?
Mercury is the nearest planet to the Sun. It orbits at an average distance of 58 million kilometers. However, despite this proximity, Venus remains the hottest planet in the Solar System. It is about twice as far from the Sun of average as Mercury. Specifically, it orbits at an average distance of 108 million kilometers. […]
Buoyancy Explained: The Archimedes’ Principle
Greek mathematician, physicist, and engineer Archimedes of Syracuse suggested in his 250 BCE work “On Floating Bodies,” that any object, whether totally or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. The infamous assertion made by the ancient Greek polymath is […]
Centrifugal Force: Examples and Applications
According to Newtonian mechanics, a centrifugal force is an inertial force or an apparent force that acts on objects moving around a center or along a curved path and away from the center of the curve. Because of the force, these objects would move away from the center as they move around it or follow […]
Difference Between Absorption and Adsorption
Absorption vs. Adsorption: What is the Difference? The Basics of Absorption Absorption is a physical and chemical phenomenon in which or atoms, molecules, or ions enter or get trapped in a solid or liquid material. Unlike adsorption, the atoms, molecules, or ions are taken up by the volume and not by the surface. There are […]
Hard Disk Drive vs. Solid-State Drive
Hard disk drive or HDD and solid-state drive or SSD are two major types of data storage device. Take note that phonographic recording and optical discs, as well as DNA-based storage, are other types of storage mediums and technology. However, HDDs and SSDs are more popular because of their reasonable manufacturing cost and better storage […]
Special Relativity vs. General Relativity: The Difference
Renowned theoretical physicist Albert Einstein first introduced the Special Relativity Theory in the paper “On The Electrodynamics of Moving Parties” he published in 1905. In 1915, he also introduced another theory called the General Relativity Theory. What Is The Difference Between the Special Relativity and General Relativity? Note that both theories were derived from the […]
Newtonian Gravity vs. the Geometric Gravity of Einstein
There have been several theories postulated and formulated to define and explain the natural phenomenon now known as gravity. Two of these is the Law of Universal Gravitation introduced by Sir Isaac Newton in 1687 and the General Relativity Theory developed by Albert Einstein between 1907 and 1915. Note that Newton and Einstein had different […]