Light or visible light is an electromagnetic radiation that can be perceived by the human eye. Within the electromagnetic spectrum, it is situated after radio waves, microwaves, and infrared radiation, and before ultraviolet radiation, x-radiation or x-rays, and gamma rays. Nevertheless, it also exhibits all the fundamental properties of electromagnetic radiation, including the wave-particle duality. […]
Tag Archives: Science
Electromagnetic Waves vs. Mechanical Waves
Waves are disturbances and movements that transfer energy from one place to another. Both electromagnetic waves and mechanical waves are two important ways that energy can be transferred or transported around. The two also share several similarities. For starters, they can be measured and quantified by their wavelengths, frequencies, and amplitude. They can also be […]
Electromagnetic Radiation: Characteristics and Properties
Understanding the characteristics and properties of electromagnetic radiation can help in understanding further what exactly it is, as well as in appreciating its different forms: radio waves, microwaves, infrared, visible light, ultraviolet, x-radiation or x-rays, and gamma rays. The Characteristics and Properties of Electromagnetic Radiation Description and Definition: Classical Physics vs. Quantum Mechanics • Classical […]
What is Electromagnetic Radiation: Simplified Explainer
According to classical physics, electromagnetic radiation is energy transmitted at the speed of light through oscillating electric and magnetic fields or electromagnetic waves. Also, according to quantum physics, it is described as the wave or flow of photons of the electromagnetic field that propagate or radiate through space or a physical medium, carrying electromagnetic radiant […]
How UV Radiation Damages the Skin, Causes Cancer
Ultraviolet or UV is a form of electromagnetic radiation and an electromagnetic wave that sits after the visible light and before x-rays in the electromagnetic spectrum. It has a wavelength that ranges from 10nm to 400nm and frequencies ranging from 30 PHz to 750 THz. Note that the spectrum consists of other forms of electromagnetic […]
Simple Carbohydrates vs Complex Carbohydrates
Carbohydrates or saccharides are one of the three macronutrients alongside fat and proteins. Hence, as such, our bodies need them in larger amounts compared to micronutrients such as vitamins and minerals. They are also the primary source of energy in the body. It is also important to note that a carbohydrate is a biomolecule consisting […]
Macrophages: Functions, Mechanism, Significance
Macrophages are one of the major types of white blood cells or leukocytes of the immune system that play an important role in the innate immune response against pathogens, foreign substances, cancer cells, and cellular debris. What Are Macrophages? Where Do They Come From? How Do They Work? Origins and Development of Macrophages Some of […]
Thymus: Functions and Significance
The thymus is a primary lymphoid organ located behind the sternum, between the upper portions of the lungs, and in front of the heart. As part of the immune system, it is primarily responsible for the maturation and differentiation of a specific type of white blood cells or leukocytes called thymus leukocytes or T cells. […]
T Cells Explained: Roles and Types of Thymus Lymphocytes
Thymus lymphocytes or T cells are a specific type of white blood cells or leukocytes developed in the thymus organ that play a central role in the immune response and the adaptive immune system. Specifically, T cells attack cells infected by a pathogen, activate other immune cells, and produce cytokines and chemokines, while also playing a […]
What are Chemokines: Role in Immune Response
Chemokines are small proteins that form a specific class or subgroup of signaling molecules called cytokines. Note that the word “chemokines” is a neologism for “chemotactic cytokines” coined in 1992 during the Third Symposium on Chemotactic Cytokines. Note that “chemotaxis” pertains to the movement of an organism or cells in response to a chemical stimulus […]
