Operant conditioning, also known as instrumental conditioning, is a method of learning that employs punishments and rewards for behavior. In this method, a link is established between a behavior and a consequence (whether positive or negative) for...
The moon, being our closest celestial neighbor, has been subject to critical observation or scrutiny over the years. It was formed some 4.5 million years ago, about 60 million years after the solar system itself. It is the only natural satellite...
A British physicist named Ernest Rutherford described alpha particle for the first time in 1899. He also differentiated and named alpha and beta radiation. However, it wasn’t until 1928 that George Gamow solved the theory of alpha decay using...
Gone are the days when keyboards were referred to as a simple plate with alphanumeric buttons. During the past decade, we have seen ugly, bulky keyboards shaping into stunning, sleek designs. This is the era of smart and stylish keyboards. They are...
Radiation can be defined as the energy that travels through space or through a material medium in the form of particles or waves. Depending on the energy of the radiated particles, radiations can be categorized into two groups: Ionizing radiation:...
Abraham Lincoln is widely regarded as one of the three most popular United States presidents of all time; the other two are George Washington (the first president) and Franklin D. Roosevelt. Lincoln took the Oval Office on March 4, 1861, a month...
Have you ever wondered who the most powerful Marvel characters are? As an MCU fan, I am sure you do. But to be frank, it is a herculean task to answer. The list below ranks the most powerful comics characters based on their raw power and intellect...
The word “catalyst” is derived from the Greek word katalyo, which means “to pick up,” or “to unite,” or to annul.” The concept of the catalyst was first described by chemist Elizabeth Fulham in 1794. She...
Vehicles that are used by the military either to engage in combat or transport personnel are distinguished as military vehicles. After the Second World War, new technologies were rigorously introduced to make these machines more efficient and...
Anyone with the basic understanding of cosmology is aware of the certainty that, sometime in the distant future, our Earth will die. But the question is how and when. The death of the Earth can be explained in two ways; biologically and geologically...
A fact is something that is known to exist or to have happened, about which there are enough information and proof. For example, “Mars is a planet” is an astronomical fact, and “the word alien contains three vowels” is a...
Planet X is a hypothetical planet that is located about 400 astronomical units (AU) away. It may take up to 20,000 Earth years to complete one full orbit around our Sun. The planet has not yet been observed, but mathematical calculations suggest...