Molecules are simply a group of two or more atoms held by a chemical bond. These are primitive components of matter, whether they are gases or organic substances. Just like atoms, these molecules are a higher form of building blocks, the next step before a new form of matter is completely created. In the same […]
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Photo by: Darsie Creative Commons The semimajor axis is half of the major axis in an ellipse at its longest diameter, a line running through its center and the foci. The semimajor axis runs from the center to the ellipse’s edge through a focus. It is that measure of the orbit’s radius at its most
Ultraviolet radiation is a form of energy that travels through space. It lies between the electromagnetic spectrum of x-ray, which is 40 nm and visible light, 400 nm. While there are many artificial sources of UV radiation, the sun is still the primary source of radiation in nature.
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Sublimation refers to the process wherein solid object directly transforms into gaseous state without passing liquefaction. There are many substances that are known to undergo this process such as the element iodine. Under extreme temperatures, iodine is converted into a gaseous state without melting first. This process explains the presence of icy cap rings and
In physics and chemistry, superfluid refers to a special phase of matter which has been cooled to temperatures that are near absolute zero, its molecules exhibit unusual quantum properties. We know of superfluids being prepared in large laboratories to perform experiments. However through more recent space explorations and observations, it has been determined that superfluids
Although the public is familiar with microwaves as a tool to heating food, generally microwaves are minute wavelengths of electromagnetic energy that can be measured using centimeters, and are used in a broader sense. It is even believed in theory that microwaves are the cooled and calmed form of gamma radiation.
In astrophysics, a gravitational wave is a wavering or fluctuation in space-time, traveling outwards from the source. In short, it is like a ‘ripple in space-time’, just like the small waves produced by a boat sailing through a sea. This is caused by large, moving celestial bodies such as stars and black holes. The more
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How many times do you pass by your favorite ice cream parlor in a week? If you answer five times a week, then it is how frequent you pass by your favorite ice cream parlor in a week. That?s the simplest explanation of frequency. It is the number of times or the repetition of a
Gravity is the force which pull everything around us down towards the ground. Objects feel heavy because of the force of gravity on them. Isaac Newton realized that gravity is important not just for everyday objects around us, but also for the motion of planets and stars. He was able to explain the orbits of
In everyday conversation, most people usually use the words mass and weight interchangeably. In common usage, both mass and weight may be expressed in kilograms. For example, a person may say that his weight or mass is 75 kg. Although both properties of matter, mass and weight are two different terms and each has its
