Possible Use of Alternative Energy Sources

Introduction Throughout the century, fossil fuel has been responsible for economic growth in many countries. For example, it has driven economic growth in industrial Britain, the dominant American economy, and the emerging Chinese manufacturing sector (Conserve-Energy-Future 2015). Owing to its tremendous potential in fuelling economic growth, in the past, researchers have linked energy use to […]

Energy Storage Technologies

Energy can be stored in Lead-Acid (LA), Nickel-Cadmium (NiCd), and Sodium-Sulphur (NaS) large-scale batteries, which function when two electrodes are immersed in an electrolyte to allow a chemical reaction and subsequent production of power. Applications Batteries are used in situations that require short bursts of strong power, portable and rechargeable power, and low steady power […]

Applications of Surface Plasmon Field-enhanced Fluorescence

Introduction Surface plasmon resonance spectroscopy (SPR) represents an optical technique that is widely used in the classification of both thin films and interfaces. The underlying principles that are synonymous with this technique are widely reported in literature. Analyses that benefit from the sensitivity of this technique are those that are regarded to as bio-active in […]

Bonded Wire Strain Gauges

When a piece of conductive metal is under strenuous force, it broadens and decreases in length. If the stresses stay within the elastic limit, then such strip can work as a gauge for measuring physical force. Strain gauge measures stresses from machinery e.g. in aircraft parts (Irwin and Robert 20). Bonded wire strain gauge is […]

Low Voltage Digital Design

Ultra-Low Voltage Ultra low voltage is a concept that has seen processors use less power while at the same time increasing their performance. Most digital circuits in the world today are being designed in such a manner that they can be more energy efficient and thus minimize power consumption. Aggressive voltage supply is one of […]

An analysis of the global warming phenomenon based on the first law of thermodynamics.

Global warming is among most discussed topics globally. According to the Oracle Think Quest, global warming is caused by the greenhouse effect. The greenhouse effect tries to explain that gases such as carbon dioxide trap energy from the sun. As a result, the earth’s atmosphere behaves like a closed system. However, opponents of this notion […]

Nuclear Power — Mega trend

Introduction The developmental milestone of the discovery of nuclear fission in the early 30’s paved way to the advent of nuclear power as a source of energy. Nuclear power is a clean (environmentally friendly) source of energy derived from uranium –a non-renewable mineral source. The global rate of energy consumption is on a direct proportional […]

Nuclear fusion

The sun is known to produce a lot of energy inform of heat and light. The sun produces approximately 4×1026 watts per second. It derives its energy from the fusion of the hydrogen atoms within its core. Fusion occurs when light nuclei such as hydrogen nuclei join together into heavier nuclei, like those of helium. […]

Tensile testing of metallic materials

Introduction When we refer to mechanical properties of materials, whatever crosses the mind is the stress-strain curve. Ideally, both shear stress (σ) and strain (ε) testing are inevitable when it comes to material testing. While shear stress testing correlates an elongation force to the cross sectional area of a material, tensile testing subjects a material […]

Air-conditioning and Heating Systems

Introduction The first question to answer when selecting the most appropriate heating or cooling system is whether to include heating, air conditioning, or both. Although air conditioning is a common need in most places today, this can be effectively addressed by considering design and construction requirements, behavior, and other factors such as dehumidification in humid […]

Application of Computational Fluid Dynamics to Flow Next to High-Rise Buildings in Hong Kong Due to Air-Conditioner Heat Rejection

The article under consideration is titled “Application of Computational Fluid Dynamics to flow next to high-rise buildings in Hong Kong due to air-conditioner heat rejection”. It is written by Bojic M., Savic S., and Nikolic D. in 2008 in the International Journal of Energy Technology and Policy. This article presents the Computational Fluid Dynamics simulation […]

Blue Sky and White Clouds

It is undeniable that a blue sky will occasionally have some white clouds and there are some underlying reasons behind this. In this case, people have always wondered why a blue sky contains some white clouds. White clouds will be seen in a blue sky because their water droplets are large enough. This means that […]

Non-Conventional Energy Resources

Introduction In the world, there exist different forms of energy that are categorized into two groups that include the fossil fuels and non-fossil fuels. Technological advancement has played a key role in determining the form of energy a particular country depends on. Developed countries such as the U.S., Japan, Singapore, Malaysia and China among others […]

Cannon vs Aristotle

The scientific revolution experienced during the sixteenth and seventeenth centuries marked a completely new perspective in the approach to several theoretical and methodological approaches. Prior to this scientific revolution, most conventions were based on Aristotelianism, a fact that changed dramatically with the inclusion of scientific experimentation. From that period on, the previously strongly held beliefs […]

Water Desalination

Background Analysis of High Recovery Brackish Water Desalination Processes using Fuel Cells (2009) was written by Rajindar Singh and details a water desalination technique using fuel cells. The author is the Technical Manager, Industrial Purified Water, Siemens Water Technologies, Colorado Springs, CO, USA. Rajindar Singh Singh has authored and co-authored several articles that mainly touch […]

Large Hadron Collider

The standard model of studying particle physics is surrounded with several issues in the wake of the anticipated entry of the Large Hadron Collider (LHC). Particle physicists are not sure whether LHC will challenge or add to the standard model used to study particle physics presently. Moreover, LHC might explain the some controversial macrocosmic issues […]

Water Cycle Process

Introduction Water is not stagnant on the earth surface. It evaporates and precipitates back. This process involves absorption of heat by water molecules which leads to breakage of molecular bonds. As a result, water molecules are able to move from the earth surface to the atmosphere through a process known as evaporation. On the reaching […]

Aristotle’s Physics

Introduction For a very long time Aristotle’s book Physics had a profound effect on the development of natural science. This paper is aimed at discussing his views on the tasks of a natural philosopher. Moreover, it is necessary to evaluate its applicability to modern science. One of the key arguments that he makes is that […]

Effects of Electromagnetic Fields from Mobile Phones and Microwave on Human Health

Several studies have revealed that electromagnetic fields impact significantly on the human health. One of the sources of these electromagnetic fields is the mobile phones. This poses a big danger to the community because the mobile phone usage remains very high in the world. In most countries around the world, more than half of the […]

Fluid Mechanics

The Experiment Sketch The given experiment was conducted to calculate the discharge rate of water with the help of a hydraulic bench. In the course of the experiment, the following tools were used: 1) a hydraulic bench (8 M.M. Get, Equipment No. 1752), 2) a small amount of water; 3) and two rubber caps, with […]

Carbon Fibre Composites

Abstract Carbon fibre composites are most commonly being used for reinforcement, as they provide much stronger durability, lasting wear and reliability. The matrix of the carbon fibre must be used with a type of a bonding agent that will serve as the strengthening element of the resulted product. In the cross section, it adds properties […]

The Common Sense Science

The common sense scientists disprove claims from physics discipline. Albert Einstein laid the foundation for two successful theories that have withstood the taste of time over one hundred years of experimental tests. His theory of annus mirabilis, which deals with quantum mechanics, was explained in the two theories. The string theory and cosmological external inflation […]

OHM’s Law and Circuits

Abstract The purpose is to understand Ohm’s law and simple series circuit that has resistors and diodes. This simple circuit leads to establishment of relationship between voltage, current, and resistance in various devious. Data obtained after performing the experiment are inserted in a graph with a view of deducing whether data fit. To execute this […]

Nuclear Power’ Two Opposing Sides

Introduction The debate on nuclear power has taken different directions due to the disagreements it has created among governments. Today, most regimes have justified their possession of nuclear weapons on basis of self defense or what may be termed as “protection of national security against aggression”. There are many reasons why different nations have remained […]

The Concept of String Theory

String theory is a concept developed by physicists trying to explain the fundamental nature of matter and space. The concept has various interpretations, but has the ability to explain the phenomenon of existence. Since the most fundamental particles do not exhibit the properties of matter that bigger objects have, some scientists consider them non-dimensional (Van […]

Rainbows and Blue Skies

Introduction When we look around, there are many questions one would want to ask. Although most of the answers are found through academic approaches, the truth is that the broadness of this discipline makes it challenging to exhaust every natural phenomenon. Among the many questions asked is the explanation for the color of the sky. […]

Wind and Solar Energy

Introduction There is an urgent need for dependable, efficient and low-cost energy to alleviate problems of energy insecurity as well as environmental pollution. For example, Jacobson and Masters (2001) proposed that the U.S. could meet its Kyoto Protocol obligations for decreasing carbon dioxide discharges by substituting 60% of its coal production plants with wind energy […]

The Photon Definition and Effects

The photon description Basically, a photon may be termed as a quantum, a detached packet of light or an electromagnetic power. This implies that the photon occurs as an electromagnetic force carter, a different kind of electromagnetic radiation and a light quantum. The electromagnetic force effects can simply be observed under the macroscopic and atomic […]

Color and polarized light

To begin with, it is imperative to note that color is derived from the distribution of light particles over a given wavelength which interacts with the observer’s eyes at normal range. The color of an object is associated with its material and the associated source of light that shines over it. It is also based […]

The Interference of Colors

In physics, a new waveform results when two or more waves superimpose on each other, and this development is referred to as interference. This interference, as it applies to waves, is either constructive or destructive, or a combination of both. In constructive interference, “the amplitude of the wave that results is greater than that of […]

Multiverse Hypothesis in Physics

In physics matter is regarded as anything that has mass and occupies space. Matter can either be formed from particles of same or different kinds. Elements are those substances that are formed from particles of the same kinds, while compound are formed from particles of different kinds. Compounds and elements are formed of smaller particles […]

Alternate processing methods for xrays(radiography)

Radiographic film processing involves a process where an exposed film is subjected to specific treatment to enable clear visualization of exposed parts to enable identification of abnormalities under scrutiny for an effective and conclusive diagnosis. It is the production of images on a radioactive sensitive material using non-destructive semiconductor failure technique of analysis. This method […]

Pros and cons of nuclear power

Introduction Nuclear power in description is a contained nuclear fission that generates electricity and heat. Nuclear power plants provide about 6% of the world’s energy and 14% of electricity. Nuclear energy is neither green nor sustainable energy because of the life threatening aspect from its wastes and the nuclear plants themselves. Another reason is that […]

Dangers of Nuclear Power

Power is important to human beings as it is used for many purposes. All the sources of energy have their own drawbacks even those considered to be safe. For instance, energy sources like hydropower have their limitations although many people consider them to be safe. However, developing nuclear alternative energy sources such as nuclear energy […]

How maglev trains work

Introduction Maglev trains or magnetic levitation trains were opened up for commercial transport in 1984 when they operated between Birmingham airport and the main railway. Britain was the first country to develop these trains, although other countries developed their sns and used them to transport mainly people. Maglev trains are based on the principle of […]

Different Sources of Energy

Energy can be transformed to a range of states. Energy in different states can be used for various physical works. Energy can be utilized in natural processes or in supplying services to the community. For instance, an inner combustion engine transfers the latent chemical energy present in petrol and oxygen into heat, which is next […]

Can you study paranormal scientifically?

Paranormal is an event that occurs when human beings develop perceptions that are beyond scientific explanation. It is an element experienced beyond conventional principles of science (Smith 9). Hence, these perceptions cannot be explained using ordinary scientific concepts. Examples of such phenomena include telepathy, clairvoyance, reincarnation, psychometric, prophecy, levitation, precognition and telekinesis (Smith 20). Indisputably, […]

The Path of Light

It is sometimes very difficult to fathom the real form of light and how it travels. One can not understand fundamental concepts about light if in first place they don’t understand what light is. Light can simply be defined as visible electromagnetic radiations which enables the human eye to see (Burnie 9). The electromagnetic radiations […]

The Formation of Rainbows

The rainbow is one of God’s most adored creations, perhaps due to its multiple colors and unique shape. In most traditional societies the rainbow is used to convey information about the changes in weather. For instance, some African communities believe that if a rainbow appears in cloudy weather, chances of rainfall are narrow. Therefore, this […]