Essays on Infrared Radiation

Ultraviolet light (UV light) is a type of electromagnetic radiation that is located between visible light and X-rays in the electromagnetic spectrum. It is invisible to the human eye, and has a frequency greater than that of visible light but lesser than X-rays. It has a wavelength ranging from about 10 nm to 400 nm (ISO, 2007). UV light is a part of the radiation that comes from the sun. It can also be produced artificially by electric arcs, black lights, tanning lamps and mercury vapor lamps. The name Ultraviolet literally translates to “beyond violet”, as it has a ...

Deforestation is the act of clearing the greenery and vegetation on Earth on a large scale. It occurs when trees and entire forests are cut down and cleared away for various purposes. This brings a lot of damage to the Earth’s surface, simultaneously creating environmental problems as well. Forests account for 30% of the Earth’s land, and they are an asset to the world’s ecosystem, however, much of this area is cleared away and vacated by mankind to serve their purposes. Although deforestation is done for needs such as housing, residence, mining, shopping and other means, ...

Infrared Cameras

Introduction An infrared camera is a non-contact device that detects infrared energy and converts it into a visible light display. The infrared energy is first translated into electrical impulses that are then converted into data for camera display. The image or video formed on the screen is of different colors depending on the intensity of the infrared emission. Most cameras have built-in visible light digital cameras that allow merging of infrared and visual images. There are two different types of infrared cameras; cooled cameras and uncooled cameras. The cooled infrared cameras produce superior image qualities than uncooled cameras but ...

Infrared Camera (or IR Camera) is a device that utilizes infrared radiation to form images. The rational of the camera is similar to a common camera that uses visible to capture image (Thermal imaging cameras for Research and Developments, n.d). However, the IR camera deviates from the normal nanometer range of visible light which is 450-479 nanometers, IR cameras function in wavelengths reaching up to 14,000 nm longs. The device had a long history behind at. Sir William Herschel pioneered the discovery of infrared, but the infrared rays were used mainly to measure thermal energy. The detectors were used during the ...

Pragmatism can be defined as a philosophical school of thought that places emphasis on practical ways of solving problems or doing things. According to Carolan (4), pragmatic environmentalism is the key to offering real-world solutions to environmental sustainability. It balances the importance of economic necessity while at the same time trying to preserve the environment. This requires individuals to create societies that are environmentally and economically sustainable. In understanding the current environmental issues facing the globe, the author places emphasis on the interactions between the material and social worlds. The social world basically refers to the dynamics and structures that ...

What is sunlight?

The sun provides tirelessly every square meter of the earth's surface, which it attacks, with an average of about 1370 watts of power (in the form of electromagnetic radiation). We say that the sun burns, but actually it does not. Instead, the sun is a giant nuclear reactor (Layton & Freudenrich, 2000). This solar energy is called the solar constant, since it does not change, except for minor fluctuations. Solar energy is sent in the form of light waves. Light is an electromagnetic wave. The frequency of light - or how fast the waves vibrate - determines the differences in color. ...

Introduction

Physics is an abstract field of science that influences our lives in more ways than we can imagine. From waking up every morning, to the water we drink; from driving to work, to the music we listen to; from the internet, to the cell phones that we use so often, physics governs all their basic operating principles. Many natural phenomena throw questions whose answers lie deep in physics. Why are lightning flashes so spectacular? How long does it take for light from a star to reach us? How is a rainbow formed? What causes a boomerang to swirl back? Many of these ...

Introduction

Pollutant gases tend to have an impact on both health and environment. Many nations rely on oil for energy use and advancement, hence imports every last bit of its oil and gas needs. Unfortunately, this has brought about dangerous effects upon the environment such as affecting the ozone, causes global warming, acid rain and smog. This may come about when fossil fuels are burnt to form these gases. The formation of toxic gases and their harmful impacts on human health and environment as well as biological effects by thermal pollution that is equivalent to the burning processes are being ...

Polyvinylidene fluoride polymer first exhibited the piezoelectric effect in the year 1969 followed by the pyroelectric effect some years later, leading to the development of numerous applications of pyroelectricity and piezoelectricity. PVDF possesses many attractive features as a tactile or touch sensor. Tactile sensors can be used to monitor skin conditions. They find use in minimally invasive surgery. Tanaka et al. developed an active palpitation sensor to detect hypertrophy and prostate cancer. Pyroelectric and piezoelectric polymers help in energy conversion. The Energy Harvesting Eel device created by Taylor et al. used piezoelectric polymers for the conversion of mechanical flow energy ...

The world of the 21st century has changed significantly from the way it looked back In the 19-20th centuries. Technological progress has brought a lot of useful things that made our lives much more easier. To start with electricity: It became available to the public in 1930s but the industrial part of the society started to use it even earlier. From that moment we became dependent on it. All electronic devices are connected with it directly. Unfortunately, with all the gain we gat from new technologies there is negative influence on us, environment as well. The main problem that ...

Introduction

In the recent past, the increased release of carbon dioxide has been a very controversial issue in the world. This is due to the adverse effects of this gas to the atmosphere. Human activities have driven the concentration of carbon dioxide in the atmosphere upwards over the last 50 years. For instance, it is estimated that U.S. releases 1.4 billion tons of carbon dioxide every year. The increased carbon dioxide has enhanced the natural 'greenhouse effect' causing climate change and global warming.

Thesis statement

We will explain the effects that are caused by the increased carbon dioxide emission, why the issue matters, ...

The paper is dedicated to the study of ecological balance and possible reasons that could lead to the consequent change of the world climate. In particular, two groups of hypotheses are analyzed. The first group deals with reasons that are conditioned by the changes in the energy received by the Earth from the Sun. The possible changes in the Sun itself and in the dust clouds that can affect the way the energy is taken by the planet are considered. The second group of hypotheses is dedicated to the changes in CO2 level and possible consequences it can lead ...