2013 WIRELESS TRANSMISSION 1.2 RADIO PROPAGATION: Radio propagation is the behavior of radio waves when they are transmitted‚ or propagated from one point on the Earth to another‚ or into various parts of the atmosphere. As a form of electromagnetic radiation‚ like light waves‚ radio waves are affected by the phenomena of reflection‚ diffraction‚ and scattering. ERIC SAVIOUR ARYEE OKAI‚ OCT‚ 2013 ASSIGNMENT #1 With the aid of simple diagram(s)‚ explain the three propagation phenomena
Premium Radio Electromagnetic radiation Electromagnetic spectrum
reproduce the wrong type of cell for that area of the body. This is what we call a tumor. If this tumor begins to spread to other areas of the body it’s diagnosed as cancerous. Many studies have been performed to try to prove that cell phone electromagnetic radiation‚ in the form of radiofrequency‚ can indeed damage DNA. In the document “Cell Phones and Cancer Risk‚” from the National Cancer Institute‚ it states that: “The results of these studies have generally not provided clear evidence of a relationship
Premium Electromagnetism Photon Electromagnetic radiation
The electromagnetic spectrum consists of seven different waves. The waves are in the order of how big the wavelength is and its frequency‚ from the biggest to the smallest: Radio waves‚ Micro waves‚ Infrared‚ Visible light‚ Ultra Violet‚ X-rays and Gamma rays. Each of them has their own special use in everyday life. For example‚ to turn on a TV you need to use Radio waves‚ to heat your food you use Microwaves and X-rays are used to look into people’s bodies. Some waves‚ like Radio waves can be as
Premium Electromagnetic radiation Infrared Electromagnetic spectrum
of Electromagnetics Electricity and magnetism in three dimensions is understood through electromagnetic theory. Even simple circuit theory is founded on electromagnetic principles. DIMENSIONS AND UNITS We will use Système Internationale d ’Unités or the SI system of units whose fundamental units are: kilogram‚ meter‚ second‚ Ampere‚ Kelvin‚ and Candela for mass‚ length‚ time‚ temperature‚ and luminous intensity‚ respectively. We will also work with frequency and wavelength of electromagnetic fields
Premium Analytic geometry Dimension Cartesian coordinate system
are not visible to humans yet are visible to some insects. UV rays get their name from electromagnetic waves which frequencies are higher than those that humans can identify as the colour violet. Although ultraviolet radiation is invisible to the human eye‚ a lot of people are aware of the effects of UV rays in tanning beds and the sun through sunburn and skin cancer. -Wikipedia The electromagnetic spectrum‚ this picture demonstrates the approximate wave length‚ colours of the rays
Premium Ultraviolet Electromagnetic spectrum Sun tanning
Sunlight and Concave Mirror for Cooking Researchers: Pamatmat‚ Mikaela Franchesca Siacon‚ Maria Sherlene Dianne Cruz‚ Jeremy Anne Lardizabal‚ Zaree Dominique Macagba‚ Danielle Martinez‚ Kyrene Teacher: Sir Vincent Sabong Abstract The researchers thought of trying to come up with a makeshift solar cooker in order to test if this way of cooking may be effective and useful in substituting for a frying pan and a stove. The solar cooker may be a possible alternative when cooking outdoors under
Premium Sun Light Ultraviolet
is always charged. No more worrying about forgetting to charge the battery. Sound’s Impossible? 1.2 Objective The objective of this project is to increase the mobility of cell phones by charging them using the energy present in a part of electromagnetic spectrum‚ which is present everywhere in the free space‚ and solar energy without using external AC power source. 1 1.3 Intended Approach We have partitioned our project into three phases on the basis of energy types used for charging
Premium Electromagnetic radiation Radio Solar cell
footnoted sources)‚ at its heart it is a story about ordinary people who took on an extraordinary challenge in bringing their research forward. HAARP Boils the Upper Atmosphere HAARP will zap the upper atmosphere with a focused and steerable electromagnetic
Premium Electromagnetic radiation Electromagnetic spectrum Photon
ACCIDENT IDENTIFICATION USING RF AIM: The aim of this project is to implement an accident identification system wirelessly using one of the wireless communications Radio Frequency. DESCRIPTION: Generally we don’t have any information while our closest friends or family members met an accident at some distance. Due to that we may face severe situations at sometime. To avoid this problem we are using accident identification system using RF‚ by this we get the intimation
Premium Radio Frequency Electromagnetic spectrum
Microstrip Antenna using different feed techniques and study the effect of antenna dimensions Length (L)‚ Width (W) and substrate parameters relative Dielectric constant (εr)‚ substrate thickness on Radiation parameters of Band width. Low dielectric constant substrates are generally preferred for maximum radiation. The conducting patch can take any shape but rectangular and circular configurations are the most commonly used configuration. Other configurations are complex to analyze and require heavy numerical
Premium Antenna Electromagnetic radiation