Wait a second!
More handpicked essays just for you.
Electromagnetic radiation easy
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Micro Paper
582 Words2 Pages
Recommended: Electromagnetic radiation easy
Microwaves are electromagnetic radiation waves that have a very short wavelength. These waves can be used in various ways, for example, radars, communication or heating.
In the 1940’s, during World War 2, a scientist called Percy Spencer was doing research with these microwaves. He then found out about how they are able to excite food molecules, causing food to heat up very quickly.
When first invented, microwave ovens weren’t meant to be kitchen appliances. They were named “Radaranges” and when they were firstly sold, they were still too large and too expensive for home use. Home-use microwave ovens only started being sold at around 1967. Now, a microwave oven is known to be a small appliance for kitchen use, which heats up food through radiation.
There are many important parts in the production process of a microwave. The oven is composed of electric motors, relays, control circuits, an oven cavity, a front-control panel and the cavity door.
The first step of the manufacturing process of a microwave oven is to build the cavity door. To do so, machines are used to press metal...
Related
Taking A Look At The Five Stages Of Egyptian Revolution
1127 Words | 3 PagesOn January 25, 2011, Egypt dissolved into protests--a revolution thirty years in the making. The quasi-middle class (not comparable to the American standard of a middle class) of college educated youths and the working class united based on the culmination of years of corruption and abuse and the sparks that the Tunisian Jasmine Revolution and the 2011 Alexandria New Year’s Day bombings represented. The “Five Stages of Revolution” model can be applied to Egypt’s revolution, as well as some aspects of the J. Brown Paradigm of National Development, such as the Identifiable People Group, presented themselves throughout Egypt’s conflict.
The Effects of Technology Warfare Due To The Attack on Pearl Harbor
1147 Words | 3 PagesRadar stands for Radio Detection and ranging, it dates back to the 1880’s when Heinrich Hertz first invented it. (Farina 1-1) Many other inventors eventually started inventing their own type of radar. Christian Hulsmeyer in 1904 had a patent for monostatic pulse radar which was used for the detection of ships for preventing collision at sea. In 1922 A. Hot et al. observed a fluctuating signal at the receiver when a shipped passed between the receiver and transmitter. (Farina 1-1)
Satellite Surveillance
3808 Words | 8 PagesMTC ONLINE, " Reports of Current Experimentation with Microwave and EM Weapons," <http://www.heart7.net/mcf/1.html> (10 August 2003)
That's The Way The Cookie Crumbless By Dr. Joe Schwarcz
1240 Words | 3 PagesIn these commentaries, Schwarcz also answers questions that people and the media have and offer advice to people. For example, a listener asked “How long one should allow microwaved food to stand after cooking to ‘allow the microwaves to escape?” He responded by describing how the food on the inside is cooked through the heat transfer from the exterior, which allows the food to finish cooking. Additionally, it is essential to leave the food to stand for a few minutes. However, this does not allow the microwaves heat to leave, but for the interior to finish cooking as well as the exterior. If you don’t leave the food to settle there for a few minutes than it will leave the cooking process incomplete.
Climate Change: We Need a Carbon Tax
1182 Words | 3 PagesMechanical Engineering 130.2 (2008): 6 - 7. Academic Search Complete. Web. The Web. The Web.
Ww2 Innovation Essay
488 Words | 1 PagesThe escalation of aerial warfare in World War II created a demand for more sophisticated radar technology. Radar could be used for seeing long distances, detecting remote threats, and navigating. It was able identify nearby aircraft using radio microwave transmissions (Sheehan 42), due to the fact that electromagnetic waves reflect off of metal. In early 1935, radar could detect objects at under 10 kilometers; and by the end of the year that number increased tenfold with the ability to detect objects 100 kilometers away. Radar sets could even be made small enough to use in vehicles when Henry Tizard brought forward the concept of building them using a cavity magnetron (Jenkins 195).
Importance Of Electric Skillet
755 Words | 2 PagesThey can be used in break rooms at work that may not have their own stoves, and in any sort of organization where larger groups of people cook on a daily basis. The fact that they add further cooking capabilities to what may already be an overworked kitchen makes them perfectly suited to a variety of group living situations.
Cooker Reflection
1098 Words | 3 PagesIt uses reflection to heat up the food. Sun, the main source of light and heat energy hits the reflective pane of the cooker and reflects the light through the plastic cover and into the box cooker. The four reflective inner sides of the box reflects and concentrates the light on the pot (Aluminium can) containing the food. The black around the pot absorbs the heat and changes the light into heat to heat up the food it is containing. The heat is trapped inside due to the plastic cover which is a poor conductor of heat. The heat is also reduced by the cardboard and rolled-up newspapers. The rolled-up newspapers have air spaces between them that have air which is a poor conductor of heat. This causes the heat loss to be greatly reduced, keeping the pot and food
Electrical Engineering
1912 Words | 4 PagesBy the time the 20th century arrived, vacuum tubes were invented that could transmit weak electrical signals which led to the formation of electromagnetic waves that led to the invention of the radio broadcast system (750). These vacuum tubes were discovered to be able to transmit currents through solid material, which led to the creation of transistors in the 1960’s (750).
Microwaves
1396 Words | 3 PagesThey also popped popcorn with it. Such was the beginning of microwave cooking. The very same energy that warned the British of the German Luftwaffe invasion and that policemen employ to pinch speeding motorists, is what many of us now have in our kitchens. It's the same as what carries long distance phone calls and cablevision. Hitler's army had its own version of radar, using radio waves.
microwave oven
741 Words | 2 PagesA microwave oven is a kitchen electrical appliance that passes an electromagnetic wave with an extremely high frequency that is used to cook food. By absorbing energy from water molecules in the food, heat is produced, and therefore cooking can be performed. Besides cooking, microwave oven can be used to warm up food as well as used to defrost frozen food. Invention of microwave ovens definitely saves us a lot time and electricity.
The Impact of Nuclear Power
1546 Words | 4 PagesThe impact of nuclear power on the modern world has improved Various sectors of the economy and society .i.e. Food and Agriculture, Insect control, Food Preservation, Water Resources, Military, Medicine, Research and Industry. “In 1911 George de Hevesy conducted the first application of a radioisotope. At the time de Hevesy was a young Hungarian student working in Manchester with naturally radioactive materials. Not having much money he lived in modest accommodation and took his meals with his landlady. He began to suspect that some of the meals that appeared regularly might be made from leftovers from the preceding days or even weeks, but he could never be sure. To try and confirm his suspicions de Hevesy put a small amount of radioactive material into the remains of a meal. Several days later when the same dish was served again he used a simple radiation detection instrument - a gold leaf electroscope - to check if the food was radioactive. It was, and de Hevesy's suspicions were confirmed.
Essay On Electromagnetic Radiation
1311 Words | 3 PagesElectromagnetic radiation is the energy result that occurs when electrically charged particles travel through matter or empty space. These particles interact at a ninety degree angle with magnetic fields. The electric field is in a vertical plane, while the magnetic field is in a horizontal plane. This relationship between the electric and magnetic fields causes a disturbance, and thus a combined moving wave, to be formed from the
Technology Increases Happiness
376 Words | 1 PagesThe microwave is a prime example of technology making us happy. If we were to get rid of the microwave, many people would be angry because it is a very helpful and time saving device. If there was no microwave people would not be able to defrost the ground meat they forgot to leave out, nor would they be able to cook a hot pocket for lunch when they were short on time. Some people believe that items that are efficient make society happy.
Food And Drink In World History Essay
1672 Words | 4 Pages- More Work for Mother: The Ironies of Household Technology from the Open Hearth to the Microwave, Ruth Schwartz
More about Micro Paper
Taking A Look At The Five Stages Of Egyptian Revolution
1127 Words | 3 PagesThe Effects of Technology Warfare Due To The Attack on Pearl Harbor
1147 Words | 3 PagesSatellite Surveillance
3808 Words | 8 PagesThat's The Way The Cookie Crumbless By Dr. Joe Schwarcz
1240 Words | 3 PagesClimate Change: We Need a Carbon Tax
1182 Words | 3 PagesWw2 Innovation Essay
488 Words | 1 PagesImportance Of Electric Skillet
755 Words | 2 PagesCooker Reflection
1098 Words | 3 PagesElectrical Engineering
1912 Words | 4 PagesMicrowaves
1396 Words | 3 Pagesmicrowave oven
741 Words | 2 PagesThe Impact of Nuclear Power
1546 Words | 4 PagesEssay On Electromagnetic Radiation
1311 Words | 3 PagesTechnology Increases Happiness
376 Words | 1 PagesFood And Drink In World History Essay
1672 Words | 4 Pages