Introduction: I chose this topic; because I thought it would be fun to make a four-way switch that turns on the same light. I got the idea to make one when I went online to search for the perfect project idea. I found information about a three way light switch and decided that this is what I want to do, but to make it more difficult I decided to create a four way light switch instead. It sounds like the perfect experiment to try. I felt that if I did this project I would learn more about electricity and the way it works. What is a four way light switch? A four way light switch is an electric switch that uses electricity to power a light bulb that can be turned on by four different places and not just one or two. The great thing about a four way light switch is that there can be more then one way to turn on one single light. In order to achieve the perfect four ways light switch the four-way switch must be in the center of two three light way switches in order for the whole proses to work. A hot wire or wire of 120 volts will connect from a battery to the light bulb. A wire that is neutral will also be connected from the battery to the light bulb. The third wire can’t be neutral or 120 volts (hot wire) and will just float near the 120-volt wire. The third wire that is neither neutral or 120 volts, and 120 volt wire will connect when the switches are turned on and will produce the light. When the light will be turned on the switches should be one circuit in order for the light bulb to turn on and the electrons to travel through the circuit. The switches must be either up or down at the same time in order for the electricity to flow. If one of the switches is up and the other is down the light will not work. If one o...
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...ire. When the switch in the center of the hot wire is crossed it must touch both the blue and hot wire. To make the cross switch work you must make sure that when you cross the switch in the center of the hot wire and cross the switch in the center of the blue wire that they both are touching both wires, only then will the four-way switch work. The switches must be made in a way that they make a complete circuit. The electric cells in the battery will cause the electrons to then travel from the negatively charged electricity to power the light. Once it has touched the filament witch is a metal it will conduct electricity. The melting point of 6,580 degrees F happens inside the light bulb when it is turned on. The electricity then continues to travel through the neutral wire so that the energy can go back to the power source or battery and complete the circuit.
So he had to face the fact he had to invent something that can handle so much energy without that much copper and wire.so that was suitable for small houses to use the light bulb. As many times they took to make the light bulb was tested more than 3,000 times. He also had tested many metals to make the light bulb. He also tested more than 4,000 plants to handle the filament material. While he had tried to figure that out he had extra help with a group of scientists he was working with for 40 years to make the light bulb
...n on a light switch, press the power button on your computer, or start your car, you are using technology that was invented and pioneered by Nikola Tesla.
Conduction, convection and radiation are the three methods through which heat can be transferred from one place to another. The (www.hyperphysics.com) first method is the conduction through which heat can be transferred from one object to another object. This process is defined as the heat is transmitted from one to another by the interaction of the atoms and the molecules. The atoms and the molecules of the body are physically attached to each other and one part of the body is at higher temperature to the other part or the body, the heat begins to transfer. A simple experiment through which conduction can be understood easily is as follows. First of all, take a metallic rod of any length. Hold the rod in the hand or at any stand made up of the insulator so that the heat does not transfer to the stand. Heat up the one end of the rod with the help of the spirit lamp. After sometime, touch the other end of the end, the other end of the becomes heated too and the temperature of the other end of the rod has also increased. Although only one end of the rod is heated with the spirit lamp, but the other end of the rod has also been heated. This is represents that the heat has been transferred from one end of the rod to the other end of the rod without heating it from the other end. So, the transformation of the heat is taking place. This process is called the conduction. Conduction is a process which is lead by the free electrons. As the conduction happens occurs only in the metallic materials, the reason for it is that the metals has the free electrons and they can move freely from one part of the body to another part of the body. These electrons are not bounded by the nucleus so, they can move easily. And when the temperature of the ...
The demonstration of the Incandescent light bulb was held in downtown New York City, New York at financier J.P Morgan’s office. The incandescent light bulb had instantly spread throughout the majority of the American homes and offices. The first incandescent light bulb used a carbon base inside a glass bulb until it became hot to produce a glow, (CITE). Many of the first designs were burning up quickly due to a poor vacuum design. Gas companies once dominated the industry were having a difficult time promoting the arc lamp due to the new invention of the Incandescent light bulb, (CITE). By the year 1892, the distribution of electric power replaced the gas setup, which had formally set up throughout the cities and the majority of the
F Another wire, or exact same properties (Nickel Chrome, thickness 34). mm and length 30cm) was placed on top of the previous wire, in the same position, both straight and flat. F. The power was turned on again and the same procedure was repeated. recording current and voltage at three points on the variable. resistor.
Since its adoption in the late 19th century, Edison’s incandescent light bulb has seen remarkably little change and development. In comparison to other technologies, its growth has been almost non-existent. In fact, today’s bulbs operate under the very same principle that Edison’s did: incandescence. Incandescence is the basic principle that heated objects, like the tungsten filament of a light bulb, radiate light. While it is often the simplest solution that is the most successful, it is not always likely to be the most efficient. Traditional incandescent bulbs waste nearly all the energy they consume as heat, leaving very little to be used in the production of light making them one of the least efficient technologies we use every day. Despite this, incandescent bulbs dominate residential lighting with a large role in commercial lighting as well. Americans have always prided themselves on being leaders of technologic advancements and are responsible for some very impressive technology. The semiconductor industry for example, has grown over a million times more efficient in just the past fifty years [CITE]. This reputation makes it surprising that an American technology so radical at the time of its development and so widely adopted in our society has remained so static in time. This paper’s focus is the attributes of this technology that have resulted in such stagnant growth and to investigate other technologies, specifically compact fluorescent lights (CFLs) and light emitting diodes (LEDs), which could finally bring this market into the 21st century. Additionally, it looks at policies implemented by the government whose intention is to speed up the adoption of this technology and what the growth of this industry might look lik...
You walk into a dark room and flip a switch; suddenly, the room is no longer dark. Have you ever wondered how the electricity in your business or house works? Electricians study the ways to install the wiring and electrify indoor and outdoor spaces for comfort and safety. While most people take, the electricity we use for granted, electricians must know and ensure every detail is perfect. Careers in electricity require dedicated professionals who spend many hours of schooling learning about how to safely create lighted spaces and outlets for electrical components and usage. Electricians must be certified and educated in the safety and techniques of electricity.
Photonics Lab Introduction In the world of communication, lasers can be very helpful in transporting a variety of information across the planet. In this experiment, we decided to advance our knowledge about lasers and perform more tedious activities with them. Instead of shooting lasers through a gelatin substance and reading angles in which they reflect, we were going to step it up a bit. This time, our final goal was to be able to verbally communicate through space using a laser. Photonics is described as science and technology based on and concerned with the flow of electrons.
Direct current only flows in one direction in a circuit. Because the polarity of a direct current voltage source is always the same the flow of current never changes direction. Batteries are one of the more common direct current voltage sources. Batteries are good because their voltage is fixed as well as their polarity. Direct current dose not always need to a constant voltage but it must always stay traveling in the same direction. There are such direct currents called varying and pulsating that change value but not direction.
Edison is most famous for the development of the first electric light bulb. Like I said Edison was born into a time where America wasn’t very developed. He was born, and electricity had not been developed. But thanks to Edison when he had passed away on October 18, 1931 whole cities were lit up in electricity. For electricity, much of the credit goes to Edison.
Traffic lights are signaling devices located at road intersections and pedestrian crossings, they are now part of our everyday life. Before traffic lights were invented, policeman would control traffic, but accidents would still occur frequently. This is when J.P Knight took action in 1868 and made the first traffic light. It was installed outside the British Houses Of Parliament but didn’t last long since it exploded in 1869 due to a gas leak. It was only in 1912 that a man named Lester Wire created an electrical traffic light that is still used today. There are three main types of traffic lights: fixed timed, semi actuated and fully actuated. Fixed time traffic light are light where “signals change according to a pre-set timing. The signals will cycle all the time even if there is no vehicle or pedestrian demand.” (a). In semi actuated signals vehicle detectors and push buttons are installed on streets and roads. The traffic signals will remain green until either a group of vehicles is detected or a pedestrian pushes a button. Lastly in fully actuated lights “ signals are programmed to change with minimum green times depending on the traffic and pedestrian demand on all approaches. The signals will change based on the demand from each approach.” (b).
Thomas Alva Edison is a very well-known American inventor. He invented about 1093 devices that influenced us greatly, such as light bulb, microphone, telephone receiver, universal stock ticker, phonograph, kinetoscope (used to view moving pictures), storage battery, electric pen, and mimeograph. Edison also improved many other existing devices as well. In the period from 1878 to 1880, Thomas Edison began serious research into developing a practical incandescent lamp. Edison and his associates worked on at least three thousand different theories to develop an efficient incandescent lamp. In 1878, Edison built his first high resistance incandescent electric light. Incandescent lamps make light by using electricity to heat a thin strip of material (called a filament) until it gets hot enough to glow. Many inventors had tried to perfect incandescent lamps to "sub-divide" electric light or make it smaller and weaker than it was in the existing arc lamps, which were too bright to be used for small spaces such as the rooms of a house.Edison's lamp would consist of a filament ho...
Many of people came to see the showcase of the phonograph. In 1878, Thomas Edison starts expanding his inventions factory, and also builds a shopping store behind the laboratory. So he could sell his inventions to the public. Later Thomas Edison starts continuous to his other inventions. He starts to investigation how to create a light bulb that can stay longer time. Before Thomas Edison start making the light bulb, there have other inventor was working on it, but no one can let the light bulb work longer. Eventually, on October 21, 1879, Thomas Edison’s light bulbs can continuous work forty hours. Thomas Edison and his team try to use the incandescent light bulb in the laboratory and his home. In 1880, Thomas Edison believes the incandescent bulbs can able to produce and sell it to the public. Also he builds the Edison Electric Light Company to find way to use electricity to light the incandescent bulbs. In 1882, Thomas Edison uses his incandescent bulb in all the office building and houses on the Pearl Street. Many people came to the Pearl Street see the all of the building and houses is light with electricity. This became a great achievement in Thomas Edison’s life. Also Thomas Edison became a rich and famous people. Many of business and investors want to invest Thomas Edison’s
Upon opening the switch the power is cut to the coil, given that the earth magnetic field generates a torque on the aligned, spinning hydrogen nuclei, they begin to precess around the direction of the earth total field.As the protons precess,the precession produces a time varying magnetic field which induces a small alternating current in the coil such that the frequency of precession of the nuclei is equal to the frequency of the AC current.The proton precession measures the frequency of the oscillatin field and since its equal to the precession frequency of the protons it can be used to determine the strength of the external field.