What is Static Electricity? By Ron Kurtus (revised 23 January 2009) Static electricity is the buildup of electrical charges on the surface of some object or material. Static electricity is usually created when materials are pulled apart or rubbed together, causing positive (+) charges to collect on one material and negative (−) charges on the other surface. Results from static electricity may be sparks, shocks or materials clinging together. Use of static electricity • Photocopy: Copy machines use static to make ink get attracted to the areas where we need the information copied. It uses the charges to apply the ink only in the areas where the paper to be copied is darker and not where the paper is white, this process is called xerography. • Car painting: To make sure a car's paint is uniform and that it will resist the high speeds and weather to protect the car's metal interior, it is applied with a static charge. The metal body of the car is submerged in a substance that charges it positively, and the paint is charged negatively with the paint sprayer. How do you measure ele...
Ewald Georg von Kleist is a German scientist who created the capacitor in November of 1745. Regrettably, Kleist did not have the proper paper work to claim in the records that the design of the capacitor was his idea. Many months later, a Dutch professor named Pieter van Musschenbroek created the Leyden jar, the world’s first capacitor (on record). It was a simple jar that was half filled with water and metal above it. A metal wire was connected to it and that wire released charges. Benjamin Franklin created his own version of the Leyden jar, the flat capacitor. This was the same experiment for the more part, but it had a flat piece of glass inside of the jar. Michael Faraday was the first scientist to apply this concept to transport electric power over a large distance. Faraday created the unit of measurement for a capacitor, called Farad.
These three sources "Energy Story", "Conducting Solutions", and a video clip "Hands-On Science" share explanations, demonstrations, and descriptions on science experiments to accomplish its purpose. In "Energy Story," it explains the use of electricity people use in their homes, and what makes it. In the video "Hands-On Science" by AnnMarie Thomas, it shows how to make homemade playdough and compare it to store brand playdough. In "Conducting Solutions" by Rodney Schreiner, it shows how certain ions have positive and negative charges. These three sources based on science show us different experiment and how to accomplish them.
Dielectric study of solid polymer electrolytes is an important technique for understanding the various relaxation processes, which are associated with the ion motion. The frequency dependent dielectric constant at room temperature for the PEO with different wt% of KCl is shown in Figure 3.14(a). It is evident from the figure that the dielectric constants are significantly high in the low frequency region due to electrode polarization and space charge effects and it obeys the non-Debye type behaviour [53, 54].
This paper is a discussion of the role played by the ideals of the Enlightenment in the invention and assessment of artifacts like the electric battery. The first electric battery was built in 1799 by Alessandro Volta, who was both a natural philosopher and an artisan-like inventor of intriguing machines. I will show that the story of Volta and the battery contains three plots, each characterized by its own pace and logic. One is the story of natural philosophy, a second is the story of artifacts like the battery, and the third is the story of the loose, long-term values used to assess achievement and reward within and outside expert communities. An analysis of the three plots reveals that late eighteenth-century natural philosophers, despite their frequent celebration of 'useful knowledge,' were not fully prepared to accept the philosophical dignity of artifacts stemming from laboratory practice. Their hesitation was the consequence of a hierarchy of ranks and ascribed competence that was well established within the expert community. In order to make artifacts stemming from laboratory practice fully acceptable within the domain of natural philosophy, some important changes had yet to occur. Still, the case overwhelmingly shows that artifacts rightly belong to the long and varied list of items that make up the legacy of the Enlightenment.
Lightning is an interesting form in the earth's atmosphere. People will always have their own beliefs and theories of how lightning forms and why it approaches land and people the way it does. However, there is much research that explains how lightening is formed and why it happens when it does.
Metal finishing is the critical part and step in preparing the metal for painting. It happens between the bumping stage when the metal is pried, hammered, pulled, and pushed into shape and the filling stage, when the small defects and details in metal finished surfaces are filled before being painted. Any type of finish is applied over your work weather the it be solvent, powder coated, or plastic it will have an index of reflection and ...
Finding and hiring an electrician to do or fix the electrical wiring in your home is not as simple as flipping through the phone book. Many times, homeowners rush into hiring an electrician without doing any background check. They want to get started as soon as possible, and in the process they end up wasting money on an electrician who do shoddy work or charge way too much. If you want an electrician who is good and dependable, not to mention charge a competitive price, you will need to spend some time doing your research. So how exactly do you pick the right electrician? Below are some things you can keep in mind when you are looking for a good electrician.
“I Sing the Body Electric” is one of twelve poems that comprised the 1855 first edition of Walt Whitman’s self-published masterpiece, Leaves of Grass. Like other poems, especially “Song of Myself,” it is a celebration of life. It is hard to believe this classic was written during the Civil War era. A time historically riddled with slavery and injustice, of mass death and discord, as well as the expansion of industrialization, the movement out west and population growth. This 19th century classic defines an age-old problem. In brief, the human body is too often disrespected, abused, underappreciated, or taken for granted. According to Whitman, "If anything is sacred the human body is sacred," (Routledge, section 8), and “if the body were not the soul, what is the soul?” (Routledge, section 1). An analysis of “I Sing the Body Electric” assists us in recognizing our eternal state of existence and well-being; a state only conceived through a unified consciousness of the human body and soul. In it Whitman poetically expresses his appreciation and respect for the intricate, spiritual unification between the human body and the soul.
Electrolysis is the only permanent hair removal methods that can help you achieve and maintain a smooth, hair-free beautiful aspects. This is a convenient, low-Charge strategy to refresh your image, increase your confidence and enhance Your enjoyment of life everyday.
In some Greek experiments, objects attracted each other after rubbing. Other experiments produced objects that pushed away, or repelled, each other. The evidence showed that electric force made matter either attract or repel other matter.
A battery is a device that converts energy into electricity by storing electrical energy thru chemical reactions. In a battery, there are three major components [4]. The first component of a battery is a terminal called anode which is an electrode through which electric current flows into [2]. The second component of a battery is a terminal is called cathode which is an electrode through which electric current flows out [2]. These two terminals can be found at each end of a battery. The third component of a battery is called the electrolyte which is an ionic compound(s) that are used to separate these two terminals, send electrons and used to neutralize charges that build-up in the chemical reaction processes [2].
Humans these days take electricity for granted. We don’t truly understand what life was like without it. Most young adults will tell you their life does not depend on electricity, but they aren’t fooling anyone. They all know that their life depends on electricity; whether it’s television, their phone, Google, or the lights in their house. We need to stop taking those things for granted and give credit where credit is due. That is why I chose to write about the scientists who contributed to the discovery of electricity, which then helped modern scientists fuel the electricity phenomenons we now have today.
The phenomenon called electromagnetic induction was first noticed and investigated by Michael Faraday, in 1831. Electromagnetic induction is the production of an electromotive force (emf) in a conductor as a result of a changing magnetic field about the conductor and is a very important concept. Faraday discovered that, whenever the magnetic field about an electromagnet was made to grow and collapse by closing and opening the electric circuit of which it was a part, an electric current could be detected in a separate conductor nearby. Faraday also investigated the possibility that a current could be produced by a magnetic field being placed near a coiled wire. Just placing the magnet near the wire could not produce a current. Faraday discovered that a current could be produced in this situation only if the magnet had some velocity. The magnet could be moved in either a positive or negative direction but had to be in motion to produce any current in the wire. The current in the coil is called an induced current, because the current is brought about (or “induced”) by a changing magnetic field (Cutnell and Johnson 705). The induced current is sustained by an emf. Since a source of emf is always needed to produce a current, the coil itself behaves as if it were a source of emf. The emf is known as an induced emf. Thus, a changing magnetic field induces an emf in the coil, and the emf leads to an induced current (705). He also found that moving a conductor near a stationary permanent magnet caused a current to flow in the wire as long as it was moving as in the magnet and coiled wire set-up.
The report I am going to write about is to do with electrical safety devices and safety practices which contribute in reducing and eliminate specific risks. The workplace I have chosen to write about is electricians in power stations. The report I am going to write is going to show a clear understanding of electrical safety devices and the improvements of electrical safety devices.
The two main ways printers work is either impact or nonimpact. Impact printers have a device that touches the paper and then creates an image while nonimpact does not touch the paper. The type we use most often in our homes is the nonimpact printers; these include the ink-jet and laser printers. The ink-jet printer drops ink from a nozzle onto the paper. The laser printer is a bit more complicated because it uses toner, static electricity, and heat to get the ink where you want it on the paper. This is nice though because it decreases the drying time that may cause ink to smear, especially when you are printing pictures. (Tyson)