Engineering Page 4

According to the phlogiston theory, propounded in the 17th century, every combustible substance consisted of a hypothetical principle of fire known as phlogiston, which was liberated through burning, and a residue. The word phlogiston was first used early in the 18th century by the German chemist Georg Ernst Stahl. Stahl declared that the rusting of…

The Hoover Dam is one of Americas greatest civil engineering marvels (Hernan 22) and has become a magnet to those fascinated by human ingenuity at its best (Haussler 30). With its enormous size and construction during the Great Depression, it was an interesting topic to me. I would like to major in civil engineering and,…

To navigate in an unknown environment, a mobile robot needs to build a map of the environment and localize itself in the map at the same time. The process addressing this dual problem is called Simultaneous Localization wand Mapping (SLAM). In an outdoor environment, this can generally be solved by a GPS which provides a…

There are three activities that are crucial in an information system that produce information that an organization requires to make informed decisions, control operations, analyze problems and create new products and services. They are input, processing and outputs. Inputs: captures or collects raw data from within the organization or from external environment Processing: converts the…

Generally ACB is used as an upstream device to feed electrical supply to connected load. General practice ACB is mount inside the panel which is connected to other equipments with the help of bus bars. During the normal operation rated amount of load current always shows through the circuit breaker, Current growing through the current…

Jeff Preston Bezos was born in January 12 1964 in Albuquerque New Mexico. His mother Jacklyn Gise Jorgensen was just 17 when Jeff was born and his biological father Ted Jorgensen. Ted Jacklyn and Ted Jorgensen were just married for a short period of time before they divorced when Jeff was about a year old….

Loudspeakers work when fluctuating electric currents flow through the solenoid (coiled wire) which connects the circuit. This current which has now been created in the coil creates a magnetic field, this then interacts with the permanent magnet which attracts and repels and from there causes the cone of the speaker, also known as the diaphragm,…

The making of automobiles started in the year 1770. In 1770 a man named Nicholas Joseph Cungnot from France built a large steam-driven vehicle. The vehicle didnt last long because the vehicle could only be driven for 12 to 15 minutes before running out of steam and the vehicle was too heavy and had poor…

Back in the days of the 1850’s through 1900’s the invention of the elevator was a big step for civilization. The people went from old fashion stairs to for them a minute ride of luxury and realization (opposed to climbing stairs). An American inventor named Elisha Graves Otis was the first person to invent the…

A key component enabling smart-grid power analytics is the integrator, which detects the 50- or 60-Hz rms-current from a current sensor device, such as a Rogowski coil. The advantage of a Rogowski coil is the current can be measured without having to make an incision onto the power cable, as it is normally being done…