Alternating current

key, a battery, wire and a line of poles between stations for the receiver. Charles Wheatstone and his peer developed a telegraph system with “five magnetic needles that could be pointed around a panel of letters and numbers by using an electric current,”…

After reading the chapter and the PowerPoint presentation, I would say that there was one man who was an extraordinary talent. He have created for us the electricity, light bulbs, and etc., and his name is Thomas Alva Edison and he saw a future and Edison left a remarkable impact on the American society and worldwide, he changed a lot of inventing this technology we have been for years now. Also, he was the first Americans to invent something which wasn’t done before. There are many things which…

Isambard Kingdom Brunel is a well know English engineer from the later 1800’s and is more known for what he has done than who he is. Isambard’s father is Sir Marc Isambard Brunel and is a French civil engineer who at the time Isambard was born, he did work in block-making machinery. The ironic thing about Isambard is that he is an English engineer instead of a French engineer like his father. This creates multiple differences between father and son; one being that Marc is a civil engineer that…

The process of crossing over occurs during which of the following? 
A. diakinesis 
B. diplotene 
C. pachytene 
D. zygotene 
E. leptotene 
Bloom's Level: 1. Remember
Learning Outcome: 02.04.01 List and describe the phases of meiosis.
Section: 02.04
Topic: Meiosis
  30. The bivalent structure forms during which of the following? 
A. leptotene 
B. zygotene 
C. pachytene 
D. diplotene 
E. diakinesis 
Bloom's Level: 1. Remember
Learning Outcome: 02.04.01 List and describe the phases…

Elon Musk is, from my point of view, one of the most important character in my generation. He created Tesla, a company that develops electrics cars, Paypal, a intelligent and useful way to pay by internet. He also created Zip2, a program that he define as a primitive Google Maps that meets Yelp. The most important of all his projects is SpaceX. This company/project is suppose one day to help the human race to move on Mars. He also developed SolarCity, a company that produce solar panels so they…

Modified Circuit Modify the circuit to correct this problem by calculating the following aspects of the circuit to give a power factor of 0.9 or better: New value of capacitance Total impedance Supply current Phase angle The quantity and type of power consumed by the…

Specific Purpose: To show the audience that the Thomas Edison we learned in school was actually a lie. Introduction: Attention: Thomas Edison was a great inventor, but did you know he did not have a formal education? According to an article written by US National Parks Service entitled Edison Biography on March 14th, states that Edison was home schooled and his mother taught him how to read (National Parks Service). Even without higher education he became one of the most successful people in…

Rotor and touchdown bearing models Fig. 1 features the case study of the high-speed rotor. The photo was taken after manufacturing of the electric motor part, when the rotor was carried to the laboratory for an experimental modal analysis. During normal operation, the rotor is supported by AMBs. In the dropdown event, the rotor is in contact with touchdown bearings at both ends of the rotor. Fig. 1. Rotor under investigation. In this work, the finite element model of the rotor employs…

When To Call An Emergency Electrician When it comes to electrical issues, you never want to wait to get them fixed. Even if an electrical issue seems harmless on the surface, by letting the issue go unfixed you are actually putting you and your family at risk (and possibly other people if the issue results in an electrical fire that spreads). But, what exactly constitutes an electrical emergency? Realistically, you should always get an electrical issue looked at ASAP no matter how small, but…

Did you know that Alexander Graham Bell invented the telephone? Alexander was constantly working on scientific experiments and he became a famous man. Now, hundreds of thousands people can communicate through phones. Bell also worked on a school to help the deaf to enroll. His invention helps life today because we can now communicate through technology called the telephone. Alexander’s Father established a school for the deaf to learn and Alexander also helped the deaf learn. He also inspired…