Amplifier

A sine wave was generated with the function generator at 200Hz. The amplifier was turned off and the volume, or gain, was adjusted so that the tone could be heard but a level that was not loud enough to disturb the other groups in the lab. The microphone was then placed close to the speaker 3-6 inches away using the stand…

It was that time on a particular Wednesday, more specifically 2:30 pm to 4:20 pm; I sat in the lecture room at HKU preparing myself to pay full attention to Dr. Giorgio’s lecture. He stood in front of 200+ students and lectured us about “Seeing music”. As the lecture progressed to the topic about sexuality and music, he projected a YouTube video featuring the famous guitarist of the 1970s, Jimi Hendrix. The video was recorded at Miami in 1968, where Hendrix is performed one of his best-known…

Nikola Tesla was a very eccentric, inventive, and psychopathic scientist. But his mind was always full of ideas and theories that would drastically improve the way of life. He gifted us with the luxury of the Wardenclyffe, also known as the Tesla Coil; it is still used in radio technology to this day. In addition to inventing the Tesla coil he discovered alternating currents and terrestrial stationary waves. Unlike other scientists, Tesla had the belief that science should be free to everyone.…

A ray of light travels in a straight line. This is true until it passes from one medium (eg. air) into another medium (eg. glass) of a different optical density. When this happens, the ray of light changes speed causing it to bend either towards or away from the normal which is an imaginary line at 90 to the interface between two mediums. This is called refraction. How much it bends depends on the refractive indices of the two mediums which is a ratio of the speed of light in one medium…

Essay (1) Hearing aids Done by: Shaker Class: 7(C) Teacher: Nemah Figure 1 (hearing aid) If people wear hearing aids then they must have a problem with their ears, and the one major dis-advantage that led people using hearing aids is deafness, now people may ask what deafness is. Well it is a disease that might hit you when new babies are born, or sometimes when you here a loud sound like an explosion that’s in front of you, furthermore, if deafness hits you it might be either mild,…

capture and boost just my bass frequencies without boosting any rattles from the neck or bridge. Electric guitar Depending whether I used an amp or if the electric guitar was recorded via DI I changed the plug-ins that were used. Once either amplifier effects or internal plug-ins established the guitar sound I would use: - EQ: - Electric guitars would be boosted in the 100Hz area near the acoustic. Multipressor: - This was used to cut out some of the low end from the recording, leaving more…

Steve Jobs was truly an extraordinary person. He invented so many things that people could not live without today, such as the Macintosh, iPhone, and iPod, and has changed the world with his genius. Jobs revolutionized the smartphone industry, the animation industry, and everyday computers. He had his fair share of problems in life, and definitely deserved his position in Apple. This paper will be talking about how Apple started, his personal life, and his overall impact on technology today. It…

American’s vs Vietnamese’s house architecture James C. Snyder, the author of “Introduction to Architecture”, once said: “Forests were the first temples of God and in forests men grasped their first idea of architecture.” Through centuries, architecture, especially in house design, has rapidly developed and thrived in many countries. Depending on the culture and customs, house design is mostly changed to fit the circumstance of different nations. Therefore, it is obviously created huge…

Optokinetic and electromagnetic systems are widely used in laboratory settings to monitor three -dimensional (3-D) motion. These systems are accurate, but they have certain limitations like high cost, more space requirements and set–up issues. These limitations make them impractical for use at home[2].Miniature movement sensor modules[10] use accelerometers, rate gyroscopes and magnetometers to estimate 3-D orientation. These devices are more complicated and delicate to use at home by a…

Discussion of Assessment In this assessment, the directions tell the students how to answer the question and the point value of each item. Additionally, the items in this assessment are ordered from the easiest to the most difficult problem. Thus, this order gives a student confidence and lowers anxiety when completing this assessment. Since I requested that the students circle the correct answer, I provided ample space between the options to avoid confusion when grading. Furthermore, there is…