Introduction This guest speaker name was Amanda Severson and she was originally from Washington state, but now works at Iowa State. At Iowa State, her job title is Assistant Director of Marketing & Alumni Relations at Iowa State University for the College of Business. However, she used to work for the Seattle Seahawks planning all the events for them team i.e. players, player families, kids, VIP’s, sponsors, etc. The main purpose of her presentation was to go through her power point for planning
Birth of the BBC In 1920 the first true radio station (KDKA) began regular broadcasting in Pittsburgh, Pennsylvania, in the United States. Within two years the number of stations in America reached into the hundreds, concerts were being broadcast regularly in Europe from The Hague, and in Britain, Marconi stations broadcast from Chelmsford, Essex, and then London. It was in Britain that fears over the "chaos of the ether" led to the Post Office and leading radio manufacturers setting
bring them into the real world of our senses. Sound is one constituent of music. Sound is made from repeating sound waves. The musical pitch of each note has a equivalent frequency which is measured physically in cycles per second which is known as hertz. There are various mathematical relationships between the notes played in music and their frequencies. Rhythm and music are just like numbers and mathematics. Rhythms measure time. Measure is the gap between two bar lines on the staff that represents
through gases, liquids, and elastic solids as variations of pressure and density. The loudness of a sound perceived by the ear depends on the amplitude of the sound wave and is measured in decibel, while its pitch depends on it frequency measured in hertz, (Shipman-Wilson-Higgins, 2013). We hear sound because circulating conflicts cause the eardrum to vibrate, and feelings are transferred to the acoustic nerve through the fluid and bones of the ear. For example loudness is a relative term. One sound
Variables: Dependent variable: The cup number, 1-4. Independent variable: Frequency measured in hertz (Hz). Controlled variables: Strength of the hit. Strength of the paper, background noise and stable microphone. Materials: Small plastic cup (10.5cm tall, 9.8cm diameter), Big plastic cup (13cm tall, 9.8cm diameter), Small round plastic container (6cm
Without the use of physics in the medical field today, diagnosis of problems would be challenging, to say the least. The world of medical imaging in particular has benefited greatly from the use of physics. Ultrasound is sound waves that have a frequency above human audible. (Ultrasound Physics and Instrument 111). With a shorter wavelength than audible sound, these waves can be directed into a narrow beam that is used in imaging soft tissues. As with audible sound waves, ultrasound waves must
defined by their frequency (in hertz, after Heinich Hertz , who first produced radio waves electronically), which is number of times they pass through a complete cycle per second; or by their wavelength, which is determined by the distance (by meters) that is traveled from the crest of one wave to the crest of the next. Radio frequencies are measured in units called kilohertz, megahertz, and gigahertz. (1 kilohertz = 1000 hertz : 1 megahertz = 106 hertz, 1 gigahertz = 109 hertz). All radio waves fall within
Waves Waves can be described as a transfer of energy. They can occur in one, two or three dimensions, depending on the nature of the wave and medium. Waves can be classified as either mechanical or electromagnetic. Mechanical waves require a medium and can be either transverse or longitudinal. Electromagnetic waves do not require a medium and are all transverse. Figure 1.a. shows the image of a transverse wave, figure 1.b. shows the image of an electromagnetic wave. In special circumstances standing
The purpose of this experiment was to determine whether if the sound is affected when it travels through different length pipes. The method used to do this experiment was created by using 5 different PVC pipes in the lengths of 10, 20, 30, 40, and 50 centimeters. Then, using a tuning fork, sound will be produced on one end of the PVC pipe and measured with a decimeter on the other end. This experiment was recorded using 5 trials for each independent level and the average decibels (dB) for each pipe
First of all, a sound source radiates power and this results in a sound pressure, where the sound power is the ‘cause’ and sound pressure is the ‘effect’. But still, we always have to keep in mind that sound cannot travel through vacuum, simply, because sound propagates as a wave, which creates ‘compressions’ and ‘rarefactions’, as it interacts with the particles of the medium. If there is no medium, then there are no particles and of course, there is no interaction wave-particles interaction and
I am going to explain the basic concepts of subtractive synthesis and the terminology of subtractive synthesisers with reference to acoustic principles. Envolves An envolope is a tool that helps us automate aspects of a sound, It generates a slow and evolving waveform which can be used modulate different parameters of the synthesiser like volume, pitch and timbre. The ADSR envelopes stands for attack, decay, sustain and release. The Attack of an Envelope Is the time its takes for the sound to reach
GPUs and CPUs are used in a variety of computer systems. They can be used to even view the heavens. They are what enable us to send messages halfway across the world in a matter of milliseconds. They are the reason why science is as advanced as it is today. In modern society, teenagers rely on the CPU for the internet. It is a source of entertainment, social networking, homework help, and even sometimes friendships. Many adults use the GPU and CPU to write documents, to use email, paychecks, social
organization that protects trade interests. Surely we need some kind of counterweight to protect human rights and the environment, too. -Noreena Hertz The World Trade Organization is a global organization that deals with the rules of trade between nations. Also, it is an organization that enforces number of treaties and agreements that are agreed upon by member-states. Its main agendas are to