How life is influenced by science Essay Example | Topics and Well Written Essays - 250 words

How life is influenced by science - Essay Example Landis confessed of using other drugs but not testosterone in 2010. He was also found out to be guilty of illegal blood transfusion. Floyd was then stripped of his title as the world champion of 2006. Testosterone is a steroid hormone; it is the principle male sex hormone and anabolic hormone. This hormone plays a major role in the development of male reproductive tissues, bone mass and body growth . Its anabolic effects are growth of muscle mass and strength and the simulation of bone maturation and linear growth. Testosterone levels in the body should not exceed the normal level, this is the basis of the testosterone test (Webmed). This test tends to find out the reason for higher performance than usual especially to the athletes who are suspected to be using synthetic testosterone. This was the test performed on Floyd to confirm the allegations. At the end of the day we learn that science has a great potential of being used and at the same time revealing whether it is being misused or not. It is better if we make good use of scientific facts for the betterment of the sports but without taking the advantage of it to pretend to be what we are

Instrumentation principles for media technology microphone technology Essay

Instrumentation principles for media technology microphone technology - Essay Example According to Snoman, a microphone, casually referred to as mic or mike, is a device that â€Å"converts sound into an electrical current that is then transformed into an audio signal at the end of the chain† (152). How well the sound gets captured by the microphone and un-obstructively reproduced and transmitted to the audience, and how well the microphone meets the live or studio requirements of sound, is the main concern. There is no doubt that when you go for a high quality microphone, you are ultimately ensuring excellence of the sound; however, every microphone has its own tonal quality that is different from other microphones. Thus, choosing the right microphone is what requires good sensible knowledge about the microphone technology and some basic tips and tricks of utilizing this technology. â€Å"Microphones are a key factor in achieving high quality recordings and sound reproduction†, says Peterson. The first microphone ever developed consisted of a metal diaphragm connected to a needle which was further connected to a metal foil. When the diaphragm would catch differences in air pressure, it would cause the needle to move which would scratch out specific patterns onto the metal foil. When these scratches were later run by the needle, they would cause the diaphragm to move which reproduced the recorded sound (How Stuff Works). The latest microphone technology, however sophisticated, works on the same principle that is, converting air pressure waves into electrical current. Whatever the type of the microphone is, all have one thing is common. That is the diaphragm which is actually a thin paper or a thin piece of aluminum or plastic, located in the head of a typical microphone, and vibrates when it catches sound waves produced by differences in air pressure (see Fig. 1). Vibrations in this diaphragm cause vibrations in other modules of the microphone as well