Analog VS Digital 03/11/18

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Summary: If an item is analog technology, it is most likely an analogy of something. For instance, an analog watch is an analogy of time, but just because an item is considered analog does not mean that it contains dials and pointers. In fact, something that is analog is just not digitized. Before the 20th century practically everything was analog from film cameras and recording tapes. Digital technology is a representation of a sound or picture, etc. that is transmitted into numbers so it can be shown or saved digitally. Science has had a major shift towards digital technology and items of digital technology include multimeters, thermometers, and blood pressure meters. Digital technology, more often than not, works faster and is easier to comprehend compared to analog technology. Although digital technology has its benefits, there are some instances in which analog technology would be preferred.

S&EP- Arguing from Evidence: Once my tablemates and I had completed conducting an investigation, we had to use evidence and the data we collected to argue from evidence for the following question. "Would you expect sound waves to move faster on a hot day or a cold day? Explain your reasoning." I would expect sound to travel fastest on a cold day. This is because sound travels fastest through solids because a solid's molecule are arranged and compacted in such a way that sound waves don't have to waste energy traveling through the gaps between the molecules. This would mean that sound would travel faster on a cold day, a day in which molecules are more compacted. Overall, I used the evidence i gathered during the experiment, which was that sound travels fastest through a solid, to argue from evidence with the questions that followed.

XCC-Cause and Effect: Sampling is known as both "analog to digital conversion" or "measuring at regular intervals." An example of sampling would be recording a sound. While recording a sound, the sound waves which are analog are recorded as bars with different heights or value. The bars are recorded as numbers and transmitted as sound when that song is replayed. Although it may seem quite obvious, analog sounds, pictures and more have a higher quality than digital, even if digital technology is more efficient. The reason analog technology is more accurate is a true cause and effect relationship. As information is transmitted from one place to the next bits and pieces get lost along the way. When we used the graph above and recorded its points by whole numbers, it was clear that by doing so some details were left out. This replicated what happens during sampling and reminded me of when a book is adapted into a movie (the same message gets across, but the movie is missing details.) All in all, sampling is what causes digital information to be less accurate than analog.

Multiplier: This week I was a mutant, to be more specific a learner because I tried to learn as much as possible about analog and digital technology.

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