Silicon dioxide

During Steve Jobs speech to the graduating students at Stanford Jobs uses a lot of examples throughout his lifetime and tries to relate as much as possible to the students through stories about his lifetime and how his companies came about. Jobs uses different forms of Ethos, Pathos, and also Logos in his speech to Stanford. The issue is does Jobs fit the criteria to actually be speaking to graduating students about life challenges and his college experience. Here I’m going to go over the rather…

Steve Jobs turned out to be very successful even though he wasn’t a college graduate. Steve Jobs’ Stanford Commencement speech is considered to be very effective and moving, because of his use of his rhetorical devices. Steve Jobs shares three stories of his past to play upon his rhetorical strategies. While speaking to the Stanford graduates who are ready to start a new chapter in their life; Jobs uses love, loss, discovery, death and adversity to persuade them not to give up as they continue…

A solar panel is deigned to absorb light energy from the sun. From there, the energy is converted into an electrical current and can produce electricity or heat. As promising as solar energy is, are solar panels an efficient means of producing electricity and does solar energy benefit the greater population? To understand the efficiency of a solar panel, there is essential information on solar energy, that once understood, helps to answer whether solar panels are energy efficient. First, what…

Later letters, including what my father wrote when he was dying and the entries my mother made in her diaries gave all of us a broader understanding of, and deeper appreciation for, both of them. For this reason I decided to make The Peopling of Silicon Valley, 1940 to the Present Day an oral history. I wanted the people who lived the events to tell their stories. Although I lived a lot of the history of the Valley during the subject period, I realized the book would be better if I allowed a…

Now that we know the whole story, let’s look at both sides of the coin. Sandra Bland was driving to her new job in Texas on July 10th, 2015. She was pulled over by state trooper Brian Encinia because of an “erratic lane change” on the busy highways of Texas in the middle of the day. In the video, yes there is a video, Officer Brian walks over to her car and tells her what he is pulling her over for, and asks for her license and registration. Everything is going fine and Sandra is cooperating…

The Center of Innovation 7.5 million people, thousands of technology startups, infinite possibilities; The San Francisco Bay Area is one that cannot compare to any other area in the world. Not less than one year ago, my family and I traveled to the beautiful city of San Francisco. Originally this trip was so we could spend time with my aunt who lives in the area. Although that was fun, my trip had a much deeper meaning to me. The city made a huge impression on me. I learned that I would like to…

energy to be stored even as it’s during night time or a cloudy day. Solar energy is from solar photovoltaic cells that have a negative and positive charge on the silicon beneath the slice of glass and as the photons of sunlight are collected by these cells, the electrons are separated which they are attracted to one side of the silicon, creating an electric voltage (“NW Wind & Solar”, n.d). Solar energy compared to wind energy is much more effective for use, whereas wind energy has a large…

This is the most harmful part to the entire process of solar energy. Dustin Mulvaney, a science advisor to the Silicon Valley Toxics Coalition, states potent gases and other harmful materials present a significant occupational risk in the factories during production. To start, silica is found in quartz or sand, which is the second most abundant element in the earth’s…

ore is Iron oxide. The oxygen must be removed from iron oxide, leaving behind the iron. Iron oxide reacts with carbon and it displaces the iron from iron oxide. Iron oxide + Carbon→ Iron + Carbon dioxide 2Fe2O3 + 3C→ 4Fe + 3CO2 Iron oxide is reduced to iron and the carbon is oxidised to carbon dioxide. The blast furnace is so hot that carbon monoxide can also be used to reduce the iron oxide instead of…

Silicosis: caused by inhaling silica dust, Silicosis is a fibrotic lung disease due to the inhalation of respirable crystalline silicon dioxide (silica) (Leung et al., 2012), the most common quartz, in occupational settings such as tunneling, mining, sandblasting, and quarrying. Silicosis often develops progressively and irreversibly over decades even after exposure has ceased. Silicosis…