Graphite

She laid the groundwork for modern virology through her work on the tobacco virus and polio (Bagley, 2013). Additionally, her work on coal and graphite, is still being quoted today (“Rosalind Franklin”, n.d). Most importantly, Franklin perfected x-ray crystallography and produced the famous “photograph 51” that proved the helical structure of DNA (Maddox, 2003). To conclude this nomination, I believe…

Wiper blades are devices used to remove rain, debris, snow, and ice from the windscreen. They are also known as windshield wipers or windscreen wipers. They are used by most driven machines including motor vehicles, watercraft, train locomotives and aircraft. They are usually a legal requirement for most of these crafts. A wiper usually consists of metal arm balanced at one end and a long rubber blade attached to the other end. The metal arm is mostly powered by electric motor. The rubber blade…

we could not make a single step. Friction has led to the discoveries of shoes with extra grip to help us not slip. Similarly, pens and pencils have been improved to maximise the benefits of friction with comfortable grip to hold the pen or pencil, graphite lead now have new shades and pen tips usually have a roller ball to make it easier to write, decreasing the amount of friction. If there was no drag, swimming would not be a competitive sport as everyone could do it. Without the competition,…

chills against your skin like someone was behind you like you weren’t the only one there although it had been abandoned for decades, strange unexplainable happenings that have no explanation? The colours of the ghostly house were mainly jet black and graphite grey. Dull boring colours, there were no bright colours to be seen. It felt like someone was watching me; the floor boards around me were creaking! I could hear colossal echoing footsteps neighbouring me everywhere I went. I heard the howl…

First, the Penn Senator Conventional Saltwater Reel. The reel is designed in a lightweight graphite-material framework that ensures durability and comfort of use. The reel is also armed with a machine-made and anodized-aluminum material with stainless steel rings. The highly durable bronze alloy comprises the main gear with two stainless steel…

For this second assignment, I have chosen to talk about dry media and wet media art works. “The dry media, which include metalpoint, chalk, charcoal, graphite, and pastel, consist of coloring agents, or pigments, that are sometimes ground or mixed with substances that hold the pigment together, called binders.”(p.165) I selected the composition “Study of a Woman's Head or the Angel of the Vergine delle Rocce, 1473” by Leonardo da Vinci. This is merely just a sketch of a woman's head from the…

The progress of nanotechnology has encouraged scientists to continuously pursue new electrode materials for constructing an enhanced electrochemical platform for sensing. In this study, hydrothermally-assisted reduced graphene oxide (TRGO) was synthesized using an environment friendly reducing agent in optimum time to easily exfoliate coating solution and substitute on the microelectrode. Series connected distributed sensing electrodes were fabricated and patterned with TRGO added platinum…

Microstructural characterization The Roman spectrum of Cr-DLC coating was shown in Fig.1. The overlapped D peak and G peaks located at 1363cm-1 and 1564cm-1 were obtained after fitted with Gaussian curves, respectively. It’s well known that the content of the graphite crystal was closely related to the value of ID/IG [22]. And the ratio of intensity between D peak and G peak (ID/IG) of Cr-DLC coating could be calculated by the fitted curve. The value of ID/IG was about 1.98, which meant the…

2.1 Nanocomposite and nanofiller Composite is the combination of two or more different materials that are mixed together in order to bring out the best properties of both material. A nanocomposite is the composite which exhibit at least one dimension of the nanoparticle size material [17]. The nanoparticle size is mainly used as the disperse particle system to enhance or improve the properties of the composite material such as strength, conductivity and wear resistance. The main reason for…

first responders to deal with the hazardous materials present quickly and safely.”, (FEMA, 2013, Unit 2, P.2-1). For example, the Materials Safety Data Sheet (MSDS) provides “recommended extinguishing media (water, foam, dry chemical, carbon dioxide, graphite, etc.) for fire.” (FEMA, 2013, unit 3, P. 4), in case of a chemical attack so that responders can determine quickly how to deal with identified active agent. Similarly in the case of an attack where unknown agents might be released, such as…