Nanometre

Discussion/Scientific Explanation: In order to successfully analyze colas, one must become familiar with a Spectrophotometer 20. In order to do this, one must figure out determine the relationship between the wavelength of light absorbed and the color of a compound. Next, one must determine a way to relate the amount of light absorbed with the concentration of the solution. After gaining knowledge about these two parts of the lab, one will be able to determine how a Spectrophotometer 20 can be helpful in determining the concentration of phosphate in colas.3 A spectrophotometer is used to obtain measurements of the amount of light that passes through a object and to measure the amount of light absorbed by a certain material. In order to do this, it is important for one to learn about a spectrophotometer. To use a spec 20, one must plug it in and allow it to heat up for a few minutes. Next, one must enter the desired wavelength and insert a blank cuvette filled with distilled water into the cell compartment.3 For Week 1, five cuvettes were given and were filled with the following: water, red food coloring, green food coloring, a mixture of red and green food coloring, and potassium permanganate. Each material was diluted with water and placed in a separate cuvette so that the spectrophotometer could accurately reveal the absorbance. The cuvette that was filled with water was used as a blank to zero out the spectrophotometer. Each cuvette was then inserted into the…

The scientific investigation of colloid sand their properties was reported by Faraday (1857) in his experiments with gold. He used the term “divided metals” to describe the material which he produced. Zsigmondy (1905)describes the formation of a red gold sol which is now understood to comprise particles in the 10 nm size range. Throughout the last century the field of colloid science has developed enormously and has been used to produce many materials including metals, oxides, organic sand…

and magnetic fields are created and move with a regular rhythm as a result of the moved particle (Lucas, 2015). They move at right angles to each other and are called photons. Photons travel at the fastest speed possible and these waves have their own characteristics such as wavelengths and frequencies (Lucas, 2015). The distance between two high points (known as peaks) or low points is known as wavelength and is measured in nanometres (nm). Frequency is the number of waves that pass a specific…

century 70 's and 80 's, with HP personal computers, Apple II computers and IBM PC and other consumer products. The industry requirements of the chip is getting higher and higher, the processing become smaller and smaller, Moore 's predicted began to come true. ARGUMENT: Not for much longer, the growth rate has been shaken. The faster the chip is, the smaller the chip will be. The smaller the chip transfer the shorter the distance. More and more circuits to be put into a smaller space, it is…

The water droplets act as prisms because the white light that enters them separate into a spectrum of colours when the light exits and this exhibits the process of dispersion. The spectrum of colours come in the order of red, orange, yellow, green, blue, indigo, and violet, shortly referred to as ROYGBIV, from top to bottom and appear in this order because of their wavelengths, which vary from 400 nm (nanometre or 10-9 m) to 700 nm as shown in the electromagnetic spectrum. In a primary rainbow,…

Evidence for and against the Davson- Danielli model of membrane structure The plasma membrane is thin and has double layers. The plasma membrane has two dark lines and a lighter central region. The two dark lines suggests the presence of the protein on either side. The lighter central region suggests the presence of phospholipids. The dark grainy appearance could be the ribosomes. Ribosomes appear as dark granules in the cytoplasm. Measured by rule: approximately 1 mm actual size 10 nm…

critical evidence in the identification of the structure of DNA. Showing that: 1. DNA was helical in nature 2. Likely a double helix with antiparallel strands of nucleotides 3. Had an alternating sugar-phosphate backbone on the outside (bases on the inside) The photograph provided essential parameters such as size of helix and structure which were used by Watson and Crick to which they based their molecular model of DNA on. [12] Franklin was good at separating the two different hydration…

By only measuring between one to one hundred nanometres and some weighing less than 10 grams makes the nano drones the smallest drones available. A nano-drone is a billion times smaller than regular drone or 〖10〗^(-9) the size. Each piece of the Nano-drones has to be designed and functioning individually before they can be pieced together to form the final product. The naked eye cannot see the drones when they are one billionth the size of their counterpart. By making the drones to look like…

colour. Firstly, it is important to say that there are laws governing the world of colour. Colour plays a huge part in our everyday life. If you stop reading right now and just look around, you will see that there is colour everywhere! Is this something that you have taken for granted? Did you know that colour is primarily activated by light? A white light is composed of various colours, which is also called the spectrum. I would not profess to be a scientist but from research it is said that…

Advanced ocular drug delivery systems are needed to optimize and control delivery of ocular therapeutics to the target sites either by increasing their penetration or by prolonging contact time of carrier with the ocular surface. Nanotechnology refers to the use of nanometre scale substances to develop new functions for these substances and then improves their properties. It provides novel opportunities to overcome the limitations of conventional drug delivery systems through the fabrication of…