Discussion Week one- During the first week of this experiment we used a Spectronic 20 to measure the light absorbance and the percent of light transmitted. A Spectronic 20 is a machine that measures the amount of light that passes through the solution (Lewiston, 2014). For week one the goal of the experiment was to find the analytical for KMnO4. To work the Spectronic 20, it first must be turned on and allowed time to warm up. On the menu screen we selected to record percent of light transmitted to be displayed.
After 30 minutes, tubes were taken out and kept in ice-cold water for 30 minutes. These were centrifuged at 3000 rpm for 15 minutes. The absorbance of the supernatant was read at 540 nm at room temperature against appropriate blank. Blank consist of 1 ml distilled water, 0.5 ml of 30% TCA, and 0.5 ml of 0.8% TBA. TBARS values were expressed as n moles malonaldehyde (MDA)/mg protein.
This equation shows the normal body temperature of 37.5°C and demonstrates that the body to losing 1.5°C per hour until the temperature of the body and the external environment are at the same temperature. The most common ways of taking the temperature of the deceased is to either use a rectal thermometer or to take a reading from the liver, which can achieve a more accurate internal temperature. Rigor Mortis is also a quite accurate way of measuring the time of death. It usually occurs in smaller muscles first and then makes its way through the body. This process starts usually two hours after death and can last for twenty to thirty hours.
We brought it forth from the night of the ages” (Rand 59). This light represents the abstract idea of knowledge. It is brought forth from the “night of the ages,” in which the lack of light symbolizes ignorance. Equality is able to harness his knowledge and use it to create something significant. He realizes that his invention is capable of doing many things: “We can light a tunnel and the city, all the cities of the world and nothing save metal and wires” (Rand 60).
The data collection should continue until the graph reaches a absolute minimum. Using the statistics option in the LabQuest probe, a change in temperature will be calculated for each trial. Two trials for each liquid will be run. Molar mass, boiling point will be found using outside
The 2.5 mL of Albumin Standard (200µg/mL) was distributed among test tubes 0 through 5 (0.00, 0.25, 0.50, 0.75, 1.00, and 0.00 mL respectively). Then, 1.00, 0.75, 0.50, 0.25, 0.00, and 0.00 mL of water was added to test tubes 0 through 5 respectively. One mL of the unknown was added only to test tube #5. Four mL of the biuret reagent was added to each test tube and allowed to stand for 30 minutes at room temperature. Then, the absorbance was determined for each test tube at 545 nm after tube 0 was used to tare the colorimeter to zero absorbance.
Here IB and BG are internal Bremsstrahlung and background respectively. The Perspex was then placed below the target compound and the spectrum IB+BG was recorded for the same time. The difference in the two spectra gives Raw EB spectrum. Data were accumulated each time for 12 hours. From several sets of data recorded, the average of the six sets of data in the energy region 200keV to 2000keV was used for the final analysis.
The SPM was set to 34oC. Seven test tubes were used in determining the optimal temperature – in the first test tube a solution of 5mM p-Nitrophenol Phosphate with a buffer of pH 8 was used, when the 10 units of enzyme AP was added into the test tube (final volume of 3ml) then the experiment was immediately under way. The test tubes contents were hastily transferred to the cuvette and the put into the SPM, the absorbency readings were recorded every minute for a total of 10 minutes. This haste ensured the enzyme would not have ample time to form product that would have been unaccounted for, thus resulting in skewed readings and a faulty report. When the results for the first test tube were recorded, then the next solution/mixture was prepared.
The story is considered “apocryphal” by modern sources who argue that he came to his conclusions over time. However, Newton himself described the incident; a result why a lot of contemporaries defend this assertion. His theory was that planetary orbits were a result of some kind of a “centripetal” force. Pursuing his hypothesis Newton proved as a theory and then published his observations in ‘Philosophiae, Natrualis, Principia Mathematica’(A comprehensive account of his theory of gravitation and mechanics) Continuing his extensive work in the field of mechanics, Newton expanded the scope of gravitational force eventually developing the theory three laws of motion. The prevalent theory has cause a ripple in perspective of understanding physics.
More than two millennia ago, Aristotle had said that no great genius has ever existed without a touch of madness and his teacher, Plato went on to classify insanity into the clinical and the creative types, the latter being the one that makes an artist great. But not all of this is based on what people have said. A major part of all the information that is available now to establish this link is gathered through
Aristarchus of Samos was born 310 bce on the Greek island of Samos, and died 230 bce. It is said that his work was lost through out time, but his reserved work was an essential key to the study of science. He was a Greek astronomer and mathematician who became popular for his theories about our solar system. Out of math, he was the first to state that the sun, not the earth, was at the center of our solar system. However, everybody thought that hi was insane for thinking that, but he was on the correct.