Wavelength

In this stasis map paper there is four parts of an argument that will be discussed.This argument process was developed by Aristotle and Hermogenes, in ancient Greece.The four parts are conjecture, definition, quality and policy. Conjecture is the cause and the effect of an argument.Definition is the “What is the nature of the problem/issue?What exactly is the problem/issue?What kind of a problem/issue is it?To what larger class of things or events does it belong? What are its parts, and how are…

function. In this model r, K and are nonnegative parameters and H > 0. In this model H denotes the contribution of the sine function to the growth of the population under the logistic growth model with periodic harvesting. Parameter ω represents the wavelength of the sine function that determines periodic harvesting. The Logistic model with periodic harvesting translates to a differential equation which is non-autonomous having a period of T and depending explicitly on time. We can…

of substrate solution B was added to each well. 7. The plate was gently shaken and incubated for 15 minutes at 37℃ away from light. 8. Fifty μl Stop Solution was added into each well to stop the reaction. 9. The absorbance was measured at 450 nm wavelength within 15 minutes after adding the stop solution using a microtiter plate reader.…

Explanations of color that involve anthropocentric kinds make the basic assumption that different objects which appear to be the same color to normal human observers in standard viewing conditions are the same color. C.L. Hardin, author of “Color Qualities and the Physical World,” takes issue with this view because he calls into question if such “normal” observers, under “standard” conditions even exist. Hardin argues that there is no such thing as a normal observer, pointing out that simply…

• In order to make this report a reliable and honest source, uncertainty values of the volumes and absorption are mentioned (will be mentioned). • Before each measurement I have checked carefully that the cuvette is clean and dry so when the wavelength passes in the spectrophotometer, the absorption results will not get distorted. • I have noticed that in some of the samples there were Spirulina cells that have accumulated to a visible strains, darker than the Spirulina which is more spread…

Cancer, skin disease, plants and wildlife all around us dying, the ozone hole is dangerous and the threat is real. The hole in the ozone layer has the potential to cause mass damage to the Earth. The Antarctic region is devastated due to the exposure to ultraviolet light and the climate across the world has begun to shift. Due to the harmful impact humans have has on the environment, this even could cause a major catastrophe for the earth and its inhabitants. The ozone is a layer of gas in the…

X-rays were discovered in 1895 by Wilhelm Conrad Roentgen, a Professor at Wuerzburg University in Germany. While working with a cathode-ray tube in his laboratory, Roentgen observed a fluorescent glow of crystals on a table near his tube. In the past, people were unaware of how harmful x-rays are, because they are invisible. Scientists and researchers working in the radiography field were not aware of the effect on the body after continuous exposure. When radiography was in its infancy, it was…

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere. Greenhouse gases are those that absorb and emit infrared radiation in the wavelength range emitted by Earth. The majority of greenhouse gases in Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, ozone and chlorofluorocarbons. The first person to argue for the greenhouse effect was Joseph Fourier in…

Over the years, chaos has become my calm. Silence has become unsettling; silence usually means that mischief is afoot. This is all thanks to my cousin Kayla. Kayla was diagnosed with autism when she was two years old, after my aunt and uncle noted that Kayla wasn't developing the way an average two-year-old does. She didn't talk, avoided eye contact, and preferred to spend her time playing with silverware rather than her sisters. Our family was devastated when we got the news that she was…

Another study has shown that taking electrical devices, like a cell phone, to bed during the night can affect sleeping patterns. The handheld devices emit a blue LED light that tricks the brain into staying awake longer. The brain produces a chemical hormone called melatonin that prepares the body for sleep. The light from the screen however throw a person’s internal clock off and make them stay awake. Why does the blue light keep people up? A study in 2002 found that light signals in our eyes…