Logarithm

During his research he adapted John Napier's logarithms to a scale, inventing the circular slide rule in 1632 and in 1633 he invented the linear slide rule. The symbols sin, tan and sec were also a result of his research. Oughtred created a school for young men who had an interest in science. This school…

approximately ten times greater. A log scale accommodates large ranges by spacing order of magnitude equally along the axis. For example, doses might be as follows: 1, 3, 10, 30, 100, 300, 1000, 3000, and 10000 nM. When we convert these doses to logarithms (and slightly rounded), these values are equally spaced: 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, and 4.0 (What are dose-response curves, n.d.) I also practiced in step 3 and 4 how to plot the data by dragging the data points to the correct…

A Whodunit for All Time HOLLAND, MI - A few weeks ago, a woman fell to her untimely death in the atrium of Schaap Science Center at Hope College. Because the woman was a teaching assistant at Hope College in a class where few students were doing well, foul play was immediately suspected by the investigating officers. While security footage did not capture her death, the Holland Police Department forensics team was able to collect biological data from the scene for analysis. Since that time,…

One class started out with a simple explanation of logarithms using a baby’s steps and a mothers steps as a metaphor. Later in the class we reviewed the harmonics of jazz by watching historical greats like Art Tatum play and following the jazz harmonics pattern. In that same class we also managed to fit in…

working toilets. O’Hare tells his students that they have been taught by teachers who have been paid less and less and trained not so well. He also talks about his problems with the education curriculum. I agree because students are being taught about logarithms and the Pythagorean theorems and not on basic aspects of life such as writing clear and legible English, or how the government and business actually work. He also shares his concerns with the budget deficit that is plaguing the state of…

3-dihydro-1,4-phthalazinedione. 1.2 Results and Analysis 1.2.1 Tables 1 and 2 When observing the consumption of luminol in proportion to time in a solution that included the blood, also known as Experiment 1, it was required to know the natural logarithm of the concentration of luminol. After each recorded concentration of luminol had been completed, it was also required to find…

2.2.5 Sales Growth and Firm’s Profitability Most of the research listed sales growth as one of the control variables on firm’s profitability. From the majority research results, it can be observed that sales growth is positively correlated with firm’s profitability. Previous study done by Makori and Jagongo (2013) indicated that sales growth can affect firm’s profitability significantly. The result suggested that there is a positive association between sales growth and profitability of the…

One of the parameters that determines water quality is pH. It is defined as the negative logarithm of the hydrogen ion and is intended to be a measurement of the balance of acids and bases. Temperature affects pH. In pure water, a decrease in pH of 0.45 occurs when temperature is increased by 25°C [11]. There are several methods for measuring pH. The most common is the use of a glass electrode sensible to it, a reference electrode and a measurement device. Another method is the use of…

A conflict is an argument or a disagreement, some class of contradictory situation. Literature divides conflicts in two types, internal and external. The internal conflict is centered in a person’s own self and what happens inside of their mind, led primarily by their morals and values. The external conflict occur when there is a struggle between a person and external aspect, something or someone besides themselves. Two different personal experiences, one of each type of conflict, will be…

Leonhard Euler, a Calvinist mathematician whose work in math is still praised today. One thing Euler is praised for is how he made math so simple and was able to give an extremely in-depth analysis. Euler was born April 15, 1707, in Bale, Switzerland. Europe’s best mathematician, Johann Bernoulli, tutored him. Since Leonhard Euler’s father was Calvinist pastor, he wanted his son to follow in his footsteps. The reason that he didn’t was Bernoulli saw his mathematical potential and advocated for…