Essays on Science

Snell’s law or the Law of Refraction is .Consider a light ray which travels from fixed points P to Q. The ray will choose the quickest route (through the point X, which is not fixed) and so minimize the time of travel. The light ray has velocity CA in medium...

A piston is manufactured mostly using cast aluminium alloys. Rings are made using either cast iron or stainless steel. The manufacturing process depends on the intended application of the piston. The most common process is through casting. Typically, casting process involves pouring molten metal into a mould with a design...

Hydraulic actuators convert fluid pressure to mechanical energy that is used to drive output members in heavy and high-speed industrial equipment. Highly incompressible fluids, especially oils are used in the cylinders to ensure that pressure applied at the input is instantaneously transmitted. The operation of these machines primarily relies on...

There are several methods used in angular measurements as discussed in this paper. Albeit the standard magnetic compass has been used to give approximate values of angles, it has several inherent problems such as the inability to correctly align with the earth's rotational axis. As a result, more efficient devices...

This document reports on the lab exercise which was performed on an audio amplifier with the main aim of obtaining its frequency response characteristics and maximum gain. The frequency response characteristics of the amplifier include its bandwidth, signal to noise ratio, voltage gain and power gain. Amplifiers are employed in...

Beams are structural elements designed to bear structural load (dead load) and other external loads (live loads).  Bending moment of a beam denotes a reaction that a structural beam produces when an external force is applied on the beam causing its bending. In civil engineering the bending moment is referred...

A truss is a structure consisting of beams that are triangularly connected and applied in costructing buildings and bridges (Taranath, 2016). A framework comprising of cross-members that are connected using pin joints and supported at both ends using rollers or hinged joints is considered to be statically determinate (Hibbeler, 2015)....

Learning seeks to provide an understanding that aids in solving problems and finding solutions. Programming has been applied in different fields to find solutions including the application of dynamic programming in bioinformatics. The essay offers a review of two articles on the application of dynamic programming. Articles reviewed             The first article...

Building construction is a rewarding, significant but complex process. The construction project usually begins with a concept and ends in a structure that might house people for many years. Nevertheless, the planning stage of the construction projects needs an orderly and well-planned assembly of all the needed resources. Articulation of...

In recent years, most construction of buildings is conducted using both the ancient and modern methods. Buildings existed from long ago history which were constructed mainly for reasons of shelter provision. However, modern buildings have undergone revolutionary changes including the use of various types of construction materials such as timber,...

Arguably, employee appraisal has become the cornerstone of any organisation (Beckmann and Wood 2017, p.1489). Importantly, direct and albeit effects of personal differences and assessment have increasingly become core target; its necessity rises big day by day. Employee assessment is crucial to growth, achievement, and general realisation of a firm...

IDEO is an international design and innovation firm founded in 1991 and has it’s headquarter in California, United States. The company is headed by Tim Brown as the Chief Executive Officer and boasts of over seven hundred employees. The discussion focuses on the most interesting fact about the company based...