Essays on Science

The smooth flow in pipes can be divided into laminar and turbulent flow using the critical velocity. The flow pattern is determined by the diameter of the pipe, flow rate, density and viscosity (Assefa and Kaushal). Thus a set of dimensionless groups can be determined using the following variables Where  is the...

The hydrogen-powered vehicles utilize the hydrogen gas to power an electric motor. The hydrogen cars are electric vehicles (EV). The hydrogen gas only produces water and heat as byproducts. Hydrogen is the most basic element and among the most abundant and exist as compound rather than a single element. Hydrogen...

Consider a boy throwing a tennis ball in air through an angle; in a range that is fructose induced. Figure 1below shows the path taken by the ball through space. In our case scenario, the tennis ball is considered as a projectile that is two-dimensional. Such is due to the...

Radius at 200 km altitude is (6378+200)*103m = 6578*103m b) At 35786 km Solution Radius = (35786+6378)*103 = 42164*103m Question 2: Calculation of a Hohmann Transfer a) Drawing of an Orbit b)...

The Big Bang theory is a model that explains how the universe and the matter within it was formed from a cosmic singularity. This model posits that in over thirteen billion years since the formation of the universe, it has expanded from a tiny yet dense and hot primordial fireball...

Ø To investigate the spring constants of springs in series and parallel arrangements. Ø To investigate the Spring Constant of two different springs. INTRODUCTION In this laboratory exercise we were conduct an experiment to determine the spring constant of a spring and then investigate the effect of putting the spring in...

Cooling fans are supposed to bring fresh air into the room. They are designed to rotate using a motor. However, this fan uses electricity to function. Cooling fans can be more useful if they are used to light our rooms by converting the mechanical energy produced by the motor to...

Hooke’s Law explains the behaviour of the spring and other linearly elastic objects. According to the Hooke’s Law, the stress is always directly proportional to the strain. The aim of the Hooke’s Law experiment was to investigate and verify Hooke’s Law and the acceleration due to gravity with a linearly...

When a circuit is closed, the potential difference causes charges to move within the circuit thus constituting current passing through various appliances to perform designated functions. The electrical power generated from the power source is not all utilized as desired as some of the power is lost in the form...

The social reaction or labelling theory focuses on the negative linguistic characterisation or tendency embraced by a majority group to a minority group based on the deviance from social norms. According to the theory, self-identity, as well as the behaviours of individuals, may be influenced or determined by the perspective...

Source: www.state.gov/j/ct/rls/crt/2016/272241.htm. The table compares the number of terrorists’ attacks in the worst-hit countries around the world in the year 2015 and 2016. The table offers a quick comparison of shifts in the number of terror attacks as well as arranges the countries according to the order of frequency of attacks....

“Man is by nature a political animal” (Aristotle and Reeve 4). In this regard, Aristotle insinuated that it is difficult for a man to live with no political association or in anarchy. There are certain needs for a man which can only be fulfilled by a political association. Therefore, Aristotle...