A classical mechanical structure with an internal degree of freedom is shown to reflect off a potential well. Such behavior is impossible for point-like or rigid classical particles. This numerical study provides insight for students studying internal energy and degrees of freedom.

Minimizing the energy consumption of desalination processes is an important goal for augmenting freshwater production and mitigating water scarcity. Chemical, civil, mechanical, and environmental engineering students can derive and analyze the energy consumption of desalination processes by applying engineering fundamentals such as thermodynamics,…

This study examines environmental awareness at a university in Indonesia, focusing on knowledge, attitudes, and behaviors in seven environmental areas: climate, water, food, energy, natural resources, biodiversity, and waste. A total of 442 respondents (380 students, 42 lecturers, 20 educational staff) were surveyed using a Likert scale…

Purpose: This study aims to evaluate the current state of sustainability education and research capacity at engineering faculties. More specifically, this research is intended to provide new and much-needed information about sustainability knowledge, teaching and research activities. Design/methodology/approach: The first method used is a…

The urgency of the current climate crisis emphasizes the need for university graduates equipped with relevant knowledge and skills to tackle environmental and social problems such as material consumption, environmental degradation and inequality at all spatial scales. Geographic and spatially sensitive concepts and approaches to sustainability and…

World regional geography is one of the most popular and most heavily subscribed geography courses in the United States at both the undergraduate and K-12 levels (Rutherford 2001; Mueller 2003; Bednarz 2004). Yet little consensus exists about the content that the course should include or the approach that should be used to teach it. Debate exists…

Interactions with forces and energy can range from a toddler dropping toys repeatedly for someone else to pick up to a group of fifth graders playing soccer at recess. In addition, students may have observed the power of water to move physical objects by seeing news footage of rising floodwaters, experimenting with a garden hose, or spending a day…

Many icebergs are vulnerable to capsizing. In doing so the gravitational potential energy of the ice is increased, while that of the displaced sea water is decreased. Applying the principle of the conservation of energy shows that by capsizing, there is also a net transfer of energy to the surrounding sea water. This will be a maximum for a…

Hydrogen bonds are very important chemical structures that are responsible for many unique and important properties of solvents, such as the solvation power of water. These distinctive features are directly related to the stabilization energy conferred by hydrogen bonds to the solvent. Thus, the characterization of hydrogen bond energetics has…

November 10, 2015, marked the 40th anniversary of the sinking of the "S. S. Edmund Fitzgerald," a Great Lakes bulk cargo freighter that suddenly and mysteriously sank during a severe winter storm on Lake Superior. A year after the sinking, Canadian folksinger Gordon Lightfoot wrote and recorded the ballad "The Wreck of the 'Edmund…

Traditionally, education in various forms has been used as a tool to change values and behavior in children regarding the environment. This study reports findings from the We Love Reading Program that utilizes the reading of Social Stories in various communities in Jordan to address the environmental problems of Jordan. Results indicated the…

Purpose: The purpose of this paper was to enhance and complement teaching about resource system feedbacks and environmental modelling. Students were given an interactive exercise based on a research model (ForeseerTM), developed by an inter-disciplinary research team, that explores the interconnectivity of water, energy and land resources. Two…

Water-flow analogies are helpful in understanding electricity. For example, in the Lodge model, the constant DC voltage source (a battery) is represented by a U-tank with two water columns of the same cross-sectional area connected by a horizontal duct in which a pump is installed. The pump maintains the difference of the levels of the two water…

We present a consistent series of activities, including experiments and basic computational studies, investigating the shape and optical properties of water drops in connection with novel technological devices. Most of the work can be carried out with simple teaching equipment and is well suited to undergraduate students. Firstly, we show how the…

A significant issue associated with ethanol-gasoline blends is the phase separation that occurs with the addition of small volumes of water, producing an ethanol-deficient gasoline layer and an ethanol-rich aqueous layer. The gasoline layer may have a lower-than-desired octane rating due to the decrease in ethanol content, resulting in engine…