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As things get smaller in the modern world, so do parts, and this article will discuss electrical discharge machining among the various machining methods used to manufacture them, including its advantages and limitations and how they can be overcome.   In the modern world we live in, many objects are becoming smaller than in the past. Smartphones, laptops, and tablet PCs are some of the most...

Explain who is responsible for repairing office mosquito screens, the landlord or the tenant, and which rule takes precedence when legal regulations and contractual agreements conflict. Discuss the relationship between law and contract, including the difference between discretionary and mandatory laws, and illustrate with specific examples how the principle of freedom of contract applies.  ...

Women today consider themselves fat regardless of their weight, and the dieting craze in pursuit of a slimmer body is fueled by social, historical, and economic factors.   Today, women often consider themselves fat, regardless of their weight. Young and old alike want to be thin, and this desire leads to dieting crazes. The diet craze can be a mirror of our society, as the body is related to...

Sound pressure refers to the physical loudness of a sound, while loudness refers to the perceived loudness of a sound. The interaction between frequency and sound pressure determines loudness, which is closely related to human hearing characteristics. Understanding how loudness changes with frequency can help advance acoustic technology and create better acoustic environments.   In physical...

Séoula exhibited Un dimanche après-midi sur l’île de la Grande Jatte at the 1884 Independence Exhibition to acclaim, and his pointillism and scientific color theory overcame the limitations of Impressionism to have a major impact on 20th-century art.   Séra exhibited Un dimanche après-midi sur l’île de la Grande Jatte at the Independence Exhibition in 1884. At this exhibition...

Fear appeals are a strategy that maximize persuasive effectiveness based on threat and efficacy levels, taking into account both the emotional and cognitive responses of the audience.   Fear appeals persuade audiences by emphasizing the harmful consequences of not following a message’s recommendations, and have been studied by persuasion researchers since the early 1950s. Fear tactics...

This article explores the purposefulness of natural phenomena, focusing on Aristotle’s theory of purpose, and discusses perspectives and criticisms from modern and contemporary science, as well as ecological reassessments.   Is everything that happens in nature purposeful? Ants hobbling around carrying twigs and leaves larger than their bodies certainly seem purposeful. These behaviors...

As if answering my mother’s question, the book explains the value and role of literature, explaining that literature does not oppress, but provides human freedom and pleasure, and makes us aware of social injustice.   Throughout my life, my mother asked me what was the point of writing literature that I couldn’t use. Only now do I give you a belated answer. Literature is not a...

While artistic trends since World War II have sought excessive expression, minimalism has become an artistic school of thought that emphasizes simplicity and scalability in music, architecture, design, and other fields, revealing essence through concise expression.   After World War II, there was an artistic tendency to over-express artistic emotions and meanings, such as war-related anxiety...

This lesson explains Johann Scheibler’s contributions to acoustics through the invention of the tuning fork and the process of frequency measurement, covering the history of the tuning fork and its acoustical principles.   A tuning fork is made by bending a square bar of metal of a certain thickness into a U-shape and welding a steel pole securely to the bottom. The device is...