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The Future of Artificial Intelligence and Automation

Subtitle:
How Technology is Changing the Way We Work
By Hwang Jaemin | September 17, 2025

Lead Sentence:
Artificial intelligence (AI) and automation are transforming industries and daily life faster than ever before.

Detail 1:
AI refers to computer systems that can learn, reason, and solve problems, often through algorithms and large data sets.
Automation means machines or software performing tasks without constant human control.
Together, they are used in areas such as manufacturing, healthcare, transportation, and even education.
For example, factories use robots to assemble products, while hospitals use AI to help doctors diagnose diseases more quickly.

Detail 2:
Many experts believe automation can improve safety and efficiency.
Self-driving cars, for instance, are being tested to reduce traffic accidents.
At the same time, AI can analyze millions of pieces of information in just seconds, helping companies make better decisions.
However, some worry about job losses and whether people can adapt to new kinds of work.

Interview Quote:
“AI is not here to replace all human workers,” said Dr. Kim, a professor of Computer Science at Seoul National University.
“It is here to support us and create new possibilities that we could not imagine before.”

Conclusion:
AI and automation are deeply connected because automation often needs AI to make smart decisions.
Humans have creativity and emotions, while AI is strong in speed and accuracy.
But how exactly does AI really work? This is a question I want to explore more in the future

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The Chemistry Behind Your New Look: How Hair Dye Works

Subtitle: A Simple Explanation of the Science of Hair Coloring

By: Jung Yeeun

Date: October 13, 2025

Hello! Have you ever wondered how your hair color can magically change from black to brown, or even to a bright blue? It all comes down to some interesting chemistry! Your hair has three layers. The outer layer is the cuticle, like scales on a pinecone. The middle layer is the cortex, which contains the natural color pigments called melanin. Hair dye needs to get inside to the cortex to change your color.

Detailed Explanation 1: Semi-Permanent vs. Permanent Dye

There are two main types of hair dye, and they work very different!

* Semi-Permanent Hair Dye: This type is temporary. The color molecules are small and simply coat the outside of the hair shaft or enter the cuticle slightly. Because they don't change your natural melanin or enter the cortex deeply, they wash out over several shampoos. These dyes are gentler because they usually don't have harsh chemicals like ammonia or peroxide.

* Permanent Hair Dye (Oxidative Dye): This is the "real deal" for long-lasting color. It uses a chemical reaction, called oxidation, to permanently change the color in the cortex. This dye comes in two parts that you mix right before using:

* Alkalizing Agent (like ammonia): This raises the hair's pH, which causes the outer cuticle scales to lift and open, allowing the chemicals to get inside.

* Developer (Hydrogen Peroxide) and Color Precursors: The hydrogen peroxide acts as an oxidizer. First, it lightens your natural melanin by removing color (this is called "lifting"). Second, it reacts with the small, colorless precursor molecules (like PPD) that have entered the cortex. This reaction makes them into new, large, colored molecules that are too big to wash out. \underline{These\:larger\:molecules\:is\:now\:trapped\:inside\:your\:hair's\:cortex}, giving you the permanent color.

Detailed Explanation 2: Color Theory Basics

Understanding color theory is important for getting the shade you want. Your natural hair color is a mix of three primary colors: red, yellow, and blue.

* Level: This is how light or dark your hair color is, usually from 1 (darkest) to 10 (lightest).

* Tone: This is the specific shade of color. For example, a "warm" tone has more red or yellow, while a "cool" tone has more blue or violet.

* Neutralizing: When you dye your hair, especially to go lighter, you might get unwanted warm tones (like brassy orange or yellow). Hairdressers use complementary colors from the color wheel to "cancel out" or neutralize these tones. \underline{Mixing\:complementary\:colors\:together\:will\:create\:a\:neutral\:brown\:or\:grey\:colour\:result}. For example, if your hair is too yellow, you can use a purple toner because purple is opposite yellow on the color wheel.

Interview Quote (Example)

"The biggest mistake people make at home is not understanding the underlying pigment they are trying to change. \underline{If\:you\:have\:dark\:brown\:hair\:and\:apply\:a\:box\:dye\:that\:promises\:light\:brown\:the\:result\:will\:often\:be\:a\:weird\:orange\:colour\:because\:it\:doesn't\:lift\:enough\:and\:reveal\:your\:hair's\:red-orange\:base}. Always do a strand test first!" - A High School Science Teacher with a side hustle as a colorist.

Conclusion

Hair dyeing is a perfect example of chemistry in our everyday lives. From opening the cuticle with an alkaline agent to the oxidation reaction that creates new color molecules, it's a fascinating process!

My Question and Opinion:

* My Question: Considering the potential damage from the harsh chemicals that open the cuticle, what new, gentler technologies might scientists invent in the future to change hair color permanently without using ammonia?

* My Opinion: Although permanent dyes give great results, I think semi-permanent color is a better choice for young people who like to frequently change their look because it is less damaging.

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1520 이지환 신문 오류수정

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1520 이지환 신문 오류수정

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The History of the Korean Language

From Hangeul’s Birth to Modern Korean

By Lee Ji-hwan

Date: September 17, 2025

Lead

Korean language has a long history of change. From King Sejong’s invention of Hangeul to today, it reflects culture and society.

Explanation 1

In 1443, King Sejong created Hangeul to help people read and write easily. Before, most Koreans were using Chinese characters, which only scholars understood. Hangeul’s simple design made learning possible for everyone.

Explanation 2

In the 20th century, history shaped the language. South Korea borrowed many English words, while North Korea tried to remove foreign terms. Today, young people use internet slang and short forms in daily life.

Quotation (Interview)

“Hangeul is a treasure of culture and a scientific alphabet,” said Professor Kim from Seoul National University.

Conclusion

Korean shows how language adapts through time. How has Hangeul changed since Sejong’s era when it was first invented? Hangul is a valuable language to know our history and ethnicity

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The Future of Artificial Intelligence and Automation

Subtitle:
How Technology is Changing the Way We Work
By Hwang Jaemin | September 17, 2025

Lead Sentence:
Artificial intelligence (AI) and automation are transforming industries and daily life faster than ever before.

Detail 1:
AI refers to computer systems that can learn, reason, and solve problems, often through algorithms and large data sets.
Automation means machines or software performing tasks without constant human control.
Together, they are used in areas such as manufacturing, healthcare, transportation, and even education.
For example, factories use robots to assemble products, while hospitals use AI to help doctors diagnose diseases more quickly.

Detail 2:
Many experts believe automation can improve safety and efficiency.
Self-driving cars, for instance, are being tested to reduce traffic accidents.
At the same time, AI can analyze millions of pieces of information in just seconds, helping companies make better decisions.
However, some worry about job losses and whether people can adapt to new kinds of work.

Interview Quote:
“AI is not here to replace all human workers,” said Dr. Kim, a professor of Computer Science at Seoul National University.
“It is here to support us and create new possibilities that we could not imagine before.”

Conclusion:
AI and automation are deeply connected because automation often needs AI to make smart decisions.
Humans have creativity and emotions, while AI is strong in speed and accuracy.
But how exactly does AI really work? This is a question I want to explore more in the future

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1522 정서윤 신문 최종본

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1522 정서윤 신문 최종본

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1522 정서윤

Taxes, Accounting, and Social Fairness

How fair taxes can support everyone

만든이: 정서윤

날짜: September 17, 2025

Taxes are not only numbers in accounting, but they are also the way societies pay for schools, hospitals, and roads.

Every country needs money to run public service. These services include education, health care, and safety, which all citizens use. For this reason, all members of society are asked to pay taxes. Accounting is important here, because it records and checks how much money is collected and used. Fairness in taxes means that the system is designed so people pay in proportion to their income and wealth.

However, some big companies and rich individuals try to reduce their taxes. Tax avoidance is when people use legal methods, like loopholes, to lower their tax. Tax evasion is when they illegally hide money or give false reports. Both actions make the government collect less money. Then, the normal people who pay their taxes honestly have to carry more burden. This situation feels unfair, because fairness means everyone contribute in a way that match their ability.

As the Organization for Economic Co-operation and Development (OECD) explains, “When taxpayers believe the system is unfair, they may lose trust in government and refuse to comply.”

Taxes are not only about money, but about justice in society. If everyone pays fairly, society can grow stronger together. But if some escape their duty, the weight falls heavier on ordinary people.

What I want to know more is: How does the government really make sure that taxes are collected in a fair way? What are the exact effects of tax avoidance and evasion on our daily life? In my opinion, stricter systems are needed to block unfair behavior, so that fairness can be kept in our society.

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기사 오류 완전 수행평가