학습안내
교재안내
e-STUDY
무비클래스
영어동화
초등비문학
중등비문학
고등비문학
MY BOOK



             

1
395 R  781 C  The History and Science of Sonic Booms
Humans have always loved speed. In 1947, Chuck Yeager flew faster than sound for the first time. It was an important moment in flying history. Supersonic planes make loud sounds called sonic booms. These booms can be very noisy and bother people. Scientists study these booms to understand and reduce...
VOCA READING BLOCK ORDER 더빙연습
2
881 R  1043 C  The Hidden Costs of the White T-Shirt
The white t-shirt is very common, but it affects the environment and people. Every year, two billion t-shirts are sold. Most start on cotton farms in the U.S., China, or India. Making one t-shirt needs 2,700 liters of water and many pesticides. These chemicals hurt workers and nature. The cotton ...
VOCA READING BLOCK ORDER 더빙연습
3
881 R  1043 C  The Importance of Safe Drinking Water
Water is very important for life. But not all water is safe to drink. About 10% of people in the world do not have clean water. This is often because of dirty conditions. Germs like bacteria, viruses, and parasites can make water unsafe. These germs cause serious diseases, especially in young childr...
VOCA READING BLOCK ORDER 더빙연습
4
908 R  1097 C  The Power of the Placebo Effect
In 1996, a study tested a fake painkiller called Trivaricaine. It had no real pain-relieving effects. But people said they felt less pain in the treated area. This is an example of the placebo effect. Fake treatments can sometimes cause real health improvements. The word "placebo" has been used s...
VOCA READING BLOCK ORDER 더빙연습
5
866 R  1012 C  The Invention that Powered Modern Computers
Modern computers can do tasks that were impossible in the past. Their power comes from an important invention: the transistor. A computer is a machine that does math. Early computers used mechanical parts or tools like the abacus. Modern computers use electric voltages to show numbers. They work wit...
VOCA READING BLOCK ORDER 더빙연습
6
889 R  1059 C  How a Guitar Produces Sound
When you pluck a guitar string, it makes a standing wave. In this wave, some points (nodes) do not move, while others (anti-nodes) vibrate. These vibrations travel through the guitar’s body. The wood vibrates and creates sound waves, which we hear as music. The pitch of the sound depends on how...
VOCA READING BLOCK ORDER 더빙연습
7
741 R  763 C  The Journey of Three Plastic Bottles
This is the story of three plastic bottles. Each bottle is thrown away and follows a different path. These bottles are made from oil and gas turned into plastic. Bottle one goes to a landfill. It stays there for up to 1,000 years. Over time, it makes toxic liquids that can pollute the soil and wa...
VOCA READING BLOCK ORDER 더빙연습
8
845 R  970 C  How Brass Instruments Create Sound
Brass instruments like the trumpet, tuba, and trombone make sound using human breath and their structure. The sound starts with the player's lips vibrating, called "buzzing." The player blows air through tight lips, creating a vibration. This vibration is made louder by the mouthpiece and the instru...
VOCA READING BLOCK ORDER 더빙연습
9
903 R  1087 C  Archimedes and the Floating Giant
The famous "Eureka!" moment of Archimedes is often linked to his discovery of buoyancy in a bathtub. But the real story may be connected to a huge engineering project for King Hieron of Syracuse in the 3rd century BC. The king wanted to build a giant ship, the Syracusia, as a gift for the Egyptian r...
VOCA READING BLOCK ORDER 더빙연습
10
886 R  1053 C  How Your Smartphone Knows Your Location.
Your smartphone can find your location using satellites, atomic clocks, and quantum mechanics. GPS satellites orbit 12,000 miles above Earth and send radio signals. Your phone measures how long it takes for these signals to arrive. It uses the speed of light to calculate the distance to each satelli...
VOCA READING BLOCK ORDER 더빙연습
11
895 R  1070 C  How Earthquakes Affect Buildings
Earthquakes can cause buildings to collapse, but it is not just because the ground shakes. When the ground moves, it pushes the building’s foundation and lower levels. This sends shock waves through the building, making it vibrate. The vibration depends on how heavy and stiff the building is. Tall...
VOCA READING BLOCK ORDER 더빙연습
12
758 R  797 C  The Chemistry of Car Coolants
Cars help people move and have interesting chemistry. Engines burn gasoline and air to make energy. This gives off heat because of an exothermic reaction. Too much heat can harm the engine. A cooling system stops this by moving liquid coolant through the engine. Water can hold heat well, but it f...
VOCA READING BLOCK ORDER 더빙연습
13
768 R  816 C  Navigating and Evaluating the News
Today, we have too much information. Knowing how to understand the news is very important. In the past, news came from a few trusted sources. But now, with the internet and new media, everyone can share news. This makes it hard to tell what is true. To get correct information, check the original ...
VOCA READING BLOCK ORDER 더빙연습
14
911 R  1102 C  How a Computer Processes a Mouse Click
When you use a computer, there's a lot happening behind the scenes to make even a simple action like clicking a mouse work. The mouse itself is a simple device that detects motion and sends a signal to the computer when clicked. This signal is first processed by the basic input/output system (BIOS),...
VOCA READING BLOCK ORDER 더빙연습
15
786 R  852 C  Understanding Public Opinion Polls
Polls are used to find out what people think about things like elections or fashion. But polls are not always correct. The results depend on the sample. If the sample is too small or does not include different kinds of people, the results may be wrong. Also, if questions are hard or about topics peo...
VOCA READING BLOCK ORDER 더빙연습
16
808 R  896 C  Materials That Remember Shapes
Shape memory alloys are amazing materials used in many areas. These metals can "remember" shapes because of the way their atoms are arranged. The atoms in these alloys can switch between different arrangements, or phases, when the temperature changes. For example, a wire made of nickel and titanium ...
VOCA READING BLOCK ORDER 더빙연습
17
814 R  909 C  The Roles of Scientific Laws and Theories
Scientific laws and theories have different roles in science. A scientific law predicts what will happen in certain conditions, while a theory explains why things happen. Laws are stable because they match the observed data well, but they can change with new information. Theories are more flexible a...
VOCA READING BLOCK ORDER 더빙연습
18
862 R  1004 C  The Physics of Surfing
Surfing involves complex physics, from entering the water to riding a wave. A surfboard floats because of buoyancy, which creates an upward force by displacing water. This force balances the surfer’s weight. Ocean waves carry energy from wind, moving towards the shore where shallow water refracts ...
VOCA READING BLOCK ORDER 더빙연습
19
823 R  926 C  How PET Scans Work
Positron Emission Tomography (PET) scans are advanced medical tools used to detect diseases like cancer and Alzheimer's. They use radioactive tracers, such as FDG, made in a cyclotron. In the cyclotron, protons are accelerated and collide with heavy oxygen atoms to create a radioactive isotope, like...
VOCA READING BLOCK ORDER 더빙연습
20
810 R  900 C  The Science Behind Neon Signs
Neon signs became popular in the early 20th century. They work by trapping neon gas in glass tubes and applying an electric current. The current excites neon atoms, making their electrons jump to higher energy levels. When the electrons return to normal, they release light, giving neon signs their g...
VOCA READING BLOCK ORDER 더빙연습
21
816 R  912 C  The Science Behind Opera Singing
Opera singers can project their voices above an orchestra without microphones because of a technique called "squillo." This ringing sound comes from manipulating the harmonics of a note. Each musical note has a fundamental frequency and higher-frequency overtones. The human ear hears best at frequen...
VOCA READING BLOCK ORDER 더빙연습
22
826 R  933 C  Combating Antibiotic Resistance
Antibiotics are essential for modern medicine, helping with surgeries and chemotherapy. However, bacteria are becoming resistant to these drugs, and new antibiotics are not being discovered fast enough. This problem began with the use of penicillin in 1928. Over time, bacteria evolved resistance, an...
VOCA READING BLOCK ORDER 더빙연습
23
930 R  1141 C  The History and Misuse of IQ Tests
The IQ test was created in 1905 by Alfred Binet and Théodore Simon to identify children needing academic help. It measures cognitive abilities and gives a single score for general intelligence. However, because intelligence has no clear definition, IQ tests have been misused to support harmful ...
VOCA READING BLOCK ORDER 더빙연습
24
843 R  967 C  Understanding DNA Ancestry Tests
DNA tests can show information about ancestry, but they have limits. For example, siblings can get different results from the same test. This happens because of recombination, a process that mixes DNA from parents differently in each child. Even though siblings share the same parents, the DNA they i...
VOCA READING BLOCK ORDER 더빙연습
25
835 R  951 C  The Evolution of the Second
The definition of a second has changed over time, with atomic clocks now providing the most precise measurement. Ancient civilizations measured time using calendars based on celestial movements. The second, as we know it, was introduced in the late 1500s with the Gregorian calendar. This calendar di...
VOCA READING BLOCK ORDER 더빙연습
READING FORCE ENGLISH BOOK CLUB