목재 건물
Wood has been an important building material for homes and other structures in many areas since ancient times. Modern tall buildings, however, are made out of man-made products, such as steel, concrete and glass.

그루터기
There are many stories of early settlers of America: the people who moved westward and opened up new territory. Many of these settlers were farmers who wanted a new home, a piece of land, some crops and cattle.

추운 날씨에 달리기
A new study shows that the drop in temperature is a good reason to run. In fact, researchers say, running in cold weather helps improve one’s performance.

쇼핑의 미래
These days, shopping often involves an Internet connection and a laptop or smartphone. However, businesses are now trying to use new technology, such as 3D printing and augmented reality, to bring customers back into stores.

땅콩 알레르기
Millions of American children are raised on peanut butter and jelly sandwiches. PB&Js, as we like to call them, are found in children’s lunchboxes across the country.

눈을 깜박이는 이유
People blink their eyes tens of thousands of times every day. Scientists have long believed blinking was an involuntary movement and served mainly to keep the eyeballs wet.

성인아이
Pew researchers found that 32 percent of 18-to-34-year-old Americans lived at their parents’ home in 2014. That is the highest percentage nationwide since 1940.

학교 안의 요가
Along with subjects like reading and mathematics, school children at the Robert W. Coleman Elementary School are learning how to spend time in quiet thought.

건축자재 깃털
Bird feathers have long been used in clothing and in bedding. Manufacturers often use feathers because of their light weight and the warmth they provide in a cold room or climate.

에어 택시
Airbus says it plans to test a prototype of a self-flying vehicle to transport people in the sky above busy city streets.