Personal data is data about people. Researchers collect personal data to learn more about populations. Companies collect personal data online to help sell their products. Personal Data Collection expl
Surveillance is the close observation of a person or a group of people. Governments and organizations surveil people. Surveillance may help find and protect people from threats. But it can also be use
People are adding carbon to the atmosphere. This causes Earth’s temperatures to warm. Scientists are developing fake trees that can capture and store carbon from the air. Capturing Carbon with Fake Tr
People throw away plastic every day. Lots of it ends up in the ocean. It can harm marine wildlife there. Scientists are developing technology that helps collect plastic from the ocean. Cleaning Up Pla
Invasive species are taking over native plants’ habitats. Common control methods are dangerous or impractical. Some people are now turning to goats as a nontoxic and versatile way to deal with invasiv
Most people around the world enjoy caffeine. This drug helps people feel awake. It can have some benefits, but it also has risks. Your Body on Caffeine uncovers the nutritional benefits of caffeine, i
Carbohydrates give the body energy. They are in many foods people eat each day. But some carbohydrates are healthier than others. Your Body on Carbohydrates uncovers the nutritional benefits of carboh
Dairy products come from a mammal’s milk. People around the world enjoy dairy. It has important nutrients. But some of the nutrients can be harmful in large amounts. And some people’s bodies cannot to
Gluten is found in wheat and some other grains. It’s in foods people eat every day. Many people can eat it without problems. Others have a disease that makes gluten damage their bodies. Your Body on G
Salt is the only rock people eat. The human body needs it to survive. But it does not need much. Your Body on Salt uncovers the nutritional benefits of salt, how it interacts with the body, and how to
AT&T Stadium, home of the NFL’s Dallas Cowboys, is one of the newest and most advanced football stadiums in the country. Engineering AT&T Stadium discusses how the structure was designed, how workers
Mount Rushmore, a massive granite carving of four US presidents, is among the most famous landmarks in the United States. Engineering Mount Rushmore introduces readers to its designer, Gutzon Borglum,
One World Trade Center, an enormous skyscraper in New York City, was built in the wake of terrorist attacks that destroyed the original Twin Towers of the World Trade Center. Engineering One World Tra
The Eiffel Tower, build for a World’s Fair in 1889, has become a permanent symbol of the city of Paris, France. Engineering the Eiffel Tower introduces readers to its designer, Gustave Eiffel, shows h
The Golden Gate Bridge, spanning San Francisco Bay in California, has become an iconic symbol of the city of San Francisco. Engineering the Golden Gate Bridge discusses its designer, Joseph Strauss, e
The International Space Station, built in orbit over the course of several years, is the largest single spacecraft in history. Engineering the International Space Station examines the worldwide cooper
The New York City Subway System has been carrying passengers for more than a century. Engineering the NYC Subway System explores how designers drew up plans for the subway, how workers built the under
