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Ships, bridges, and tall buildings are marvels of engineering. They are designed to be strong and safe. But even state-of-the-art designs don't always hold up in the real world. …
Have objects from space ever hit Earth? Yes Every day small meteoroids crash into the atmosphere. Some burn up, but some hit the ground. Space junk also falls to Earth. Comets and …
While her family hid during the Holocaust, Anne Frank recorded her personal reflections as well as the harrowing circumstances she faced in her diary. Read about her life before …
Forced into exile in India after Tibet's attempted revolt against occupying Chinese forces, the Dalai Lama launched a nonviolent campaign against the occupation that earned him a …
Without inventors, we wouldn't have cars, airplanes, or light bulbs. Inventors build devices that make our lives better. But not all inventions succeed. In fact, the history of …
Technology has improved our use of movement to do work. This includes robots, drones, and remote-control toys. But the basic principles behind movement require no batteries or …