Résultats lu par "Dan Schoeneberg" dans Toutes les catégories

Did you know that in the late nineteenth century, the United States military used bikes to travel from one place to another? They were a new invention and a quicker way to travel than walking. Lieutenant James Moss and twenty soldiers tested the durability of bikes by traveling through six states from the West to the Midwest to prove its usability in the military.

When on land, rivers, lakes, and oceans appear flat. With the aid of satellites, these bodies of water appear to have many designs! Explore the art of nature and how satellites detect the temperature of the many bodies of water around the globe.

Safety is important, no matter the location, whether on land or on sea! Children can explore the many boats that are used on the ocean. Tugboats, police boats, ice breaker boats, and rescue boats, all have a different purpose for helping people be safe or to provide rescue on the sea.

How did forgetting to wash a jar make cars safer? A scientist named Édouard Bénédictus accidentally dropped a plastic-coated flask that did not break. This invention was tested and engineered to help today's windshields protect drivers better.

Aluminum was once more valuable than gold. A breakthrough in refining aluminum from rock transformed it from rare matter to sandwich wrapper. In this science story, you'll learn how two chemists, Charles Hall and Paul Héroult, solved the problem.

Learn about how the body processes food by following Joe's pizza lunch—from the plate to his mouth to his stomach and beyond. The nutrients from food are absorbed in the small intestine, which are delivered to rest of the body.

Summer has returned to the beautiful beach but Jake is mourning his grandfather. Gram gives him Grandpa's knife and a wooden seagull to finish carving, but Jake doesn’t think he'll be able to finish what Grandpa started. Walking along the beach for inspiration, Jake sees a special gull he's named Spirit.

Can you imagine visiting a doctor's office for an illness or injury, but getting treated by a robot instead? According to some researchers, this could be the reality in the not too distant future. Ongoing research into artificial intelligence and its use in medicine might someday produce robots that will work alongside human doctors and nurses to deliver the best health care possible.

Inventing is all about ideas—ideas for making products better or creating new ones. To put these ideas into action, young inventors need tools for tinkering. Find out how to put together your own inventor's workshop with simple tools and common household objects.

Did you know that Congress signed the Declaration of Independence on the Fourth of July? In this short play, learn more about the Declaration as Thomas Jefferson himself tells his grandchildren the story of its creation.

Native Americans like Squanto provided good fortune for the Pilgrims of colonial America. During this period, tensions were high between Europeans and the Native Americans in present-day Massachusetts. Squanto, Samoset, and Hobbamock served as interpreters and ambassadors, establishing peaceful alliances between these two groups.

Confederate Major Absalom Grimes carried letters between Civil War soldiers and their families, and became an expert prison escape artist in the process. Hear about Grimes' amazing life of adventure in this historical nonfiction story.

In this adventurous tale of historical fiction, Edward Whymper's struggle to scale the Matterhorn results in triumph and loss, and inspires courage in a young blind friend. As an old man, Emile Favre tells how this famous mountain climber's quest led him to dream beyond his small village in Italy.

Charlie Noble is a retired sea captain who lives by the ocean. Though he's not working anymore, sailing is still in his blood. Even his dog understands the language of ships and sailors.

During the Civil War, the lines between Union and Confederate forces were impassable for everyone, even pacifist Mennonites—unless you were sly like a fox. In this adventurous story of historical fiction, discover how a courageous boy finds a way to help his community while respecting his beliefs.

Union Colonel Thomas E. Rose was captured in a Civil War battle and thrown in the brutal and secure Libby Prison. He quickly realizes that tunneling out is the only way to escape and joins forces with Major A. G. Hamilton to begin digging to freedom.

In a planned conspiracy to burn down major buildings in New York City during the Civil War, eight men of the Confederacy committed acts of terrorism. They attempted to destroy the city and claim it for the South by building a "Greek fire," which is stronger than regular fire because it is caused by chemical reactions.

Do you know the Confederacy had a navy during the Civil War? The CSS Shenandoah plundered Union ships in order to disrupt their commerce. Because they were out at sea, though, they never heard that the Confederates had surrendered, and they continued to fight! Learn about how these sailors were the last Confederate force to surrender.

Injured by a cannonball, James Edward Hanger was the first amputee of the Civil War. Determined to find a better solution than a peg leg, he worked to develop his own artificial limb company. He even continued working past retirement, providing Hanger Limbs for victims of World War I.

America's path to revolution was paved by the great discussions of the Continental Congress, which gathered to address grievances against Great Britain. Adamant that the Colonies remain under British rule, King George III fueled the flames of American independence.