Mostrando títulos en Ciencia y Tecnología

When a terrible drought struck William Kamkwamba's tiny village in Malawi, his family lost all of the season's crops, leaving them with nothing to eat and nothing to sell. William began to explore science books in his village library, looking for a solution. There, he came up with the idea that would change his family's life forever: he could build a windmill. Made out of scrap metal and old bicycle parts, William's windmill brought electricity to his home and helped his family pump the water they needed to farm the land.

Yvonne Clark had an engineering spark—an instinct for figuring out how things worked. Broken lamp? She screwed, rewired, and wrenched until…light! Wrecked radio? She twisted, snipped, and hammered until…music! Clogged furnace? She picked, plucked, and cleared until…heat! When she grew up, Yvonne’s problem-solving power took her to NASA, where fellow engineers had a serious problem with the Saturn V rocket’s F-1 engine: It had hot spots—high temperatures in the engine. Can Yvonne Clark and her engineering spark solve the problem?

At least as far back as the ancient myth of Icarus, humans longed to fly - but it wasn't until December 17, 1903, on the windy dunes of Kitty Hawk, North Carolina, that the dream finally came true. And it was all thanks to Orville and Wilbur Wright, two former bicycle mechanics who built their first toy plane - a rubber-band powered rotary - when they were just children.

In the mid- to late-19th century, a burgeoning science called electricity promised to shine new light on a rousing nation. Inventive and ambitious minds were hard at work. Soon that spark was fanned, and a war was under way to be the first to light - and run - the world with electricity. Thomas Alva Edison, the inventor of direct current (DC), engaged in a brutal battle with Nikola Tesla and George Westinghouse, the inventors of alternating current (AC). There would be no ties in this race - only a winner and a loser - and the prize was a nationwide monopoly in electric current.

Heroes of History is a unique biography series that brings the shaping of history to life with the remarkable true stories of fascinating men and women who changed the course of history. Known during the Civil War as the "Angel of the Battlefield," remarkable Clara Barton helped to save countless lives on the frontlines of battle. She went on to find thousands of missing soldiers and to organize the American National Red Cross. An incredible story of service and sacrifice.

Children will enjoy listening to early evidence of young Clara Barton's calling such as when Patch, her beloved dog, is injured, and Clara nurses him back to health. They will sympathize with her boarding school days when she is snubbed because she is too shy to talk to other girls. But her shyness disappears when she assists the local doctor.

One day in 1882, Thomas Edison flipped a switch that lit up lower Manhattan with incandescent light and changed the way people live ever after. The electric light bulb was only one of thousands of Edison’s inventions, which include the phonograph and the kinetoscope, an early precursor to the movie camera. As a boy, observing a robin catch a worm and then take flight, he fed a playmate a mixture of worms and water to see if she could fly! An accessible, appealing biography of the inventor.

Born in 1860s Missouri, nobody expected George Washington Carver to succeed. Slaves were not allowed to be educated. After the Civil War, Carver enrolled in classes and proved to be a star student. He became the first black student at Iowa State Agricultural College and later its first black professor. He went on to the Tuskegee Institute where he specialized in botany (the study of plants) and developed techniques to grow crops better. His work with vegetables, especially peanuts, made him famous and changed agriculture forever.

Steve Jobs, adopted in infancy by a family in San Francisco, packed a lot of life into 56 short years. In this Who Was...? biography, children will learn how his obsession with computers and technology at an early age led him to cofound and run Apple in addition to turning Pixar into a groundbreaking animation studio. A college dropout, Jobs took unconventional steps in his path to success and inspired the best and the brightest to come with him and "change the world".

Born in Warsaw, Poland, on November 7, 1867, Marie Curie was forbidden to attend the male-only University of Warsaw, so she enrolled at the Sorbonne in Paris to study physics and mathematics. There she met a professor named Pierre Curie, and the two soon married, forming one of the most famous scientific partnerships in history. Together, they discovered two elements and won a Nobel Prize in 1903. (Later, Marie won another Nobel award for chemistry in 1911.)

With exclusive access to Elon, his family, and his friends, this book traces Elon's journey from a kid in South Africa to a young man in the United States, his dramatic technical inventions, and his world-changing companies. Elon has sparked new levels of innovation in the world, and this book gives young listeners a detailed but fast-paced look at his story.

Meriwether Lewis had been commissioned by President Jefferson to lead a daring expedition so remarkable it would become one of the most famous explorations in history. He chose as his co-captain William Clark. Their mission—to find a land route to the Pacific Ocean while learning as much as possible about the thousands of miles of unexplored territory they struggled through (1774-1809).

Albert Einstein: His name has become a synonym for genius. His wild case of bedhead and playful sense of humor made him a media superstar - the first, maybe only, scientist-celebrity. He wasn’t much for lab work - in fact, he had a tendency to blow up experiments. What he liked to do was think - not in words, but in "thought experiments". What was the result of all his thinking? Nothing less than the overturning of Newtonian physics. Once again, Kathleen Krull delivers a witty and astute look at one of the true giants of science and the turbulent times in which he lived.

Wildlife expert and YouTube phenomenon, Coyote Peterson, is back with the sequel to the best-selling Brave Adventures: Wild Animals in a Wild World. Once again, Coyote and his crew voyage to new environments and encounter an even more eclectic ensemble of the planets' animals. From a slimy octopus to elusive tree climbing lizards to nomadic wolverines - this book promises to be another fast-paced, wild experience.

Like Michelangelo, Galileo is another Renaissance great known just by his first name - a name that is synonymous with scientific achievement. Born in Pisa, Italy, in the 16th century, Galileo contributed to the era's great rebirth of knowledge. He invented a telescope to observe the heavens. From there, not even the sky was the limit! He turned long-held notions about the universe topsy turvy with his support of a sun-centric solar system.

The son of missionary parents, Paul Brand did not plan on becoming a doctor. After training as a builder, he was called by God into medicine and spent a lifetime treating leprosy and restoring hope to thousands of sufferers. Dr. Paul Brand became the first surgeon in the world to use reconstructive surgery to correct the deformities of leprosy in the hands and feet. He strove to eliminate the stigma of the disease and rebuild the lives of those destroyed by it.

With only three months of formal education, Thomas Edison grew up to be one of the most successful inventors of all time. Applying scientific principles to practical use, he made scores of inventions and held over thirteen hundred patents, from improvements on the telegraph and phonograph to the development of the incandescent lamp and a whole system for distributing electricity. Edison's rise from humble beginnings and his unceasing struggle to overcome obstacles illustrate the spirit of America.

Ben Franklin was the scientist who, with the help of a kite, discovered that lightning is electricity. He was also a statesman, an inventor, a printer, and an author-a man of such amazingly varied talents that some people claimed he had magical powers! Full of all the details kids will want to know, the true story of Benjamin Franklin is by turns sad and funny, but always honest and awe-inspiring.

On July 20, 1969, Neil Armstrong stepped on the moon and, to an audience of over 450 million people, proclaimed his step a giant leap for mankind. This Eagle Scout built his own model planes as a little boy and then grew up to be a test pilot for experimental aircraft before becoming an astronaut.

The globetrotting naturalists of the 18th century were the geeks of their day: innovators and explorers who lived at the intersection of science and commerce. Foremost among them was Carl Linnaeus, a radical thinker who revolutionized biology. In What Linnaeus Saw, Karen Magnuson Beil chronicles Linnaeus's life and career in readable, relatable prose.