When she meets Charles Babbage, the inventor of the first mechanical computer, Ada understands the machine better than anyone else and writes the world's first computer program in order to demonstrate its capabilities.

    What is creating this revolting smell? The answer is gross: the river is full of poop. But the smell isn’t the worst problem. Every few years, cholera breaks out, and thousands of people die. Could there be a connection between the foul water and the deadly disease? One engineer dreams of making London a cleaner, healthier place. His name is Joseph Bazalgette. His grand plan to create a new sewer system to clean the river is an engineering marvel. And his sewers will save lives. Nothing stinky about that.

    I share my dream of a birthday gift."It begins in 1865 as a romantic idea, but ten years later Edouard Laboulaye's dream catches fire and takes shape. Sculptor Auguste Bartholdi gives the dream the form of a lady, holding a torch to "enlighten the world." Engineers, plasterers, carpenters, coppersmiths -- many of them immigrants -- work together to turn the lady into a monument over 100 feet tall. Joseph Pulitzer calls on readers to help fund a pedestal, and hundreds send in nickels, dimes, and even roosters for the cause. Doreen Rappaport's historically accurate, poetic vignettes and Matt Tavares's magnificent images remind us of the true origins of a national symbol -- and show that it took a lot of people to make the Lady.Back matter includes statue dimensions, a time line, an author note, an illustrator note, sources, and suggestions for further reading.

    She knew it was wrong that people thought women could only be teachers or nurses--as wrong as 10-5=3. And she proved everyone wrong by zooming ahead of her classmates, starting college at fifteen, and eventually joining NASA, where her calculations helped pioneer America's first manned flight into space, its first manned orbit of Earth, and the world's first trip to the moon!Award-winning author Suzanne Slade and debut artist Veronica Miller Jamison tell the story of a NASA "computer" in this smartly written, charmingly illustrated biography.

    He named the bear Winnie, after his hometown of Winnipeg, and he took the bear to war. Harry Colebourn's real-life great-granddaughter Lindsay Mattick recounts their incredible journey, from a northern Canadian town to a convoy across the ocean to an army base in England . . . and finally to the London Zoo, where Winnie made a new friend: a boy named Christopher Robin. Gentle yet haunting illustrations by acclaimed illustrator Sophie Blackall bring the wartime era to life, and are complemented by photographs and ephemera from the Colebourn family archives. Here is the remarkable true story of the bear who inspired Winnie-the-Pooh.

    . .One night, her mother takes her to the ballet, and everything is changed. Anna finds a beauty inside herself that she cannot contain.So begins the journey of a girl who will one day grow up to be the most famous prima ballerina of all time, inspiring legions of dancers after her: the brave, the generous, the transcendently gifted Anna Pavlova.

    Could he pull it off? In a captivating collection of poems, Roxane Orgill steps into the frame of Harlem 1958, bringing to life the musicians’ mischief and quirks, their memorable style, and the vivacious atmosphere of a Harlem block full of kids on a hot summer’s day. Francis Vallejo’s vibrant, detailed, and wonderfully expressive paintings do loving justice to the larger-than-life quality of jazz musicians of the era. Includes bios of several of the fifty-seven musicians, an author’s note, sources, a bibliography, and a foldout of Art Kane’s famous photograph.

    It's been around for centuries; from the ancient Greeks to the American Indians, everyone's chewed it. But the best kind of gum; bubble gum! wasn't invented until 1928, when an enterprising young accountant at Fleer Gum and Candy used his spare time to experiment with different recipes. Bubble-blowing kids everywhere will be delighted with Megan McCarthy's entertaining pictures and engaging fun facts as they learn the history behind the pink perfection of Dubble Bubble.

    Her mother was bedridden, her father rarely home, and Mary served as housekeeper, handyman, nursemaid, and servant. Not until she was thirty years old did Mary get her chance to explore the world she’d read about in her father’s library. In 1893, she arrived in West Africa, where she encountered giant Xying insects, crocodiles, hippos, and brutal heat. Mary endured the hardships of the equatorial country—and thrived.

    A prodigy, he was leading his own band by age six, and today this Grammy-nominated artist headlines the legendary New Orleans Jazz Fest. Along with esteemed illustrator Bryan Collier, Andrews has created a lively picture book autobiography about how he followed his dream of becoming a musician, despite the odds, until he reached international stardom. Trombone Shorty is a celebration of the rich cultural history of New Orleans and the power of music.

    What began as an attempt to make army hospitals safer and more effective became a lifelong mission, and remains relevant today. This new picture book biography of Florence Nightingale, from celebrated author and artist Demi, beautifully portrays the story of Florence's life and explores the long-lasting effects of her career.

    Her family, like most Dutch families, must patch their old worn clothing and go without everyday things like soap and milk. Then one spring morning when the tulips bloom "thick and bright," Postman Kleinhoonte pedals his bicycle down Katje's street to deliver a mysterious box – a box from America! Full of soap, socks, and chocolate, the box has been sent by Rosie, an American girl from Mayfield, Indiana. Her package is part of a goodwill effort to help the people of Europe. What's inside so delights Katje that she sends off a letter of thanks – beginning an exchange that swells with so many surprises that the girls, as well as their townspeople, will never be the same.This inspiring story, with strikingly original art, is based on the author's mother's childhood and will show young readers that they, too, can make a difference.Boxes for Katje is a 2004 Bank Street - Best Children's Book of the Year.

    Mesmer’s mysterious powers in a whimsical look at a true moment in history.The day Ben Franklin first set foot in Paris, France, he found the city all abuzz. Everyone was talking about something new. Remarkable. Thrilling. Strange. Something called Science!But soon the straightforward American inventor Benjamin Franklin is upstaged by a compelling and enigmatic figure: Dr. Mesmer. In elaborately staged shows, Mesmer, wearing a fancy coat of purple silk and carrying an iron wand, convinces the people of Paris that he controls a magic force that can make water taste like a hundred different things, cure illness, and control thoughts! But Ben Franklin is not convinced. Will his practical approach of observing, hypothesizing, and testing get to the bottom of the mysterious Mesmer’s tricks? A rip-roaring, lavishly illustrated peek into a fascinating moment in history shows the development and practice of the scientific method—and reveals the amazing power of the human mind.

    And they did so during a time when being black and a woman limited what they could do. But they worked hard. They persisted. And they used their genius minds to change the world.In this illustrated picture book edition, we explore the story of four female African American mathematicians at NASA, known as "colored computers," and how they overcame gender and racial barriers to succeed in a highly challenging STEM-based career.

    At age 15, she was freed, and by age 20, she was married and had her first child. By age 68, she had worked numerous jobs, including cooking, cleaning, babysitting, and selling sandwiches to raise money for her church. At 114, she was the last remaining member of her family. And at 116, she learned to read. From Rita Lorraine Hubbard and rising star Oge Mora comes the inspirational story of Mary Walker, a woman whose long life spanned from the Civil War to the Civil Rights Movement, and who--with perseverance and dedication--proved that you're never too old to learn.