Resultados para "Black" en Ciencia y tecnología

Three species of bear inhabit North America: the grizzly, the polar bear, and the black bear. But the American black bear is truly North America's bear, found only in North America. Black bears range from Canada to Mexico, from New England to California.

Did you know nothing escapes a black hole? What else do scientists know about these mysterious places in space? Find out more in Black Holes.

Black holes are one of the greatest mysteries of outer space. No visible light can escape the strong gravity of a black hole. This makes black holes invisible - and very difficult to study. But scientists make new discoveries and develop new theories about these mysterious objects every day. In 2015, astronomers were able to finally confirm a theory that Einstein had developed 100 years earlier! And in 2016, scientists found that black holes may form in a different way than they ever thought possible.

The 1930s were a tough time. The Great Depression left many people jobless and penniless. Dust storms and drought led to failed crops. Livestock died. People thought things couldn’t get much worse. Then, on April 14, 1935, the sky turned black. For hours, an enormous dust blizzard blanketed the country in darkness.

In the past and present, Black people have developed new products and created new processes in STEM (science, technology, engineering, and mathematics). Their work has addressed problems such as medical and healthcare inequality and the negative impacts of climate change. Celebrate the people who have made great achievements in STEM, including PlayVS founder Delane Parnell, astronaut, doctor, and engineer Mae Jemison, and environmental justice leader Peggy Shephard.

What space objects can have millions of times more mass than our sun, but they remain invisible? Black holes! Their gravity is so strong that not even light can escape. In this audiobook, you'll learn about one of the amazing wonders of space. As part of the Searchlight Books™ collection, this series explores outer space and sheds light on the question: What's amazing about space? Kid-friendly explanations of science concepts will help you discover the answers!

Black bear claws latch onto bark as they climb up trees. Find out these beautiful bears' life cycle, diet, and habits in their woodland home.

Who knows what is at the end of a black hole? Astrophysicists!

Take a deep look into some of the most mysterious objects in the universe - black holes. Listeners will explore the most up-to-date information available and be encouraged think critically about space discoveries in this STEM-focused title!

In the Black Hills of South Dakota lie eleven thousand acres of breathtaking rangeland and rimrock, canyons and pastures - home to more than three hundred wild mustangs. This preserve was the vision of one man - Dayton Hyde - who conceived of a place where wild horses could live and die in freedom and dignity.

Both Thomas Edison and Henry Ford started off as insatiably curious tinkerers. That curiosity led them to become inventors - with very different results. As Edison invented hit after commercial hit, gaining fame and fortune, Henry struggled to make a single invention (an affordable car) work. Witnessing Thomas' glorious career from afar, a frustrated Henry wondered about the secret to his success.

Brr! Polar bears live in cold places. Learn other things about these animals inside this book.

Who's that hiding in the tree? It's a panda! Listen to learn more about giant pandas.

In April 2019, the Event Horizon Telescope team unveiled the first ever image of a super massive black hole. This inspiring scientific breakthrough took years of hard work, innovative thinking, and a level of global cooperation never seen before. A multinational team of scientists, lead by Dr. Shep Doeleman and Dr. Heino Falkem, used eight of the largest telescopes from around the world to collect more than four million billion bytes of data, which was flown to teams of computer scientists and mathematicians.

If a black hole is not a hole, then what is it? Find out what black holes are, what causes them, and how scientists first discovered them. Learn how astronomers find black holes, get to know our nearest black-hole neighbor, and take a journey that will literally s-t-r-e-t-c-h the mind. Includes...

NEW YORK TIMES BESTSELLER Thirteen extraordinary essays shed new light on the mystery of the universe—and on one of the most brilliant thinkers of our time. “[Hawking] sprinkles his explanations with a wry sense of humor and a keen awareness that the sciences today delve not only into...

Discover the wild history of Jane Goodall’s life and work in this Who HQ biography exploring one of history’s most influential scientists. In this exceptional Who HQ biography that is accessible for young readers, the life and legacy of Jane Goodall, one of the world’s most influential...

From a long-term planning lead for the Mars Exploration Rover Project comes this vivid insider account of some of NASA’s most vital and exciting missions to the Red Planet—a wondrous chronicle of unprecedented scientific discovery and the search for evidence of life on Mars. “There are...

From Karyn Parson's critically acclaimed Sweet Blackberry video series comes the little known story of Garrett Morgan, an African American inventor who created the traffic signal. Before Garrett Morgan became a successful inventor and saved countless lives with his creations, he was a little boy...